Trébry has cooler summers than 94% of mainland French towns
The coldest hours of a January night bottom out at 2.6°C on average. December is the wettest month, July the driest. It is a wet place: more rain falls here than on 84% of mainland French towns. Expect about 40 frosty starts a year, nights when the air falls below freezing.
These are the figures of Météo-France’s Plœuc-sur-Lie station, 16 km west.
A year in Trébry at a glance
Each month’s typical high and low in °C, at the Plœuc-sur-Lie station.
What a year in Trébry feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Plœuc-sur-Lie.
About 955 mm of rain a year
December is the wettest month and July the driest. About 28 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
40 frosts and 24 days of 25°C a year
On about 40 nights a year the air drops to 0°C or below, and on about 1 days it stays below freezing all day. About 24 days a year reach 25°C, and 3 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Plœuc-sur-Lie: 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 Plœuc-sur-Lie
Plœuc-sur-Lie is 16 km west of Trébry. Every figure on this page is the station’s, not a measurement in Trébry itself.
| Station (Météo-France number) | Plœuc-sur-Lie (22203002) |
| Distance from the town | 16 km west |
| Station altitude | 196 m |
| Town altitude (its center) | 171 m |
| Period | 1991–2020 |
| Sunshine measured at | Saint-Brieuc, 30 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 Trébry 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. 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 |
|---|---|---|---|---|
| Trébry | Plœuc-sur-Lie | 22.6°C | 2.6°C | 955 mm |
| Le Mené 7.2 km | same station | 22.6°C about the same | 2.6°C about the same | 955 mm |
| Plénée-Jugon 11 km | Quintenic | 22.6°C about the same | 3.5°C 0.9°C milder | 770 mm |
| Quessoy 12 km | Quintenic | 22.6°C about the same | 3.5°C 0.9°C milder | 770 mm |
| Lamballe-Armor 15 km | Quintenic | 22.6°C about the same | 3.5°C 0.9°C milder | 770 mm |
| Plœuc-L'Hermitage 17 km | same station | 22.6°C about the same | 2.6°C about the same | 955 mm |
| Yffiniac 17 km | Quintenic | 22.6°C about the same | 3.5°C 0.9°C milder | 770 mm |
Trébry weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Plœuc-sur-Lie station; sunshine at Saint-Brieuc.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 8.3°C | 2.6°C | 5.5°C | 104 mm | 65 |
| February | 9.3°C | 2.4°C | 5.8°C | 87 mm | 83 |
| March | 11.9°C | 3.5°C | 7.7°C | 69 mm | 122 |
| April | 14.5°C | 4.7°C | 9.6°C | 71 mm | 163 |
| May | 17.6°C | 7.7°C | 12.6°C | 63 mm | 188 |
| June | 20.5°C | 10.4°C | 15.5°C | 57 mm | 196 |
| July | 22.6°C | 12.1°C | 17.3°C | 46 mm | 198 |
| August | 22.7°C | 12.0°C | 17.4°C | 59 mm | 182 |
| September | 20.1°C | 9.9°C | 15.0°C | 66 mm | 164 |
| October | 15.8°C | 8.1°C | 11.9°C | 103 mm | 110 |
| November | 11.6°C | 5.2°C | 8.4°C | 113 mm | 79 |
| December | 8.9°C | 3.1°C | 6.0°C | 119 mm | 66 |
| Year | 15.3°C | 6.8°C | 11.1°C | 955 mm | 1,616 |
Where Trébry’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Plœuc-sur-Lie, 16 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, 30 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 Trébry’s climate
How warm does Trébry get in summer?
August is the warmest month, with average highs of 22.7°C. About 24 days a year reach 25°C, fewer than 93% of mainland French towns, and about 3 reach 30°C.
How cold does Trébry get in winter?
February nights average 2.4°C. The air drops to 0°C or below on about 40 nights a year, and about 1 days a year stay below freezing all day.
How much rain does Trébry get?
About 955 mm a year, more than 84% of mainland French towns. December is the wettest month (119 mm) and July the driest (46 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Saint-Brieuc (30 km away), averages 1,616 hours of sunshine a year.
Are these figures for Trébry itself?
No: they are the normals of the Météo-France station matched to Trébry, Plœuc-sur-Lie, 16 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 PLOEUC-SUR-LIE, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Trébry →
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.