🇪🇸 Seville Climate Health Index

Friday, 6 November 2026 · updated 04:30 UTC · refreshes live through the day · LIVE

Modelled estimates · Medically reviewed guidance · Not an official warning service

^est. = index derived by Mobi Doctor's model from the weather inputs. All values are modelled estimates from European weather and atmospheric forecast systems (Open-Meteo · CAMS/Copernicus) — not direct readings from a monitoring station in this city, and not official public-health warnings.

The Climate Health Score for Seville today is 3.9/10 — moderate exposure on a 0–10 scale where 10 is extreme. It reflects the worst of ten live hazard readings for Seville — heat, UV, air quality, pollen, hydration demand, allergy, mosquito activity, fire weather, flu season and cold — and is recalculated through the day by Mobi Doctor's European Climate Health Index.

How heat behaves in Seville

Seville sits in the Guadalquivir valley, the hottest corner of mainland Europe: dry, furnace-like afternoons above 40 °C arrive most summers and the heat season runs roughly May to October. The dryness speeds dehydration even when sweating feels effective, and the long season means cumulative strain, not just single bad days.

Seville's traditional architecture is a heat manual written in buildings: thick walls, internal patios, awnings drawn across shopping streets — because the Guadalquivir valley concentrates Spain's most extreme summer. The modern blocks of the outer districts lack those defences and run hotter indoors than the historic centre they surround. Outdoor workers are the critical group — Andalusian regulations now restrict outdoor work in extreme heat — together with older residents in flats where nights stay near 30°C.

Heat and your health in Seville today

Feels-like maximum 22°C (air temperature 23°C) · tonight's minimum 13°C · humidity 72% · heat pillar score 0.0/10

Where today sits in Seville's year: the heat season here typically runs mid-May to early October — mainland Europe's longest big-city season, peaking July to mid-August, with 40°C-plus spells most summers. Tropical nights in Seville: frequent in July and August — the densest weeks bring nights near 25°C in the centre.

Heat stresses the body long before heatstroke. As the air temperature and humidity climb, your heart works harder to push blood to the skin for cooling, you lose fluid and electrolytes through sweat, and blood pressure can dip when you stand. That is why hot days bring more dizziness, fainting, migraines, kidney strain and falls — and studies of heatwave hospital admissions also report more urinary tract infections, thought to be linked to dehydration — not just classic heat exhaustion.

Night temperature matters as much as the daytime peak. When a night stays above 20°C — a tropical night — the cardiovascular system gets far less of its overnight recovery window — one reason heatwave mortality tracks hot nights more closely than hot afternoons. Tonight in Seville drops to around 13°C, which gives the body a proper recovery window.

Pollen count in Seville today

Leading species: Mugwort at ~2 grains/m³ · pollen score 0.7/10

Seville's pollen calendar: Olive May–June at world-leading intensity · grass April–June · plane and cypress in early spring. The live counts above show where today falls in that cycle.

Pollen allergy (hay fever) is triggered by different plants through the year: trees like birch and alder in spring, grasses in early summer, and weeds such as mugwort and ragweed from late July into autumn. Symptoms — sneezing, itchy eyes, a blocked nose, worsened asthma — flare when daily counts cross species-specific thresholds, and air pollution makes the same pollen load feel worse by priming the airways.

On high-count days: keep windows closed in the early morning and evening, shower and change after time outdoors, and start antihistamines before symptoms peak rather than after. If you use an asthma inhaler, keep it with you on high pollen days.

Allergy load in Seville today: pollen × air quality

Combined pollen-and-air allergy load 1.5/10 — pollen 0.7 amplified by air quality (EAQI 44) · estimated from live data

Seville's olive season is world-scale, and it lands in May and June just as strong sun starts cooking traffic exhaust into ozone — the pollutant that primes airways most on hot afternoons. When both run high, the combined load outclasses either alone.

Allergy risk is more than the pollen count. Exhaust particles damage the airway lining and prime the immune response, so the same grains provoke stronger symptoms on polluted days — and pollutant-stressed plants release more allergenic protein per grain. This combined score therefore reads pollen and air quality together: identical counts can feel very different on clean and dirty days, which is why it is tracked as its own pillar rather than folded into either input.

Today the combination is modest — sensitised people can treat this as a normal day, with the usual seasonal routine.

UV index in Seville today

Maximum UV index 4.0 · moderate on the WHO scale

Seville's strong-UV season: April to September — midday index 9–10, among Europe's highest.

