Ishikari in September
6.9out of 10
Possible, with caveats
Mild: highs around 21°C. Frequent rain: about 13 rainy days.
21°CAvg high
16°CAvg low
13Rainy days (140 mm)
12:17 hDaylight
05:21Sunrise · 17:37 Sunset
Why this score
- Mild: highs around 21°C
- Frequent rain: about 13 rainy days
What to wear and pack
- Layers you can add or remove
- Rain jacket or compact umbrella
How reliable is the forecast?
Rainfall in September is fairly consistent from year to year (2.9 days). 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 | -2°C | -6°C | 80 mm | 19 | – | – | 2.5 |
| February | -1°C | -6°C | 65 mm | 15 | – | – | 3.0 |
| March | 3°C | -2°C | 61 mm | 12 | – | – | 4.0 |
| April | 9°C | 3°C | 63 mm | 10 | – | – | 5.6 |
| May | 14°C | 8°C | 83 mm | 12 | – | – | 6.3 |
| June | 18°C | 13°C | 75 mm | 11 | – | – | 7.1 |
| July | 22°C | 18°C | 128 mm | 12 | – | – | 7.2 |
| August | 24°C | 20°C | 166 mm | 13 | – | – | 7.0 |
| September | 21°C | 16°C | 140 mm | 13 | – | – | 6.9 |
| October | 15°C | 10°C | 100 mm | 14 | – | – | 6.0 |
| November | 8°C | 3°C | 111 mm | 18 | – | – | 4.2 |
| December | 1°C | -3°C | 104 mm | 20 | – | – | 2.5 |
Frequently asked questions
How hot is Ishikari in September?
Daytime highs average 21°C and nights about 16°C.
When is the best time to visit Ishikari?
The best months are July, June, August, September.