Île-Molène has some of the coolest summers among mainland French towns
January mornings start at about 6.8°C. The rainiest month is December; the driest is July. Of the 91 towns of 2,500+ in Finistère, it has the mildest January nights. Central heating does most of its work from December to March, in months below 10°C on average.
These are the figures of Météo-France’s Ouessant-Stiff station, 11 km north-west.
A year in Île-Molène at a glance
Each month’s typical high and low in °C, at the Ouessant-Stiff station.
What a year in Île-Molène feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Ouessant-Stiff.
About 813 mm of rain a year
December is the wettest month and July the driest. About 21 days a year bring 10 mm or more. 90th wettest of 91 towns of 2,500+ in Finistère.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Lanvéoc
under 1 frosts and under 1 days of 25°C a year
On about under 1 nights a year the air drops to 0°C or below; days that stay below freezing are rare. About under 1 days a year reach 25°C, and 0 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Ouessant-Stiff: a frost is a night of 0°C or below, a summer day (jour d’été) 25°C or more, a hot day (forte chaleur) 30°C or more.
The Météo-France station at Ouessant-Stiff
Ouessant-Stiff is 11 km north-west of Île-Molène. Every figure on this page is the station’s, not a measurement in Île-Molène itself.
| Station (Météo-France number) | Ouessant-Stiff (29155005) |
| Distance from the town | 11 km north-west |
| Station altitude | 64 m |
| Town altitude (its center) | 15 m |
| Period | 1995–2020 (the station’s own record) |
| Sunshine measured at | Lanvéoc, 40 km away |
TownRatings matches each commune to one station with at least 24 years of temperature and rain records: the nearest, counting every 100 m of height difference as 10 km, never across the sea.
How Île-Molène compares
Against the 4,385 towns of 2,500 or more in mainland France, each read from its own matched station. The dots are the other towns of 2,500+ in Finistère.
Nearby towns’ climate
The nearest towns of 2,500+ within 29 km. Where a neighbor uses the same station its figures are the same: the differences you’d feel over a few kilometers aren’t in the normals.
| Town | Station | July high | January low | Rain a year |
|---|---|---|---|---|
| Île-Molène | Ouessant-Stiff | 19.3°C | 6.8°C | 813 mm |
| Le Conquet 15 km | same station | 19.3°C about the same | 6.8°C about the same | 813 mm |
| Plouarzel 16 km | same station | 19.3°C about the same | 6.8°C about the same | 813 mm |
| Plougonvelin 19 km | Lanvéoc | 20.9°C 1.6°C warmer | 5.2°C 1.6°C colder | 1,030 mm |
| Locmaria-Plouzané 23 km | Lanvéoc | 20.9°C 1.6°C warmer | 5.2°C 1.6°C colder | 1,030 mm |
| Saint-Renan 25 km | Brest-Guipavas | 20.8°C 1.5°C warmer | 4.6°C 2.2°C colder | 1,230 mm |
| Ploudalmézeau 27 km | Brest-Guipavas | 20.8°C 1.5°C warmer | 4.6°C 2.2°C colder | 1,230 mm |
Île-Molène weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Ouessant-Stiff station; sunshine at Lanvéoc.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 10.4°C | 6.8°C | 8.6°C | 93 mm | 61 |
| February | 10.4°C | 6.4°C | 8.4°C | 75 mm | 81 |
| March | 11.5°C | 7.2°C | 9.3°C | 56 mm | 124 |
| April | 13.2°C | 8.2°C | 10.7°C | 58 mm | 164 |
| May | 15.2°C | 10.2°C | 12.7°C | 50 mm | 192 |
| June | 17.5°C | 12.3°C | 14.9°C | 49 mm | 208 |
| July | 19.3°C | 13.8°C | 16.5°C | 47 mm | 194 |
| August | 19.6°C | 14.1°C | 16.8°C | 61 mm | 190 |
| September | 18.2°C | 13.2°C | 15.7°C | 52 mm | 175 |
| October | 15.9°C | 11.7°C | 13.8°C | 81 mm | 112 |
| November | 13.0°C | 9.4°C | 11.2°C | 95 mm | 71 |
| December | 11.1°C | 7.5°C | 9.3°C | 96 mm | 65 |
| Year | 14.6°C | 10.1°C | 12.3°C | 813 mm | 1,636 |
Where Île-Molène’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Ouessant-Stiff, 11 km away: statistics for 1991–2020 (the station’s own years, 1995–2020, where its record is shorter).
- Which station: among stations with at least 24 of the 30 years of temperature and rain, the nearest to the commune’s population-weighted center, counting each 100 m of height difference as 10 km; mainland towns use mainland stations and each overseas département its own.
- Altitudes: the town’s from IGN’s RGE ALTI® at its population-weighted center; the station’s from Météo-France.
- Sunshine: the nearest station with at least 10 years of sunshine records, Lanvéoc, 40 km away.
- Comparisons: every town of 2,500 or more in mainland France, read the same way; the dots are the towns of 2,500+ in Finistère.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Île-Molène’s climate
How warm does Île-Molène get in summer?
August is the warmest month, with average highs of 19.6°C. About under 1 days a year reach 25°C, fewer than almost every mainland French town, and about 0 reach 30°C.
How cold does Île-Molène get in winter?
February nights average 6.4°C. The air drops to 0°C or below on about under 1 nights a year, and about 0 days a year stay below freezing all day.
How much rain does Île-Molène get?
About 813 mm a year, more than 62% of mainland French towns. December is the wettest month (96 mm) and July the driest (47 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Lanvéoc (40 km away), averages 1,636 hours of sunshine a year.
Are these figures for Île-Molène itself?
No: they are the normals of the Météo-France station matched to Île-Molène, Ouessant-Stiff, 11 km away. France publishes its climate normals by station, not by commune; a valley, a hill or the sea can make a difference over a few kilometers.
Where do these figures come from?
Météo-France’s fiches climatologiques: 30-year averages (1991–2020) for each of its long-running stations, published as open data since 2024. They are normals, not a forecast.
Source: Météo-France, fiches climatologiques, 1991–2020 statistics (station OUESSANT-STIFF, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Île-Molène →
Contains public sector information under the Licence Ouverte / Open Licence 2.0 (Etalab): INSEE, DGFiP, the Interior Ministry’s statistics service (SSMSI), the Ministry of Education (DEPP), the Health Ministry’s statistics service (DREES) and the Housing Ministry (Carte des loyers). Commune boundaries: IGN Admin Express.