Pontarlier in September
6.5out of 10
Possible, with caveats
Mild: highs around 18°C. Frequent rain: about 14 rainy days.
18°CAvg high
10°CAvg low
14Rainy days (126 mm)
12:19 hDaylight
07:19Sunrise · 19:38 Sunset
Why this score
- Mild: highs around 18°C
- Frequent rain: about 14 rainy days
What to wear and pack
- Layers you can add or remove
- Rain jacket or compact umbrella
How reliable is the forecast?
Rain in September varies a lot between years (±3.9 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 4°C | -1°C | 128 mm | 14 | – | – | 3.8 |
| February | 5°C | -1°C | 116 mm | 13 | – | – | 4.2 |
| March | 9°C | 2°C | 121 mm | 14 | – | – | 4.9 |
| April | 13°C | 5°C | 121 mm | 15 | – | – | 5.5 |
| May | 17°C | 8°C | 156 mm | 17 | – | – | 5.6 |
| June | 21°C | 12°C | 142 mm | 16 | – | – | 6.5 |
| July | 23°C | 13°C | 137 mm | 16 | – | – | 6.8 |
| August | 23°C | 13°C | 139 mm | 15 | – | – | 6.8 |
| September | 18°C | 10°C | 126 mm | 14 | – | – | 6.5 |
| October | 14°C | 7°C | 129 mm | 14 | – | – | 5.7 |
| November | 8°C | 2°C | 136 mm | 15 | – | – | 4.6 |
| December | 4°C | 0°C | 149 mm | 15 | – | – | 3.7 |
Frequently asked questions
How hot is Pontarlier in September?
Daytime highs average 18°C and nights about 10°C.
When is the best time to visit Pontarlier?
The best months are July, August, June, September.