Météo à Lac Windermere en septembre
À Lac Windermere en septembre : frais, pluvieux, avec un air pur — une très bonne période pour y aller.
Mise à jour : septembre 2026 · normales climatiques issues de la réanalyse ERA5
N° 6 sur 12 mois à Lac Windermere · n° 782 sur 1413 dans le monde en septembre · confort 78/100 (niveau B)
- Jour
- 16°C
- Nuit
- 9°C
- Jours de pluie
- 17
- Soleil
- 7 h
- Humidité
- 86%
- Durée du jour
- 13 h

Notes de voyageurs sur Lac Windermere en septembre
Windermere-forum threads on mid-September weather describe daytime readings anywhere from the mid-teens to low-20s Celsius, a real spread depending on the week and year, with a genuine chill in the morning and evening regardless of how warm the afternoon runs. Posters are consistent the Lake District's climate stays changeable and unpredictable through September, real rain likely at some point during any multi-day stay. Regulars describe early September as sometimes delivering a run of still, sunny days, though nothing is guaranteed and posters call it genuinely pot luck year to year. September and October are quieter, often better months than peak summer for anyone flexible, crowds noticeably thinner around the lake. Layering remains the standing advice, temperatures shifting hour to hour and place to place. The record: 16.3C days feeling like 15C, 8.7C nights, an extraordinarily high 176mm across nearly 17 days and 86 percent humidity.
Les autres mois à Lac Windermere
Windermere-forum threads on a February visit describe several seasonal attractions as not open yet, posters noting the ferry to Red Nab doesn't start until March and various other activities wait until Easter. Regulars call walking still rewarding this time of year, several posters planning entire February trips built around train access and lakeside routes rather than boat trips. Posters call road access reliable even in snowy conditions, the A591 typically gritted or plowed and staying open through most winter weather. Regulars recommend real caution around a non-refundable booking regardless of road reliability, weather here still capable of disrupting plans even when the main roads stay clear. Posters recommend real waterproof layers regardless of forecast, February conditions here shifting fast between a clear morning and a genuine downpour. The record: 7.4C days feeling like 5C, 2C nights, an extraordinarily high 132mm across 16 days and 84 percent humidity.
Windermere-forum threads on a January visit call the weather genuinely unpredictable, posters describing cold, possibly wet, possibly windy conditions as the baseline with darkness setting in by half four. Regulars call the tradeoff a real one though, considerably fewer crowds and better accommodation deals than summer. Posters recommend proper waterproofs, sturdy boots, a map and a compass for anyone walking, fog here capable of rolling in with little warning. Regulars call Kirkstone Pass the most weather-vulnerable major road locally, snow and ice there a genuine possibility though not dramatically more common than elsewhere. Posters call many smaller B&Bs closed for their own winter break in January, checking availability directly standing advice. Regulars recommend planning any walk around the short daylight hours, getting back before dusk a real priority. The record: 6.4C days feeling like 3C, 1C nights, an extraordinarily high 128.9mm across over 15 days and 92 percent humidity.
Windermere-forum threads on March weather are candid: expect anything, posters describing conditions as capable of turning mild and sunny or properly wet and windy within the same week. Regulars call the danger of serious accumulation mostly past by March, though the high fells can still hold real snow on north-facing ground. Posters recommend the short Orrest Head climb right from town for an easy view without much commitment, a reasonable option on a changeable day. Regulars call Ambleside and Grasmere both a short bus ride away, offering considerably more challenging routes for anyone properly equipped. Posters recommend real waterproof layers regardless of how the morning starts, weather here notoriously quick to flip. Regulars call a lakeside stroll along Claife Heights a genuinely pleasant lower-stakes option on a rougher day. The record: 9.1C days feeling like 6C, 2C nights, an extraordinarily high 106.9mm across over 15 days and 85 percent humidity.
Windermere-forum threads on early April travel describe a genuinely good window for scenery, daffodils and spring lambs out in the fields, but posters are consistent the fells themselves can still be holding a real dusting on their upper slopes even as the valley floor runs mild and clear. One visitor described waking to several inches on the ground at a fellside hostel, then finding daffodils blooming in full sun just a few miles away at lake level - a genuine microclimate split that regulars say is normal for the month. The Lake District's reputation as one of England's wetter corners holds in April too, real odds of a passing shower most days, though bright spells are called just as likely. Regulars advise treating any high-fell walk as a full mountain outing - proper boots, map, layers - regardless of how mild the town itself feels. The record: 11.8C days feeling like 9C, 2.5C nights, 72mm across 12.4 days, 1.2cm of late-season snowfall, a 10.1C sea and 79 percent humidity.
Ajoute ta propre note depuis la fiche de Lac Windermere sur la carte.
Normales climatiques à Lac Windermere — septembre
Moyennes mensuelles issues de la réanalyse ERA5. L’AQI est l’indice américain de qualité de l’air (US AQI) moyen du mois.
Affluence à Lac Windermere en septembre
À quel point le lieu lui-même est fréquenté — vacances scolaires et grands départs, les mois signalés par la rédaction, et l’attrait que la météo leur donne. Jamais pris en compte dans le score de confort.
FréquentéPeak Lakes summer, vacances scolaires dans 3 des pays d’où viennent ses visiteurs(estimé)
Pic d’affluenceFréquentéIntersaisonCalme
Les meilleurs mois pour la météo à Lac Windermere
Classés selon le score de confort climatique propre à cette destination au fil de l’année — autre chose que son affluence (voir Affluence plus haut).
Météo correcteÀ Lac Windermere, la météo est au top entre mai et juillet, avec un pic vers juin.
Meilleure météoMétéo correcteMétéo la plus rude
Au programme à Lac Windermere en septembre
Événements saisonniers récurrents, spectacles naturels, fermetures et vacances — sélectionnés et sourcés.
- Saison
Midge season
20 mai – 15 sept. · en généralInsectes et maladiesStill, damp evenings by the water and in the wooded valleys are when they are worst; the open fells and anywhere with a breeze are fine. Nowhere near a Scottish summer, but enough to move a picnic.
- Vacances
Peak Lakes summer
18 juil. – 1 sept.Vacances scolairesBondéRéserver tôtThe A591 through Ambleside crawls, Bowness pier is a queue and the popular fell car parks are full before nine. Starting early or walking from the village solves most of it. Source ↗
Tout près, il se passe quelque chose
À moins de 300 km de Lac Windermere — une excursion à la journée ou un saut de puce — avec quelque chose au programme ce mois-ci. Jamais pris en compte dans le score de confort.
Où se trouve Lac Windermere ?
Lac Windermere en septembre — FAQ
- Est-ce une bonne période pour aller à Lac Windermere en septembre ?
- À Lac Windermere en septembre : frais, pluvieux, avec un air pur — une très bonne période pour y aller. Sur le score de confort de SeasonMap, ce mois se classe au rang 6 sur 12 pour Lac Windermere (78/100).
- Quel temps fait-il à Lac Windermere en septembre ?
- En septembre, Lac Windermere affiche en moyenne une maximale de 16.3 °C et une minimale de 8.7 °C, avec environ 135.7 mm de pluie sur à peu près 16.6 jours de pluie.
- Quelle est la qualité de l’air à Lac Windermere en septembre ?
- En septembre, l’indice américain de qualité de l’air (US AQI) moyen à Lac Windermere tourne autour de 33.
À moins de 300 km : International Beatleweek à Liverpool, 26 août – 1 sept. ; Manchester Pride à Manchester, vers 20 août – 1 sept.