Ostrołęka Weather in September
Ostrołęka in September
The short of it: Ostrołęka in September averages a high of 19 °C (67 °F) and a low of 9 °C (48 °F), with 41 mm (1.6 in) of rain and about 12 h 35 min of daylight. Rated 5 of 5 for a visit; the best months are September and June. Source: TerraClimate climate normals, 1991–2020.
Average high 19° · low 9° · rain 41 mm · daylight 12 h 35 min
✦✦✦✦✦ Recommended for a visit · best months: September & June
September in Ostrołęka brings afternoons near 19° and nights around 9°, with about 41 mm of rain over the month. Highs fall 6° against August, to near 19°; nights run about 9°. Rain is modest, about 41 mm, the 5th wettest month.
The sun is up for about 12 h 35 min in mid-September, 130 minutes less than a month before.
For the traveller: pack layers, a wool coat and stout boots. The Almanac rates September 5 of 5 for a visit; it is the best month of the year to come.
Against its neighbours, Ostrołęka runs warmer than most and about as wet in September. Rzekuń, 5 km to the SE, sees much the same highs.
September in Ostrołęka, by the numbers
- Warmth rank
- 5th warmest of 12
- Rain rank
- 5th wettest of 12
- Versus August
- 6° colder, 13 mm less rain
- Versus October
- 6° warmer
- Day–night spread
- 10°
- Snow season
- Dec–Mar
- Daylight, mid-month
- 12 h 35 min
- Average wind
- 10 km/h