Altena Weather in September
Altena in September
The short of it: Altena in September averages a high of 17 °C (63 °F) and a low of 9 °C (49 °F), with 90 mm (3.5 in) of rain and about 12 h 33 min of daylight. Rated 3 of 5 for a visit; the best months are July and August. Source: TerraClimate climate normals, 1991–2020.
Average high 17° · low 9° · rain 90 mm · daylight 12 h 33 min
✦✦✦ Fair for a visit · best months: July & August
September in Altena brings afternoons near 17° and nights around 9°, with about 90 mm of rain over the month. The year turns hard here: highs drop 4° from August to about 17°, with nights near 9°. Wet spells are common — about 90 mm, the 8th wettest month.
The sun is up for about 12 h 33 min in mid-September, 121 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 July and August.
Against its neighbours, Altena runs cooler than most and wetter than most in September. Lüdenscheid, 9 km to the SSW, sees much the same highs.
September in Altena, by the numbers
- Warmth rank
- 4th warmest of 12
- Rain rank
- 8th wettest of 12
- Versus August
- 4° colder, 8.0 mm less rain
- Versus October
- 4° warmer
- Day–night spread
- 8°
- Snow season
- Dec–Mar
- Daylight, mid-month
- 12 h 33 min
- Average wind
- 12 km/h
Neighbouring Towns
September averages · distance by the crow’s flight| Town | Distance | High | Low | Rain |
|---|---|---|---|---|
| LüdenscheidNorth Rhine-Westphalia | 9 km SSW | 17° | 10° | 97 mm |
| IserlohnNorth Rhine-Westphalia | 9 km NNE | 18° | 9° | 80 mm |
| HagenNorth Rhine-Westphalia | 16 km WNW | 19° | 10° | 83 mm |
| UnnaNorth Rhine-Westphalia | 27 km N | 19° | 9° | 70 mm |
| WittenNorth Rhine-Westphalia | 28 km NW | 19° | 10° | 80 mm |
| DortmundNorth Rhine-Westphalia | 28 km NNW | 20° | 10° | 72 mm |
| ArnsbergNorth Rhine-Westphalia | 30 km ENE | 18° | 9° | 79 mm |
| HattingenNorth Rhine-Westphalia | 36 km WNW | 19° | 10° | 82 mm |