Östhammar Weather in September
Östhammar in September
The short of it: Östhammar in September averages a high of 16 °C (60 °F) and a low of 8 °C (46 °F), with 51 mm (2.0 in) of rain and about 12 h 45 min of daylight. Rated 3 of 5 for a visit; the best months are June and May. Source: TerraClimate climate normals, 1991–2020.
Average high 16° · low 8° · rain 51 mm · daylight 12 h 45 min
✦✦✦ Fair for a visit · best months: June & May
Thirty years of records give Östhammar an average September high of 16°, a low of 8° and some 51 mm of rain. Highs fall 5° against August, to near 16°; nights run about 8°. Rain is modest, about 51 mm, the 7th wettest month.
The sun is up for about 12 h 45 min in mid-September, 174 minutes less than a month before.
For the traveller: pack layers, a wool coat and stout boots. The Almanac rates September 3 of 5 for a visit; the finest months here are June and May.
Against its neighbours, Östhammar runs warmer than most and wetter than most in September. Alunda, 2 km to the ENE, sees much the same highs.
September in Östhammar, by the numbers
- Warmth rank
- 4th warmest of 12
- Rain rank
- 7th wettest of 12
- Versus August
- 5° colder, 23 mm less rain
- Versus October
- 6° warmer
- Day–night spread
- 8°
- Snow season
- Nov–Mar
- Daylight, mid-month
- 12 h 45 min
- Average wind
- 15 km/h