Järna Weather in September
Järna in September
The short of it: Järna in September averages a high of 16 °C (62 °F) and a low of 8 °C (47 °F), with 56 mm (2.2 in) of rain and about 12 h 43 min of daylight. Rated 4 of 5 for a visit; the best months are July and August. Source: TerraClimate climate normals, 1991–2020.
Average high 16° · low 8° · rain 56 mm · daylight 12 h 43 min
✦✦✦✦ Recommended for a visit · best months: July & August
September in Järna brings afternoons near 16° and nights around 8°, with about 56 mm of rain over the month. Highs fall 5° against August, to near 16°; nights run about 8°. Rain is modest, about 56 mm, the 6th wettest month.
The sun is up for about 12 h 43 min in mid-September, 166 minutes less than a month before.
For the traveller: pack layers, a wool coat and stout boots. The Almanac rates September 4 of 5 for a visit; the finest months here are July and August.
Against its neighbours, Järna runs warmer than most and wetter than most in September. Södertälje, 12 km to the NNE, sees much the same highs.
September in Järna, by the numbers
- Warmth rank
- 4th warmest of 12
- Rain rank
- 6th wettest of 12
- Versus August
- 5° colder, 6.0 mm less rain
- Versus October
- 6° warmer
- Day–night spread
- 8°
- Snow season
- Nov–Mar
- Daylight, mid-month
- 12 h 43 min
- Average wind
- 15 km/h