Saint-Lô gets fewer days of 25 degrees or more than 90% of mainland French towns
On a normal January night the air cools to about 2.3°C. A year here swings 22°C from midwinter lows to midsummer highs. Rain is plentiful here, more than falls on 84% of mainland French towns. Warm coats and heating bills mark the months from November to April, when means dip under 10°C.
Figures from Météo-France’s Condé-sur-Vire station, 7.6 km south-east.
A year in Saint-Lô at a glance
Each month’s typical high and low in °C, at the Condé-sur-Vire station.
What a year in Saint-Lô feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Condé-sur-Vire.
About 957 mm of rain a year
December is the wettest month and July the driest. About 29 days a year bring 10 mm or more. 19th wettest of 39 towns of 2,500+ in Manche.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Caen-Carpiquet
A frosty town: 51 frosts and 33 days of 25°C a year
On about 51 nights a year the air drops to 0°C or below, and on about under 1 days it stays below freezing all day. About 33 days a year reach 25°C, and 6 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Condé-sur-Vire: 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 Condé-sur-Vire
Condé-sur-Vire is 7.6 km south-east of Saint-Lô. Every figure on this page is the station’s, not a measurement in Saint-Lô itself.
| Station (Météo-France number) | Condé-sur-Vire (50139001) |
| Distance from the town | 7.6 km south-east |
| Station altitude | 28 m |
| Town altitude (its center) | 39 m |
| Period | 1991–2020 |
| Sunshine measured at | Caen-Carpiquet, 46 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-Lô 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 Manche.
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-Lô | Condé-sur-Vire | 23.6°C | 2.3°C | 957 mm |
| Agneaux 2.5 km | same station | 23.6°C about the same | 2.3°C about the same | 957 mm |
| Bourgvallées 7.5 km | same station | 23.6°C about the same | 2.3°C about the same | 957 mm |
| Condé-sur-Vire 7.8 km | same station | 23.6°C about the same | 2.3°C about the same | 957 mm |
| Saint-Jean-d'Elle 8.7 km | Livry | 22.0°C 1.6°C cooler | 2.8°C 0.5°C milder | 914 mm |
| Marigny-Le-Lozon 12 km | Coutances | 22.5°C 1.1°C cooler | 3.2°C 0.9°C milder | 1,093 mm |
| Saint-Amand-Villages 12 km | same station | 23.6°C about the same | 2.3°C about the same | 957 mm |
Saint-Lô weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Condé-sur-Vire station; sunshine at Caen-Carpiquet.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 8.9°C | 2.3°C | 5.6°C | 98 mm | 71 |
| February | 9.9°C | 2.1°C | 6.0°C | 75 mm | 90 |
| March | 12.5°C | 3.3°C | 7.9°C | 69 mm | 130 |
| April | 15.1°C | 4.6°C | 9.8°C | 65 mm | 179 |
| May | 18.5°C | 7.7°C | 13.1°C | 66 mm | 203 |
| June | 21.3°C | 10.4°C | 15.9°C | 62 mm | 213 |
| July | 23.6°C | 12.3°C | 17.9°C | 56 mm | 219 |
| August | 23.8°C | 12.2°C | 18.0°C | 72 mm | 205 |
| September | 20.9°C | 9.6°C | 15.2°C | 69 mm | 171 |
| October | 16.7°C | 7.9°C | 12.3°C | 98 mm | 117 |
| November | 12.4°C | 4.7°C | 8.5°C | 105 mm | 82 |
| December | 9.2°C | 2.5°C | 5.9°C | 123 mm | 67 |
| Year | 16.1°C | 6.6°C | 11.3°C | 957 mm | 1,746 |
Where Saint-Lô’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Condé-sur-Vire, 7.6 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, Caen-Carpiquet, 46 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 Manche.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Saint-Lô’s climate
How warm does Saint-Lô get in summer?
August is the warmest month, with average highs of 23.8°C. About 33 days a year reach 25°C, fewer than 90% of mainland French towns, and about 6 reach 30°C.
How cold does Saint-Lô get in winter?
February nights average 2.1°C. The air drops to 0°C or below on about 51 nights a year, and about under 1 days a year stay below freezing all day.
How much rain does Saint-Lô get?
About 957 mm a year, more than 84% of mainland French towns. December is the wettest month (123 mm) and July the driest (56 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Caen-Carpiquet (46 km away), averages 1,746 hours of sunshine a year.
Are these figures for Saint-Lô itself?
No: they are the normals of the Météo-France station matched to Saint-Lô, Condé-sur-Vire, 7.6 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 CONDE SUR VIRE_SAPC, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Saint-Lô →
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.