Saint-Folquin sits near the bottom of mainland French towns for warm days
On a normal January night the air cools to about 2.7°C. November is the wettest month, April the driest. Frost is rarer than in 74% of mainland French towns: about 31 nights a year drop below freezing. Homes need heating from November to April, the months averaging under 10°C.
These are the figures of Météo-France’s Calais-Marck station, 12 km west.
A year in Saint-Folquin at a glance
Each month’s typical high and low in °C, at the Calais-Marck station.
What a year in Saint-Folquin feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Calais-Marck.
About 737 mm of rain a year
November is the wettest month and April the driest. About 21 days a year bring 10 mm or more. 64th wettest of 131 towns of 2,500+ in Pas-de-Calais.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Le-Touquet
31 frosts and 15 days of 25°C a year
On about 31 nights a year the air drops to 0°C or below, and on about 3 days it stays below freezing all day. About 15 days a year reach 25°C, and 2 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Calais-Marck: 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 Calais-Marck
Calais-Marck is 12 km west of Saint-Folquin. Every figure on this page is the station’s, not a measurement in Saint-Folquin itself.
| Station (Météo-France number) | Calais-Marck (62548002) |
| Distance from the town | 12 km west |
| Station altitude | 2 m |
| Town altitude (its center) | 2 m |
| Period | 1991–2020 |
| Sunshine measured at | Le-Touquet, 60 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-Folquin 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 Pas-de-Calais.
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-Folquin | Calais-Marck | 21.8°C | 2.7°C | 737 mm |
| Gravelines 4.9 km | same station | 21.8°C about the same | 2.7°C about the same | 737 mm |
| Bourbourg 5.3 km | Watten | 23.7°C 1.9°C warmer | 2.0°C 0.7°C colder | 823 mm |
| Grand-Fort-Philippe 5.6 km | same station | 21.8°C about the same | 2.7°C about the same | 737 mm |
| Oye-Plage 6.5 km | same station | 21.8°C about the same | 2.7°C about the same | 737 mm |
| Loon-Plage 8.3 km | Dunkerque | 21.2°C 0.6°C cooler | 3.4°C 0.7°C milder | 691 mm |
| Audruicq 8.4 km | Watten | 23.7°C 1.9°C warmer | 2.0°C 0.7°C colder | 823 mm |
Saint-Folquin weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Calais-Marck station; sunshine at Le-Touquet.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 7.6°C | 2.7°C | 5.1°C | 60 mm | 62 |
| February | 8.2°C | 2.7°C | 5.5°C | 47 mm | 78 |
| March | 10.5°C | 3.9°C | 7.2°C | 40 mm | 133 |
| April | 13.6°C | 5.5°C | 9.6°C | 38 mm | 190 |
| May | 16.6°C | 8.5°C | 12.5°C | 50 mm | 210 |
| June | 19.4°C | 11.3°C | 15.3°C | 52 mm | 220 |
| July | 21.8°C | 13.5°C | 17.6°C | 55 mm | 225 |
| August | 22.2°C | 13.6°C | 17.9°C | 67 mm | 205 |
| September | 19.5°C | 11.4°C | 15.4°C | 63 mm | 161 |
| October | 15.6°C | 8.8°C | 12.2°C | 91 mm | 111 |
| November | 11.1°C | 5.7°C | 8.4°C | 92 mm | 63 |
| December | 8.1°C | 3.3°C | 5.7°C | 83 mm | 53 |
| Year | 14.5°C | 7.6°C | 11.0°C | 737 mm | 1,710 |
Where Saint-Folquin’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Calais-Marck, 12 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, Le-Touquet, 60 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 Pas-de-Calais.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Saint-Folquin’s climate
How warm does Saint-Folquin get in summer?
August is the warmest month, with average highs of 22.2°C. About 15 days a year reach 25°C, fewer than 97% of mainland French towns, and about 2 reach 30°C.
How cold does Saint-Folquin get in winter?
January nights average 2.7°C. The air drops to 0°C or below on about 31 nights a year, and about 3 days a year stay below freezing all day.
How much rain does Saint-Folquin get?
About 737 mm a year, less than 57% of mainland French towns. November is the wettest month (92 mm) and April the driest (38 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Le-Touquet (60 km away), averages 1,710 hours of sunshine a year.
Are these figures for Saint-Folquin itself?
No: they are the normals of the Météo-France station matched to Saint-Folquin, Calais-Marck, 12 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 CALAIS-MARCK, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Saint-Folquin →
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.