Hardly any mainland French towns see fresher July days than Blonville-sur-Mer
Deep winter brings January lows near 2.5°C. By rainfall alone, it ranks wetter than 81% of mainland French towns. Wet weather is most frequent in December and least in April. Picnics, hikes and garden evenings come into their own from June to September, with highs of 19–22°C.
Figures from Météo-France’s Saint-Gatien des B station, 10 km east.
A year in Blonville-sur-Mer at a glance
Each month’s typical high and low in °C, at the Saint-Gatien des B station.
What a year in Blonville-sur-Mer feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Saint-Gatien des B.
About 920 mm of rain a year
December is the wettest month and April the driest. About 27 days a year bring 10 mm or more. 8th wettest of 53 towns of 2,500+ in Calvados.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Saint-Gatien des B
32 frosts and 19 days of 25°C a year
On about 32 nights a year the air drops to 0°C or below, and on about 3 days it stays below freezing all day. About 19 days a year reach 25°C, and 3 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Saint-Gatien des B: 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-Gatien des B
Saint-Gatien des B is 10 km east of Blonville-sur-Mer. Every figure on this page is the station’s, not a measurement in Blonville-sur-Mer itself.
| Station (Météo-France number) | Saint-Gatien des B (14578001) |
| Distance from the town | 10 km east |
| Station altitude | 139 m |
| Town altitude (its center) | 4 m |
| Period | 1991–2020 |
| Sunshine measured at | the same station |
Blonville-sur-Mer sits 135 m lower than the station. Air usually warms by about 0.65°C every 100 m you go down, so expect Blonville-sur-Mer to run about 0.9°C warmer than these figures.
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 Blonville-sur-Mer 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 Calvados.
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 |
|---|---|---|---|---|
| Blonville-sur-Mer | Saint-Gatien des B | 21.6°C | 2.5°C | 920 mm |
| Deauville 4 km | same station | 21.6°C about the same | 2.5°C about the same | 920 mm |
| Touques 5.4 km | same station | 21.6°C about the same | 2.5°C about the same | 920 mm |
| Trouville-sur-Mer 6 km | same station | 21.6°C about the same | 2.5°C about the same | 920 mm |
| Dives-sur-Mer 11 km | Saint-Sylvain | 23.9°C 2.3°C warmer | 2.7°C about the same | 681 mm |
| Pont-l'Évêque 12 km | Lisieux | 24.3°C 2.7°C warmer | 2.4°C about the same | 881 mm |
| Cabourg 13 km | Saint-Sylvain | 23.9°C 2.3°C warmer | 2.7°C about the same | 681 mm |
Blonville-sur-Mer weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Saint-Gatien des B station.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 7.4°C | 2.5°C | 5.0°C | 78 mm | 67 |
| February | 8.2°C | 2.4°C | 5.3°C | 64 mm | 81 |
| March | 11.0°C | 4.1°C | 7.5°C | 61 mm | 128 |
| April | 13.9°C | 5.6°C | 9.7°C | 60 mm | 178 |
| May | 16.9°C | 8.5°C | 12.7°C | 65 mm | 190 |
| June | 19.7°C | 11.3°C | 15.5°C | 68 mm | 203 |
| July | 21.6°C | 13.2°C | 17.4°C | 64 mm | 205 |
| August | 21.7°C | 13.4°C | 17.5°C | 81 mm | 196 |
| September | 19.2°C | 11.1°C | 15.2°C | 80 mm | 160 |
| October | 15.3°C | 8.7°C | 12.0°C | 95 mm | 113 |
| November | 10.9°C | 5.4°C | 8.2°C | 95 mm | 71 |
| December | 8.1°C | 3.0°C | 5.5°C | 107 mm | 58 |
| Year | 14.5°C | 7.4°C | 11.0°C | 920 mm | 1,651 |
Where Blonville-sur-Mer’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Saint-Gatien des B, 10 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, Saint-Gatien des B, 10 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 Calvados.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Blonville-sur-Mer’s climate
How warm does Blonville-sur-Mer get in summer?
August is the warmest month, with average highs of 21.7°C. About 19 days a year reach 25°C, fewer than 96% of mainland French towns, and about 3 reach 30°C.
How cold does Blonville-sur-Mer get in winter?
February nights average 2.4°C. The air drops to 0°C or below on about 32 nights a year, and about 3 days a year stay below freezing all day.
How much rain does Blonville-sur-Mer get?
About 920 mm a year, more than 81% of mainland French towns. December is the wettest month (107 mm) and April the driest (60 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Saint-Gatien des B (10 km away), averages 1,651 hours of sunshine a year.
Are these figures for Blonville-sur-Mer itself?
No: they are the normals of the Météo-France station matched to Blonville-sur-Mer, Saint-Gatien des B, 10 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 GATIEN DES B, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Blonville-sur-Mer →
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.