Iserlohn Weather in September
Iserlohn in September
The short of it: Iserlohn in September averages a high of 18 °C (65 °F) and a low of 9 °C (49 °F), with 80 mm (3.1 in) of rain and about 12 h 33 min of daylight. Rated 3 of 5 for a visit; the best months are May and July. Source: TerraClimate climate normals, 1991–2020.
Average high 18° · low 9° · rain 80 mm · daylight 12 h 33 min
✦✦✦ Fair for a visit · best months: May & July
September in Iserlohn brings afternoons near 18° and nights around 9°, with about 80 mm of rain over the month. The year turns hard here: highs drop 4° from August to about 18°, with nights near 9°. Wet spells are common — about 80 mm, the 6th wettest month.
The sun is up for about 12 h 33 min in mid-September, 122 minutes less than a month before.
For the traveller: pack layers, a wool coat and stout boots, and an oilskin besides. The Almanac rates September 3 of 5 for a visit; the finest months here are May and July.
Against its neighbours, Iserlohn runs cooler than most and about as wet in September. Hagen, 16 km to the W, sees much the same highs.
September in Iserlohn, by the numbers
- Warmth rank
- 4th warmest of 12
- Rain rank
- 6th wettest of 12
- Versus August
- 4° colder, 21 mm less rain
- Versus October
- 4° warmer
- Day–night spread
- 9°
- Snow season
- Dec–Feb
- Daylight, mid-month
- 12 h 33 min
- Average wind
- 11 km/h
Neighbouring Towns
September averages · distance by the crow’s flight| Town | Distance | High | Low | Rain |
|---|---|---|---|---|
| HagenNorth Rhine-Westphalia | 16 km W | 19° | 10° | 83 mm |
| UnnaNorth Rhine-Westphalia | 18 km N | 19° | 9° | 70 mm |
| LüdenscheidNorth Rhine-Westphalia | 18 km SSW | 17° | 10° | 97 mm |
| DortmundNorth Rhine-Westphalia | 23 km NW | 20° | 10° | 72 mm |
| WittenNorth Rhine-Westphalia | 25 km WNW | 19° | 10° | 80 mm |
| ArnsbergNorth Rhine-Westphalia | 26 km E | 18° | 9° | 79 mm |
| LünenNorth Rhine-Westphalia | 29 km NNW | 20° | 10° | 68 mm |
| Castrop-RauxelNorth Rhine-Westphalia | 34 km NW | 20° | 10° | 74 mm |