Finland · 1991–2020 normal

Jollas in
September.

Typical September weather in Jollas: 14.4°C by day, 10.5°C at night, 47 mm of rain over 8 wet days. These are measured 1991–2020 station normals, not a forecast.

Typical high14.4°C
Typical low10.5°C
Rain47 mm
Wet days8

Comfort score 54 this month (July leads the year at 81). Daylight is calculated as 12 h 46 from latitude 60.16°. Open-water sea temperature is 14.4°C (5 km from the place centre).

The evidence behind this page

One month,
from the same station.

Place identity
GeoNames 655661
NOAA station
FIE00142311 · HELSINKI ISOSAARI
Station distance
6.5 km from the place centre
Coverage
Good coverage · 18 usable years
Important limit
Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.