UV radiation peaks between late morning and mid-afternoon and is invisible — it burns on cool, cloudy days too. At UV 8 and above, unprotected fair skin can burn in under 30 minutes. Repeated burns drive most skin-cancer risk, and some common medicines (certain antibiotics, diuretics, acne treatments) make skin dramatically more sun-sensitive.

Sun protection is low-priority today, but sunscreen remains sensible for extended time outdoors.

Air quality in Seville today

European AQI 44 · moderate (EAQI scale: 0 good → 100+ worst) · PM2.5 14.4 µg/m³ · ozone 17 µg/m³ · score 3.9/10

Seville's summer air problem is photochemical: intense sun turns traffic exhaust into ozone through the afternoon, and African dust intrusions — calima — occasionally coat the valley in particles just as the heat peaks, a double load for lungs.

Fine particles (PM2.5) reach deep into the lungs and bloodstream; ozone forms in sunny, hot weather and irritates the airways — which is why heatwaves and smog often arrive together. People with asthma, COPD, heart disease, pregnant women and children feel the effects first: more wheeze, more inhaler use, more chest tightness.

Levels are acceptable for outdoor activity today for most people, including sensitive groups.

Fire weather around Seville today

Fire-weather score 0.5/10 — 23°C, 72% humidity, wind to 7 km/h · estimated (weather conduciveness, not active fires)

The Andalusian countryside cures to straw by June, and big burns — Doñana in 2017, the Huelva hills since — have smoked the Guadalquivir valley before. On extreme days the score here is less about the city than about the tinderbox around it.

This pillar scores how conducive the weather is to wildfire — heat, dry air and wind, the published Angström approach — not actual fires. Its health meaning is smoke: wildfire smoke is concentrated fine particulate that can travel hundreds of kilometres, and a smoke episode hits the same people hardest as any pollution spike — asthma, COPD, heart disease, pregnancy, young children and older adults.

Conditions are not notably fire-conducive today. If you see or smell smoke regardless, treat it like a pollution episode: head indoors, close the windows, and postpone outdoor exertion.

Hydration in Seville today

Hydration demand score 0.0/10 · estimated from live weather

Seville combines furnace heat with bone-dry air: fluid loss on a 42°C afternoon here is among the fastest in urban Europe, and the five-month season means chronic low-grade dehydration — headaches, dark urine, kidney grumbles — as much as acute.

Fluid needs are not fixed — they scale with heat, humidity, dry air, UV and activity. Thirst lags behind need, especially in older adults, whose thirst signal weakens with age. Dark urine, headache, and light-headedness on standing are earlier and more reliable signals.

Today's guidance: Normal — drink to thirst; keep water with you on long outings.

Mosquito activity in Seville tonight

Mosquito activity score 2.4/10 — tonight around 13°C at 72% humidity · estimated from live weather (activity, not disease risk)

Mosquito season in Seville: May to October along the river and gardens at dusk. The score above places tonight inside that season using live temperature and humidity.

Mosquitoes fly when nights are warm and humid enough — activity climbs steeply once evenings hold above about 15°C and peaks on still, muggy nights. Southern Europe adds the tiger mosquito, a day-biter now established across much of the Mediterranean, whose continued spread north ECDC tracks. In parts of southern and central Europe, late summer also brings limited local transmission of mosquito-borne infections such as West Nile virus — an activity score is not a disease-risk score, but high-activity weeks are when precautions earn their keep.

Practical: use a repellent containing DEET or icaridin at dusk, cover ankles and wrists outdoors in the evening, screen or close windows at night, and empty standing water on balconies weekly. Speak to a doctor about any fever that develops in the week after heavy bite exposure in an affected region.

Flu season in Seville: where today sits

Flu-season level 2.8/10 · seasonal climatology (ECDC winter pattern), not live case counts

Seville's flu season is compressed and mid-winter: December through February, peaking around January, then a fast fade as the early Andalusian spring opens windows again. Summer sits at the floor; vaccination drives start in October.

Influenza in Europe is sharply seasonal: transmission runs low through summer, builds from late autumn as life moves indoors and cool, dry air favours the virus, then peaks between December and February in ECDC's surveillance pattern. This pillar follows that climatology — it tells you where the calendar sits, not this week's case counts, and we label it that way rather than dress a seasonal curve up as live surveillance.

What to do with it: the score rising through autumn is the cue that vaccination time has arrived — October to November gives antibodies time to build before the peak, and matters most for over-65s, pregnant women, young children and anyone with heart, lung, kidney or immune conditions. At today's level, fever with aches and a cough deserves rest, fluids and distance from vulnerable relatives.

