More rain falls on Sassis than on 92% of mainland French towns: 1,098 mm a year
Expect July afternoons of about 25.4°C. Only 24°C separates winter nights from summer afternoons. Frost is rarer than in 67% of mainland French towns: about 35 nights a year drop below freezing. Gritters and ice scrapers earn their keep on roughly 35 nights a year below 0°C.
Figures from Météo-France’s Ayros-Arbouix station, 14 km north.
A year in Sassis at a glance
Each month’s typical high and low in °C, at the Ayros-Arbouix station.
What a year in Sassis feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Ayros-Arbouix.
About 1,098 mm of rain a year
November is the wettest month and August the driest. About 36 days a year bring 10 mm or more. 3rd wettest of 14 towns of 2,500+ in Hautes-Pyrénées.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Tarbes-Lourdes-Pyrenees
35 frosts and 71 days of 25°C a year
On about 35 nights a year the air drops to 0°C or below, and on about 1 days it stays below freezing all day. About 71 days a year reach 25°C, and 21 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Ayros-Arbouix: 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 Ayros-Arbouix
Ayros-Arbouix is 14 km north of Sassis. Every figure on this page is the station’s, not a measurement in Sassis itself.
| Station (Météo-France number) | Ayros-Arbouix (65055001) |
| Distance from the town | 14 km north |
| Station altitude | 478 m |
| Town altitude (its center) | 663 m |
| Period | 1991–2020 |
| Sunshine measured at | Tarbes-Lourdes-Pyrenees, 35 km away |
Sassis sits 185 m higher than the station. Air usually cools by about 0.65°C every 100 m, so expect Sassis to run about 1.2°C cooler than these figures.
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 Sassis 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 Hautes-Pyrénées.
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 |
|---|---|---|---|---|
| Sassis | Ayros-Arbouix | 25.4°C | 1.9°C | 1,098 mm |
| Argelès-Gazost 16 km | same station | 25.4°C about the same | 1.9°C about the same | 1,098 mm |
| Lourdes 25 km | Tarbes-Lourdes-Pyrenees | 25.2°C about the same | 1.1°C 0.8°C colder | 1,081 mm |
| Bagnères-de-Bigorre 25 km | Campistrous | 23.7°C 1.7°C cooler | 1.1°C 0.8°C colder | 1,140 mm |
Sassis weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Ayros-Arbouix station; sunshine at Tarbes-Lourdes-Pyrenees.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 11.2°C | 1.9°C | 6.5°C | 110 mm | 114 |
| February | 11.8°C | 2.0°C | 6.9°C | 90 mm | 129 |
| March | 14.9°C | 4.4°C | 9.7°C | 86 mm | 169 |
| April | 16.4°C | 6.2°C | 11.3°C | 107 mm | 170 |
| May | 20.0°C | 9.6°C | 14.8°C | 103 mm | 189 |
| June | 23.3°C | 12.7°C | 18.0°C | 82 mm | 196 |
| July | 25.4°C | 14.7°C | 20.0°C | 66 mm | 207 |
| August | 25.9°C | 14.8°C | 20.3°C | 61 mm | 208 |
| September | 22.8°C | 11.8°C | 17.3°C | 68 mm | 195 |
| October | 19.4°C | 9.2°C | 14.3°C | 83 mm | 156 |
| November | 14.2°C | 4.9°C | 9.5°C | 137 mm | 118 |
| December | 11.7°C | 2.9°C | 7.3°C | 105 mm | 112 |
| Year | 18.1°C | 7.9°C | 13.0°C | 1,098 mm | 1,964 |
Where Sassis’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Ayros-Arbouix, 14 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, Tarbes-Lourdes-Pyrenees, 35 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 Hautes-Pyrénées.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Sassis’s climate
How warm does Sassis get in summer?
August is the warmest month, with average highs of 25.9°C. About 71 days a year reach 25°C, more than 65% of mainland French towns, and about 21 reach 30°C.
How cold does Sassis get in winter?
January nights average 1.9°C. The air drops to 0°C or below on about 35 nights a year, and about 1 days a year stay below freezing all day.
How much rain does Sassis get?
About 1,098 mm a year, more than 92% of mainland French towns. November is the wettest month (137 mm) and August the driest (61 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Tarbes-Lourdes-Pyrenees (35 km away), averages 1,964 hours of sunshine a year.
Are these figures for Sassis itself?
No: they are the normals of the Météo-France station matched to Sassis, Ayros-Arbouix, 14 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 AYROS ARBOUIX, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Sassis →
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.