Afternoons in Cilaos reach 19 to 26 degrees in every month of the year
Twelve months of showers and storms leave about 1,765 mm. From frosty January to warm July, readings climb 18°C. Set against mainland French towns, none of its figures stands out.
Figures from Météo-France’s Cilaos station, 1.4 km north.
A year in Cilaos at a glance
Each month’s typical high and low in °C, at the Cilaos station.
What a year in Cilaos feels like
Typical highs and lows in the rainier and the drier half of the year, and by month, from Météo-France’s 1991–2020 normals at Cilaos.
About 1,765 mm of rain a year
February is the wettest month and September the driest. About 32 days a year bring 10 mm or more. 9th wettest of 24 towns of 2,500+ in Réunion.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Gillot-Aéroport
under 1 days of 30°C or more a year
About 93 days a year reach 25°C and under 1 reach 30°C. Frost is unknown at the coast.
Day counts are Météo-France’s 1991–2020 normals at Cilaos: 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 Cilaos
Cilaos is 1.4 km north of Cilaos. Every figure on this page is the station’s, not a measurement in Cilaos itself.
| Station (Météo-France number) | Cilaos (97424410) |
| Distance from the town | 1.4 km north |
| Station altitude | 1,197 m |
| Town altitude (its center) | 1,155 m |
| Period | 1991–2020 |
| Sunshine measured at | Gillot-Aéroport, 29 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 Cilaos compares
Against the 24 towns of 2,500+ in Réunion (the dots). Mainland France’s towns aren’t a fair comparison for a tropical climate.
Nearby towns’ climate
The nearest towns of 2,500+ within 29 km, each with its own matched station.
| Town | Station | Warmest-month high | Coolest-month low | Rain a year |
|---|---|---|---|---|
| Cilaos | Cilaos | 25.5°C | 7.4°C | 1,765 mm |
| Entre-Deux 11 km | Le Gol les Hauts - Cirad | 29.6°C 4.1°C warmer | 14.4°C 7°C milder | 1,162 mm |
| Salazie 13 km | Mare A Vieille Place | 26.3°C 0.8°C warmer | 11.4°C 4°C milder | 3,052 mm |
| Le Tampon 14 km | Le Tampon - Cirad | 26.8°C 1.3°C warmer | 11.0°C 3.6°C milder | 1,424 mm |
| Saint-Louis 14 km | Pierrefonds - Cirad | 31.6°C 6.1°C warmer | 16.0°C 8.6°C milder | 695 mm |
| La Plaine-des-Palmistes 16 km | Plaine des Palmistes | 24.0°C 1.5°C cooler | 9.6°C 2.2°C milder | 4,302 mm |
| Les Avirons 17 km | Le Gol les Hauts - Cirad | 29.6°C 4.1°C warmer | 14.4°C 7°C milder | 1,162 mm |
Cilaos weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Cilaos station; sunshine at Gillot-Aéroport.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 25.5°C | 15.3°C | 20.4°C | 434 mm | 218 |
| February | 25.4°C | 15.6°C | 20.5°C | 456 mm | 196 |
| March | 25.0°C | 14.8°C | 19.9°C | 328 mm | 215 |
| April | 24.0°C | 13.1°C | 18.6°C | 105 mm | 216 |
| May | 22.1°C | 10.6°C | 16.4°C | 64 mm | 214 |
| June | 20.2°C | 8.2°C | 14.2°C | 45 mm | 210 |
| July | 19.4°C | 7.4°C | 13.4°C | 43 mm | 222 |
| August | 19.9°C | 7.4°C | 13.7°C | 33 mm | 216 |
| September | 20.8°C | 8.2°C | 14.5°C | 32 mm | 211 |
| October | 22.4°C | 9.8°C | 16.1°C | 33 mm | 211 |
| November | 23.9°C | 11.5°C | 17.7°C | 53 mm | 212 |
| December | 25.1°C | 13.6°C | 19.3°C | 140 mm | 227 |
| Year | 22.8°C | 11.3°C | 17.1°C | 1,765 mm | 2,567 |
Where Cilaos’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Cilaos, 1.4 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, Gillot-Aéroport, 29 km away.
- Comparisons: the towns of 2,500+ in Réunion, read the same way.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Cilaos’s climate
How warm does Cilaos get in summer?
January is the warmest month, with average highs of 25.5°C. About 93 days a year reach 25°C, and about under 1 reach 30°C.
Does Cilaos ever get cool?
Not much: the coolest nights, in July, average 7.4°C.
How much rain does Cilaos get?
About 1,765 mm a year. February is the wettest month (456 mm) and September the driest (32 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Gillot-Aéroport (29 km away), averages 2,567 hours of sunshine a year.
Are these figures for Cilaos itself?
No: they are the normals of the Météo-France station matched to Cilaos, Cilaos, 1.4 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 CILAOS, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Cilaos →
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.