Hemer Weather in September
Hemer in September
The short of it: Hemer in September averages a high of 18 °C (65 °F) and a low of 9 °C (49 °F), with 79 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 79 mm · daylight 12 h 33 min
✦✦✦ Fair for a visit · best months: May & July
Thirty years of records give Hemer an average September high of 18°, a low of 9° and some 79 mm of rain. Highs fall 4° against August, to near 18°; nights run about 9°. Wet spells are common — about 79 mm, the 7th 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, Hemer runs cooler than most and drier than most in September. Iserlohn, 5 km to the WSW, sees much the same highs.
September in Hemer, by the numbers
- Warmth rank
- 4th warmest of 12
- Rain rank
- 7th wettest of 12
- Versus August
- 4° colder, 19 mm less rain
- Versus October
- 5° 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 |
|---|---|---|---|---|
| IserlohnNorth Rhine-Westphalia | 5 km WSW | 18° | 9° | 80 mm |
| UnnaNorth Rhine-Westphalia | 18 km NNW | 19° | 9° | 70 mm |
| HagenNorth Rhine-Westphalia | 21 km W | 19° | 10° | 83 mm |
| LüdenscheidNorth Rhine-Westphalia | 21 km SSW | 17° | 10° | 97 mm |
| ArnsbergNorth Rhine-Westphalia | 22 km E | 18° | 9° | 79 mm |
| DortmundNorth Rhine-Westphalia | 25 km NW | 20° | 10° | 72 mm |
| WittenNorth Rhine-Westphalia | 30 km WNW | 19° | 10° | 80 mm |
| LünenNorth Rhine-Westphalia | 30 km NNW | 20° | 10° | 68 mm |