Iserlohn in May
6.7out of 10
Possible, with caveats
Mild: highs around 18°C. Frequent rain: about 13 rainy days.
18°CAvg high
9°CAvg low
13Rainy days (67 mm)
15:22 hDaylight
05:45Sunrise · 21:06 Sunset
Why this score
- Mild: highs around 18°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?
Rain in May varies a lot between years (±3.4 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 | 0°C | 81 mm | 14 | – | – | 4.2 |
| February | 5°C | 0°C | 67 mm | 13 | – | – | 4.6 |
| March | 9°C | 2°C | 70 mm | 13 | – | – | 5.2 |
| April | 14°C | 5°C | 55 mm | 11 | – | – | 6.3 |
| May | 18°C | 9°C | 67 mm | 13 | – | – | 6.7 |
| June | 21°C | 11°C | 72 mm | 13 | – | – | 7.2 |
| July | 23°C | 14°C | 86 mm | 14 | – | – | 7.2 |
| August | 23°C | 13°C | 84 mm | 13 | – | – | 7.4 |
| September | 19°C | 10°C | 72 mm | 12 | – | – | 6.9 |
| October | 14°C | 7°C | 72 mm | 13 | – | – | 6.1 |
| November | 9°C | 4°C | 75 mm | 14 | – | – | 5.1 |
| December | 5°C | 1°C | 85 mm | 15 | – | – | 4.3 |
Frequently asked questions
How hot is Iserlohn in May?
Daytime highs average 18°C and nights about 9°C.
When is the best time to visit Iserlohn?
The best months are August, June, July, September.