Isques sits near the bottom of mainland French towns for July heat
Midwinter brings lows of about 3.4°C. Frost is rarer than in 92% of mainland French towns: about 19 nights a year drop below freezing. Of all months, November brings the most rain and March the least. Expect about 19 frosty starts a year, nights when the air falls below freezing.
Figures from Météo-France’s Boulogne-Sem station, 7 km north-west.
A year in Isques at a glance
Each month’s typical high and low in °C, at the Boulogne-Sem station.
What a year in Isques feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Boulogne-Sem.
About 825 mm of rain a year
November is the wettest month and March the driest. About 24 days a year bring 10 mm or more. 30th wettest of 131 towns of 2,500+ in Pas-de-Calais.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Le-Touquet
19 frosts and 12 days of 25°C a year
On about 19 nights a year the air drops to 0°C or below, and on about 2 days it stays below freezing all day. About 12 days a year reach 25°C, and 2 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Boulogne-Sem: 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 Boulogne-Sem
Boulogne-Sem is 7 km north-west of Isques. Every figure on this page is the station’s, not a measurement in Isques itself.
| Station (Météo-France number) | Boulogne-Sem (62160001) |
| Distance from the town | 7 km north-west |
| Station altitude | 73 m |
| Town altitude (its center) | 33 m |
| Period | 1991–2020 |
| Sunshine measured at | Le-Touquet, 18 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 Isques 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 |
|---|---|---|---|---|
| Isques | Boulogne-Sem | 20.1°C | 3.4°C | 825 mm |
| Saint-Étienne-au-Mont 2 km | same station | 20.1°C about the same | 3.4°C about the same | 825 mm |
| Saint-Léonard 2.2 km | same station | 20.1°C about the same | 3.4°C about the same | 825 mm |
| Outreau 4.9 km | same station | 20.1°C about the same | 3.4°C about the same | 825 mm |
| Équihen-Plage 5.2 km | same station | 20.1°C about the same | 3.4°C about the same | 825 mm |
| Saint-Martin-Boulogne 5.4 km | same station | 20.1°C about the same | 3.4°C about the same | 825 mm |
| Neufchâtel-Hardelot 6 km | same station | 20.1°C about the same | 3.4°C about the same | 825 mm |
Isques weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Boulogne-Sem station; sunshine at Le-Touquet.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 7.1°C | 3.4°C | 5.3°C | 77 mm | 62 |
| February | 7.3°C | 3.4°C | 5.4°C | 56 mm | 78 |
| March | 9.7°C | 5.0°C | 7.4°C | 48 mm | 133 |
| April | 12.7°C | 7.0°C | 9.8°C | 48 mm | 190 |
| May | 15.6°C | 9.8°C | 12.7°C | 55 mm | 210 |
| June | 18.1°C | 12.5°C | 15.3°C | 48 mm | 220 |
| July | 20.1°C | 14.7°C | 17.4°C | 54 mm | 225 |
| August | 20.7°C | 15.3°C | 18.0°C | 63 mm | 205 |
| September | 18.5°C | 13.2°C | 15.8°C | 70 mm | 161 |
| October | 14.9°C | 10.3°C | 12.6°C | 96 mm | 111 |
| November | 10.8°C | 6.8°C | 8.8°C | 107 mm | 63 |
| December | 7.9°C | 4.1°C | 6.0°C | 103 mm | 53 |
| Year | 13.6°C | 8.8°C | 11.2°C | 825 mm | 1,710 |
Where Isques’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Boulogne-Sem, 7 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, 18 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 Isques’s climate
How warm does Isques get in summer?
August is the warmest month, with average highs of 20.7°C. About 12 days a year reach 25°C, fewer than 98% of mainland French towns, and about 2 reach 30°C.
How cold does Isques get in winter?
January nights average 3.4°C. The air drops to 0°C or below on about 19 nights a year, and about 2 days a year stay below freezing all day.
How much rain does Isques get?
About 825 mm a year, more than 66% of mainland French towns. November is the wettest month (107 mm) and March the driest (48 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Le-Touquet (18 km away), averages 1,710 hours of sunshine a year.
Are these figures for Isques itself?
No: they are the normals of the Météo-France station matched to Isques, Boulogne-Sem, 7 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 BOULOGNE-SEM, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Isques →
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.