Nights turn raw in Châtel-Guyon each January, colder than in 84% of mainland French towns
High summer brings afternoon highs near 25.4°C. Only 25°C separates winter nights from summer afternoons. By July afternoons alone, it runs cooler than 66% of mainland French towns. Plan time outside from May to September, when highs sit at 19–25°C.
Figures from Météo-France’s Sayat station, 9.2 km south.
A year in Châtel-Guyon at a glance
Each month’s typical high and low in °C, at the Sayat station.
What a year in Châtel-Guyon feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Sayat.
About 776 mm of rain a year
July is the wettest month and February the driest. About 23 days a year bring 10 mm or more. 7th wettest of 44 towns of 2,500+ in Puy-de-Dôme.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Clermont-Fd
A frosty town: 56 frosts and 55 days of 25°C a year
On about 56 nights a year the air drops to 0°C or below, and on about 9 days it stays below freezing all day. About 55 days a year reach 25°C, and 15 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Sayat: 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 Sayat
Sayat is 9.2 km south of Châtel-Guyon. Every figure on this page is the station’s, not a measurement in Châtel-Guyon itself.
| Station (Météo-France number) | Sayat (63417001) |
| Distance from the town | 9.2 km south |
| Station altitude | 547 m |
| Town altitude (its center) | 440 m |
| Period | 1993–2020 (the station’s own record) |
| Sunshine measured at | Clermont-Fd, 16 km away |
Châtel-Guyon sits 107 m lower than the station. Air usually warms by about 0.65°C every 100 m you go down, so expect Châtel-Guyon to run about 0.7°C warmer 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 Châtel-Guyon 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 Puy-de-Dôme.
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 |
|---|---|---|---|---|
| Châtel-Guyon | Sayat | 25.4°C | 0.0°C | 776 mm |
| Mozac 3.7 km | Clermont-Fd | 26.8°C 1.4°C warmer | 0.6°C 0.6°C milder | 563 mm |
| Riom 4.9 km | Clermont-Fd | 26.8°C 1.4°C warmer | 0.6°C 0.6°C milder | 563 mm |
| Volvic 6.1 km | same station | 25.4°C about the same | 0.0°C about the same | 776 mm |
| Châteaugay 8.1 km | same station | 25.4°C about the same | 0.0°C about the same | 776 mm |
| Sayat 9.9 km | same station | 25.4°C about the same | 0.0°C about the same | 776 mm |
| Blanzat 10 km | Clermont-Fd | 26.8°C 1.4°C warmer | 0.6°C 0.6°C milder | 563 mm |
Châtel-Guyon weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Sayat station; sunshine at Clermont-Fd.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 6.7°C | 0.0°C | 3.4°C | 56 mm | 85 |
| February | 8.1°C | 0.3°C | 4.2°C | 48 mm | 110 |
| March | 12.1°C | 2.4°C | 7.3°C | 50 mm | 165 |
| April | 15.2°C | 4.9°C | 10.0°C | 73 mm | 179 |
| May | 19.2°C | 8.5°C | 13.8°C | 74 mm | 200 |
| June | 23.1°C | 12.1°C | 17.6°C | 71 mm | 225 |
| July | 25.4°C | 14.0°C | 19.7°C | 78 mm | 256 |
| August | 25.3°C | 13.9°C | 19.6°C | 67 mm | 243 |
| September | 20.9°C | 10.5°C | 15.7°C | 66 mm | 191 |
| October | 16.6°C | 7.7°C | 12.2°C | 60 mm | 136 |
| November | 10.5°C | 3.3°C | 6.9°C | 69 mm | 90 |
| December | 7.4°C | 0.9°C | 4.1°C | 64 mm | 78 |
| Year | 15.9°C | 6.5°C | 11.2°C | 776 mm | 1,958 |
Where Châtel-Guyon’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Sayat, 9.2 km away: statistics for 1991–2020 (the station’s own years, 1993–2020, 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, Clermont-Fd, 16 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 Puy-de-Dôme.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Châtel-Guyon’s climate
How warm does Châtel-Guyon get in summer?
July is the warmest month, with average highs of 25.4°C. About 55 days a year reach 25°C, fewer than 62% of mainland French towns, and about 15 reach 30°C.
How cold does Châtel-Guyon get in winter?
January nights average 0.0°C. The air drops to 0°C or below on about 56 nights a year, and about 9 days a year stay below freezing all day.
How much rain does Châtel-Guyon get?
About 776 mm a year, more than 55% of mainland French towns. July is the wettest month (78 mm) and February the driest (48 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Clermont-Fd (16 km away), averages 1,958 hours of sunshine a year.
Are these figures for Châtel-Guyon itself?
No: they are the normals of the Météo-France station matched to Châtel-Guyon, Sayat, 9.2 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 SAYAT_SAPC, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Châtel-Guyon →
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.