Castel-Sarrazin is among the wettest of mainland French towns: 1,212 mm of rain a year
July afternoons average 26.7°C. The gap between a January night and a July afternoon is 24°C. Only about 28 nights a year bring a frost, fewer than in 80% of mainland French towns. Radiators earn their keep from December to February, the months that average under 10°C.
These are the figures of Météo-France’s Orthez station, 13 km south.
A year in Castel-Sarrazin at a glance
Each month’s typical high and low in °C, at the Orthez station.
What a year in Castel-Sarrazin feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Orthez.
About 1,212 mm of rain a year
November is the wettest month and August the driest. About 42 days a year bring 10 mm or more. 6th wettest of 35 towns of 2,500+ in Landes.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Dax
28 frosts and 89 days of 25°C a year
On about 28 nights a year the air drops to 0°C or below; days that stay below freezing are rare. About 89 days a year reach 25°C, and 25 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Orthez: 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 Orthez
Orthez is 13 km south of Castel-Sarrazin. Every figure on this page is the station’s, not a measurement in Castel-Sarrazin itself.
| Station (Météo-France number) | Orthez (64430003) |
| Distance from the town | 13 km south |
| Station altitude | 96 m |
| Town altitude (its center) | 41 m |
| Period | 1994–2020 (the station’s own record) |
| Sunshine measured at | Dax, 24 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 Castel-Sarrazin 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 Landes.
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 |
|---|---|---|---|---|
| Castel-Sarrazin | Orthez | 26.7°C | 2.8°C | 1,212 mm |
| Orthez 14 km | same station | 26.7°C about the same | 2.8°C about the same | 1,212 mm |
| Hagetmau 16 km | Urgons | 26.8°C about the same | 3.2°C about the same | 1,009 mm |
| Pouillon 17 km | Dax | 26.9°C about the same | 3.3°C 0.5°C milder | 1,155 mm |
| Salies-de-Béarn 19 km | Saint-Gladie | 27.6°C 0.9°C warmer | 2.3°C 0.5°C colder | 1,323 mm |
| Narrosse 20 km | Dax | 26.9°C about the same | 3.3°C 0.5°C milder | 1,155 mm |
| Pontonx-sur-l'Adour 23 km | Bégaar | 27.8°C 1.1°C warmer | 1.8°C 1°C colder | 1,114 mm |
Castel-Sarrazin weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Orthez station; sunshine at Dax.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 11.6°C | 2.8°C | 7.2°C | 126 mm | 90 |
| February | 12.8°C | 2.9°C | 7.8°C | 104 mm | 112 |
| March | 16.1°C | 5.1°C | 10.6°C | 99 mm | 163 |
| April | 18.5°C | 7.5°C | 13.0°C | 105 mm | 173 |
| May | 21.6°C | 10.9°C | 16.3°C | 107 mm | 199 |
| June | 25.0°C | 14.2°C | 19.6°C | 80 mm | 208 |
| July | 26.7°C | 15.7°C | 21.2°C | 67 mm | 226 |
| August | 27.2°C | 15.5°C | 21.4°C | 62 mm | 222 |
| September | 24.9°C | 12.7°C | 18.8°C | 91 mm | 197 |
| October | 21.0°C | 9.9°C | 15.4°C | 103 mm | 145 |
| November | 14.7°C | 5.6°C | 10.2°C | 149 mm | 95 |
| December | 12.2°C | 3.2°C | 7.7°C | 119 mm | 84 |
| Year | 19.4°C | 8.8°C | 14.1°C | 1,212 mm | 1,914 |
Where Castel-Sarrazin’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Orthez, 13 km away: statistics for 1991–2020 (the station’s own years, 1994–2020, where its record is shorter).
- 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, Dax, 24 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 Landes.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Castel-Sarrazin’s climate
How warm does Castel-Sarrazin get in summer?
August is the warmest month, with average highs of 27.2°C. About 89 days a year reach 25°C, more than 79% of mainland French towns, and about 25 reach 30°C.
How cold does Castel-Sarrazin get in winter?
January nights average 2.8°C. The air drops to 0°C or below on about 28 nights a year, and about under 1 days a year stay below freezing all day.
How much rain does Castel-Sarrazin get?
About 1,212 mm a year, more than 97% of mainland French towns. November is the wettest month (149 mm) and August the driest (62 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Dax (24 km away), averages 1,914 hours of sunshine a year.
Are these figures for Castel-Sarrazin itself?
No: they are the normals of the Météo-France station matched to Castel-Sarrazin, Orthez, 13 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 ORTHEZ, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Castel-Sarrazin →
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.