Lanfains sits near the bottom of mainland French towns for July heat
The coldest hours of a January night bottom out at 3.0°C on average. Expect the heaviest rain in December and the lightest in July. It is a wet place: more rain falls here than on 91% of mainland French towns. Plan for rain on about 155 days a year, the days with 1 mm or more.
Figures from Météo-France’s Kerpert station, 19 km west.
A year in Lanfains at a glance
Each month’s typical high and low in °C, at the Kerpert station.
What a year in Lanfains feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Kerpert.
About 1,089 mm of rain a year
December is the wettest month and July the driest. About 34 days a year bring 10 mm or more. 2nd wettest of 61 towns of 2,500+ in Côtes-d'Armor.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Saint-Brieuc
21 frosts and 16 days of 25°C a year
On about 21 nights a year the air drops to 0°C or below, and on about 2 days it stays below freezing all day. About 16 days a year reach 25°C, and 2 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Kerpert: 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 Kerpert
Kerpert is 19 km west of Lanfains. Every figure on this page is the station’s, not a measurement in Lanfains itself.
| Station (Météo-France number) | Kerpert (22092001) |
| Distance from the town | 19 km west |
| Station altitude | 281 m |
| Town altitude (its center) | 291 m |
| Period | 1991–2020 |
| Nearest station of any kind | 10 km |
| Sunshine measured at | Saint-Brieuc, 19 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 Lanfains 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 Côtes-d'Armor.
Nearby towns’ climate
The nearest towns of 2,500+ within 29 km, each with its own matched station.
| Town | Station | July high | January low | Rain a year |
|---|---|---|---|---|
| Lanfains | Kerpert | 21.4°C | 3.0°C | 1,089 mm |
| Quintin 4.4 km | Plœuc-sur-Lie | 22.6°C 1.2°C warmer | 2.6°C about the same | 955 mm |
| Plaintel 8.3 km | Plœuc-sur-Lie | 22.6°C 1.2°C warmer | 2.6°C about the same | 955 mm |
| Plœuc-L'Hermitage 9.6 km | Plœuc-sur-Lie | 22.6°C 1.2°C warmer | 2.6°C about the same | 955 mm |
| Plédran 15 km | Saint-Brieuc | 21.4°C about the same | 3.8°C 0.8°C milder | 757 mm |
| Ploufragan 16 km | Saint-Brieuc | 21.4°C about the same | 3.8°C 0.8°C milder | 757 mm |
| Trégueux 18 km | Saint-Brieuc | 21.4°C about the same | 3.8°C 0.8°C milder | 757 mm |
Lanfains weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Kerpert station; sunshine at Saint-Brieuc.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 7.7°C | 3.0°C | 5.4°C | 128 mm | 65 |
| February | 8.3°C | 2.8°C | 5.6°C | 103 mm | 83 |
| March | 10.7°C | 4.1°C | 7.4°C | 85 mm | 122 |
| April | 13.2°C | 5.4°C | 9.3°C | 83 mm | 163 |
| May | 16.3°C | 8.0°C | 12.1°C | 70 mm | 188 |
| June | 19.3°C | 10.5°C | 14.9°C | 59 mm | 196 |
| July | 21.4°C | 12.3°C | 16.9°C | 56 mm | 198 |
| August | 21.6°C | 12.5°C | 17.0°C | 63 mm | 182 |
| September | 18.9°C | 10.9°C | 14.9°C | 68 mm | 164 |
| October | 14.8°C | 8.7°C | 11.8°C | 110 mm | 110 |
| November | 10.8°C | 5.7°C | 8.3°C | 123 mm | 79 |
| December | 8.3°C | 3.6°C | 5.9°C | 141 mm | 66 |
| Year | 14.3°C | 7.3°C | 10.8°C | 1,089 mm | 1,616 |
Where Lanfains’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Kerpert, 19 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-Brieuc, 19 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 Côtes-d'Armor.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Lanfains’s climate
How warm does Lanfains get in summer?
August is the warmest month, with average highs of 21.6°C. About 16 days a year reach 25°C, fewer than 97% of mainland French towns, and about 2 reach 30°C.
How cold does Lanfains get in winter?
February nights average 2.8°C. The air drops to 0°C or below on about 21 nights a year, and about 2 days a year stay below freezing all day.
How much rain does Lanfains get?
About 1,089 mm a year, more than 91% of mainland French towns. December is the wettest month (141 mm) and July the driest (56 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Saint-Brieuc (19 km away), averages 1,616 hours of sunshine a year.
Are these figures for Lanfains itself?
No: they are the normals of the Météo-France station matched to Lanfains, Kerpert, 19 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 KERPERT, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Lanfains →
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.