Cold stress in Seville: the other end of the index

Cold-stress score 0.0/10 — tonight's minimum around 13°C

This is one of mainland Spain's mildest winter cities: frost is rare, snow rarer still. The residual risk is the mismatch — houses engineered against 44°C summers, with thick walls and little heating, can hold a damp 8°C indoors through the January rain weeks.

Across Europe, cold claims more lives each year than heat — mostly quietly, through winter's extra heart attacks, strokes and respiratory infections rather than hypothermia. Cold air raises blood pressure and thickens blood within minutes, narrows airways, and stresses hearts hardest in the first snaps of the season, before bodies and habits adjust. Indoor cold in poorly heated homes does as much damage as the weather outside.

Cold is not a factor today — the score sits low, and this pillar will matter again when the season turns. It stays on the page year-round because an honest index needs both ends of the thermometer.

The Seville climate-health year

Spring is Seville's glory and its first health test: orange blossom in March, then one of the world's most intense olive-pollen seasons in May and June as the surrounding groves flower. By late May the heat season is already open, and from June to September the city lives in a rhythm of 38–44°C afternoons and slow overnight cooling. The season runs long — October can still reach 30°C — and the cumulative load of a five-month summer is itself a medical factor.

Typical seasonal patterns from established climatology — the live scores above always reflect today's actual conditions.

Visiting Seville? What travellers should know

If you visit Seville between June and September, build the day around the heat rather than around it not existing: Alcázar and cathedral at opening time, the 14:00–19:00 block indoors — the awning-covered shopping streets and the museums exist for this — and the city's real life after 21:00. The Plaza de España and the riverside have almost no midday shade, and April visitors during Feria regularly meet 32°C days they did not pack for. Carry water; summer tap water is safe and fountains are common.

If you do get ill away from home, you don't have to navigate a foreign health system for something a consultation can solve: speak to a Mobi Doctor physician online from your hotel or apartment.

Medicines in Seville this week

Temperatures are currently inside normal storage ranges. Standard advice applies: keep medicines below 25°C, out of direct sun, and never in a parked vehicle.

Should I speak to a doctor about heat symptoms?

Heat illness escalates in stages, and the right response depends on which stage you're seeing. Use these three tiers:

Local numbers in Spain: 112 — EU-wide emergencies · 061 — urgencias sanitarias · for non-urgent concerns, a Mobi Doctor physician is online in minutes.

General guidance, not a personal assessment — when in doubt, call. In an emergency always call 112.

Sources for the medical guidance

The clinical guidance on this page follows public authority sources:

Medication storage limits follow each product's manufacturer information (SmPC / patient leaflet) — always defer to the leaflet for your specific product, and to your prescriber for personal advice.

Frequently asked questions

Is it safe to exercise outdoors in Seville today?

Yes — heat is not a limiting factor today (heat score 0.0/10). Usual sun protection applies.

Do I need to worry about storing insulin or Ozempic in Seville this week?

Standard rules apply this week: unopened stock in the fridge at 2–8°C, in-use pens below 30°C away from direct sun.

Who is most at risk from today's conditions in Seville?

Today's Climate Health Score is 3.9/10 (Moderate). Elderly: low · Children: low · Outdoor workers: low · Athletes: low. No dominant environmental hazard today.

Will tonight be a tropical night in Seville?

No — tonight drops to around 13°C, below the 20°C tropical-night threshold, giving the body a proper recovery window.

When is the heat season in Seville?

Typically mid-May to early October — mainland Europe's longest big-city season, peaking July to mid-August, with 40°C-plus spells most summers. Frequent in July and August — the densest weeks bring nights near 25°C in the centre. Today's score at the top of this page reflects live conditions, not the seasonal average.

When is pollen season in Seville?

Olive May–June at world-leading intensity · grass April–June · plane and cypress in early spring. This page tracks live counts for six species (alder, birch, grass, mugwort, olive and ragweed) and updates them through the day.

When is mosquito season in Seville?

May to October along the river and gardens at dusk. The live mosquito-activity score on this page places tonight inside that season using temperature and humidity — it measures activity conditions, not disease risk.

Highest-risk cities in Europe today

All cities:

Seville score history — last 30 days

One point per day, refreshed by the daily rebuild. Full archive downloads in the press room.

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Cite this page: “Mobi Doctor — European Climate Health Index, Seville Climate Health Index”, https://www.mobidoctor.eu/health-index/seville/ — updated daily, data CC-BY 4.0 with attribution.