Afternoon heat in Saint-Ségal trails that of 94% of mainland French towns
January nights here settle around 3.9°C. Rain peaks in December and eases off in June. Its yearly rainfall tops that of 93% of mainland French towns. Picnics, hikes and garden evenings come into their own from May to September, with highs of 18–23°C.
Figures from Météo-France’s Saint-Ségal S A station, 1.8 km south-west.
A year in Saint-Ségal at a glance
Each month’s typical high and low in °C, at the Saint-Ségal S A station.
What a year in Saint-Ségal feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Saint-Ségal S A.
About 1,126 mm of rain a year
December is the wettest month and June the driest. About 37 days a year bring 10 mm or more. 53rd wettest of 91 towns of 2,500+ in Finistère.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Lanvéoc
31 frosts and 23 days of 25°C a year
On about 31 nights a year the air drops to 0°C or below; days that stay below freezing are rare. About 23 days a year reach 25°C, and 3 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Saint-Ségal S A: 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 Saint-Ségal S A
Saint-Ségal S A is 1.8 km south-west of Saint-Ségal. Every figure on this page is the station’s, not a measurement in Saint-Ségal itself.
| Station (Météo-France number) | Saint-Ségal S A (29263002) |
| Distance from the town | 1.8 km south-west |
| Station altitude | 89 m |
| Town altitude (its center) | 108 m |
| Period | 1991–2020 |
| Sunshine measured at | Lanvéoc, 27 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 Saint-Ségal 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 |
|---|---|---|---|---|
| Saint-Ségal | Saint-Ségal S A | 22.5°C | 3.9°C | 1,126 mm |
| Pont-de-Buis-lès-Quimerch 3 km | same station | 22.5°C about the same | 3.9°C about the same | 1,126 mm |
| Châteaulin 4.6 km | same station | 22.5°C about the same | 3.9°C about the same | 1,126 mm |
| Pleyben 7.8 km | same station | 22.5°C about the same | 3.9°C about the same | 1,126 mm |
| Briec 16 km | same station | 22.5°C about the same | 3.9°C about the same | 1,126 mm |
| Châteauneuf-du-Faou 20 km | Coray Chat Eau | 21.8°C 0.7°C cooler | 3.3°C 0.6°C colder | 1,423 mm |
| Plogonnec 20 km | Quimper | 21.8°C 0.7°C cooler | 4.5°C 0.6°C milder | 1,214 mm |
Saint-Ségal weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Saint-Ségal S A station; sunshine at Lanvéoc.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 9.8°C | 3.9°C | 6.9°C | 130 mm | 61 |
| February | 10.4°C | 3.5°C | 7.0°C | 107 mm | 81 |
| March | 12.6°C | 4.5°C | 8.5°C | 77 mm | 124 |
| April | 15.0°C | 5.4°C | 10.2°C | 84 mm | 164 |
| May | 18.1°C | 8.2°C | 13.1°C | 70 mm | 192 |
| June | 20.8°C | 10.8°C | 15.8°C | 59 mm | 208 |
| July | 22.5°C | 12.7°C | 17.6°C | 65 mm | 194 |
| August | 22.6°C | 12.5°C | 17.6°C | 68 mm | 190 |
| September | 20.5°C | 10.4°C | 15.5°C | 76 mm | 175 |
| October | 16.7°C | 8.9°C | 12.8°C | 118 mm | 112 |
| November | 12.8°C | 6.1°C | 9.5°C | 132 mm | 71 |
| December | 10.4°C | 4.3°C | 7.4°C | 141 mm | 65 |
| Year | 16.0°C | 7.6°C | 11.8°C | 1,126 mm | 1,636 |
Where Saint-Ségal’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Saint-Ségal S A, 1.8 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, Lanvéoc, 27 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 Saint-Ségal’s climate
How warm does Saint-Ségal get in summer?
August is the warmest month, with average highs of 22.6°C. About 23 days a year reach 25°C, fewer than 94% of mainland French towns, and about 3 reach 30°C.
How cold does Saint-Ségal get in winter?
February nights average 3.5°C. The air drops to 0°C or below on about 31 nights a year, and about under 1 days a year stay below freezing all day.
How much rain does Saint-Ségal get?
About 1,126 mm a year, more than 93% of mainland French towns. December is the wettest month (141 mm) and June the driest (59 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Lanvéoc (27 km away), averages 1,636 hours of sunshine a year.
Are these figures for Saint-Ségal itself?
No: they are the normals of the Météo-France station matched to Saint-Ségal, Saint-Ségal S A, 1.8 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 ST-SEGAL S A, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Saint-Ségal →
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.