Unlock deeper multi-jurisdiction research

Full sub-pages, saves, and alerts are available on paid plans.

See plans

Weather & Climate

Ii, Northern Ostrobothnia, Finland

Overview

Climate data and monthly weather averages for Ii.

Key Metrics

Annual Avg
2°C
Summer Avg
14.3°C
Winter Avg
-9.5°C
Record High
31°C
Record Low
-36.6°C
Annual Precipitation
785.8 mm
Avg Humidity
90%
Summer Humidity
81%
Winter Humidity
95%

Monthly Averages

MonthHigh (°C)Avg (°C)Low (°C)Rain (mm)Humidity (%)Sunshine (h)Wind (kph)
Jan2.1°-10.8°-30.8°55.295%334.7
Feb1.8°-10.4°-36.6°43.495%1634.1
Mar5.1°-6.3°-25.3°45.395%6032.1
Apr16.9°-16.2°47.192%10932.3
May25.3°7.2°-4.2°67.981%15232.8
Jun30.8°12.5°0.9°70.278%17027.1
Jul31°16.2°4.7°84.681%16023
Aug26.3°14.2°2.9°8085%11623.7
Sep21°9.3°-1.5°85.290%6125.1
Oct14.8°2.5°-11.1°7195%2427.4
Nov8.6°-2.8°-24.1°69.395%531.8
Dec-7.2°-31.6°66.695%137

Frequently Asked Questions

Sources: NASA POWER · Last updated: 2025

Subscribe to unlock the full sub-page depth for additional jurisdictions.

You can keep discovering Oyster publicly, but full multi-jurisdiction depth, tracking, alerts, and exports are part of paid access.