Hardly any mainland French towns see fresher July days than Sainte-Sève
Nights in January average 4.1°C. Frosty nights are scarcer than in 93% of mainland French towns. The rainiest month is December; the driest is July. Warm coats and heating bills mark the months from November to March, when means dip under 10°C.
These are the figures of Météo-France’s Pleyber-Christ Sa station, 7 km south.
A year in Sainte-Sève at a glance
Each month’s typical high and low in °C, at the Pleyber-Christ Sa station.
What a year in Sainte-Sève feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Pleyber-Christ Sa.
About 1,102 mm of rain a year
December is the wettest month and July the driest. About 34 days a year bring 10 mm or more. 58th wettest of 91 towns of 2,500+ in Finistère.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Landivisiau
19 frosts and 20 days of 25°C a year
On about 19 nights a year the air drops to 0°C or below; days that stay below freezing are rare. About 20 days a year reach 25°C, and 2 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Pleyber-Christ Sa: 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 Pleyber-Christ Sa
Pleyber-Christ Sa is 7 km south of Sainte-Sève. Every figure on this page is the station’s, not a measurement in Sainte-Sève itself.
| Station (Météo-France number) | Pleyber-Christ Sa (29163003) |
| Distance from the town | 7 km south |
| Station altitude | 147 m |
| Town altitude (its center) | 86 m |
| Period | 1991–2020 |
| Sunshine measured at | Landivisiau, 20 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 Sainte-Sève 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 |
|---|---|---|---|---|
| Sainte-Sève | Pleyber-Christ Sa | 21.9°C | 4.1°C | 1,102 mm |
| Saint-Martin-des-Champs 3.3 km | same station | 21.9°C about the same | 4.1°C about the same | 1,102 mm |
| Morlaix 4.9 km | same station | 21.9°C about the same | 4.1°C about the same | 1,102 mm |
| Taulé 5.4 km | same station | 21.9°C about the same | 4.1°C about the same | 1,102 mm |
| Plourin-lès-Morlaix 5.5 km | same station | 21.9°C about the same | 4.1°C about the same | 1,102 mm |
| Pleyber-Christ 5.8 km | same station | 21.9°C about the same | 4.1°C about the same | 1,102 mm |
| Guiclan 6.6 km | same station | 21.9°C about the same | 4.1°C about the same | 1,102 mm |
Sainte-Sève weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Pleyber-Christ Sa station; sunshine at Landivisiau.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 9.3°C | 4.1°C | 6.7°C | 128 mm | 60 |
| February | 9.8°C | 3.8°C | 6.8°C | 107 mm | 74 |
| March | 12.0°C | 4.7°C | 8.4°C | 82 mm | 110 |
| April | 14.4°C | 5.7°C | 10.0°C | 79 mm | 143 |
| May | 17.4°C | 8.3°C | 12.9°C | 70 mm | 171 |
| June | 20.1°C | 10.9°C | 15.5°C | 62 mm | 183 |
| July | 21.9°C | 12.7°C | 17.3°C | 58 mm | 169 |
| August | 22.1°C | 12.8°C | 17.5°C | 63 mm | 165 |
| September | 20.0°C | 11.1°C | 15.5°C | 74 mm | 154 |
| October | 16.1°C | 9.2°C | 12.7°C | 113 mm | 105 |
| November | 12.2°C | 6.6°C | 9.4°C | 124 mm | 68 |
| December | 9.8°C | 4.5°C | 7.2°C | 141 mm | 62 |
| Year | 15.4°C | 7.9°C | 11.7°C | 1,102 mm | 1,463 |
Where Sainte-Sève’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Pleyber-Christ Sa, 7 km away: statistics for 1991–2020.
- 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, Landivisiau, 20 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 Sainte-Sève’s climate
How warm does Sainte-Sève get in summer?
August is the warmest month, with average highs of 22.1°C. About 20 days a year reach 25°C, fewer than 95% of mainland French towns, and about 2 reach 30°C.
How cold does Sainte-Sève get in winter?
February nights average 3.8°C. The air drops to 0°C or below on about 19 nights a year, and about under 1 days a year stay below freezing all day.
How much rain does Sainte-Sève get?
About 1,102 mm a year, more than 92% of mainland French towns. December is the wettest month (141 mm) and July the driest (58 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Landivisiau (20 km away), averages 1,463 hours of sunshine a year.
Are these figures for Sainte-Sève itself?
No: they are the normals of the Météo-France station matched to Sainte-Sève, Pleyber-Christ Sa, 7 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 PLEYBER-CHRIST SA, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Sainte-Sève →
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.