Riom Weather in September
Riom in September
The short of it: Riom in September averages a high of 22 °C (72 °F) and a low of 10 °C (50 °F), with 60 mm (2.4 in) of rain and about 12 h 28 min of daylight. Rated 4 of 5 for a visit; the best months are April and September. Source: TerraClimate climate normals, 1991–2020.
Average high 22° · low 10° · rain 60 mm · daylight 12 h 28 min
✦✦✦✦ Recommended for a visit · best months: April & September
Thirty years of records give Riom an average September high of 22°, a low of 10° and some 60 mm of rain. The year turns hard here: highs drop 4° from August to about 22°, with nights near 10°. Wet spells are common — about 60 mm, the 4th wettest month.
The sun is up for about 12 h 28 min in mid-September, 100 minutes less than a month before.
For the traveller: pack light clothes and a jacket for the evening, and an oilskin besides. The Almanac rates September 4 of 5 for a visit; the finest months here are April and September.
Against its neighbours, Riom runs warmer than most and drier than most in September. Mozac, 1 km to the W, sees much the same highs.
September in Riom, by the numbers
- Warmth rank
- 4th warmest of 12
- Rain rank
- 4th wettest of 12
- Versus August
- 4° colder, 7.0 mm less rain
- Versus October
- 5° warmer
- Day–night spread
- 12°
- Snow season
- seldom any
- Daylight, mid-month
- 12 h 28 min
- Average wind
- 8 km/h
Neighbouring Towns
September averages · distance by the crow’s flight| Town | Distance | High | Low | Rain |
|---|---|---|---|---|
| MozacAuvergne-Rhône-Alpes | 1 km W | 22° | 10° | 60 mm |
| Châtel-GuyonAuvergne-Rhône-Alpes | 5 km NW | 21° | 9° | 65 mm |
| VolvicAuvergne-Rhône-Alpes | 6 km WSW | 20° | 9° | 68 mm |
| CébazatAuvergne-Rhône-Alpes | 7 km S | 22° | 10° | 60 mm |
| BlanzatAuvergne-Rhône-Alpes | 8 km SSW | 21° | 10° | 63 mm |
| GerzatAuvergne-Rhône-Alpes | 8 km SSE | 23° | 10° | 59 mm |
| AulnatAuvergne-Rhône-Alpes | 11 km SSE | 23° | 10° | 58 mm |
| Clermont-FerrandAuvergne-Rhône-Alpes | 13 km S | 22° | 10° | 60 mm |