Isojoki
Isojoki is a village in South Ostrobothnia, Finland. It has a population of about 1,771 (2025). The climate is classified as warm-summer humid continental (Köppen Dfb), with warm summers, cold winters and precipitation in every season.
Best: Jun–Aug. Warmth, sunshine and dry days, month by month.
Isojoki at a glance
The months with the highest weather score
Average high in July
Average low in January
91 mm of rain
35 mm of rain
within 0.1 km
Weather in Isojoki
Now and the next ten days. The 14 and 30-day outlooks are one click away.
Rain · wind 23 km/h · humidity 89%
When to go to Isojoki
Each month's weather score (warmth, sun, dry days) with its temperatures and rain.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Score | 14 | 21 | 26 | 28 | 58 | 67 | 65 | 63 | 48 | 15 | 12 | 12 |
| High | -2° | -2° | 2° | 8° | 15° | 20° | 22° | 20° | 15° | 7° | 2° | -1° |
| Low | -9° | -10° | -7° | -2° | 3° | 8° | 11° | 10° | 6° | 1° | -2° | -6° |
| Rain (mm) | 60 | 44 | 43 | 35 | 48 | 75 | 91 | 96 | 74 | 86 | 75 | 70 |
| Wet days | 14 | 11 | 10 | 11 | 11 | 13 | 16 | 15 | 12 | 14 | 15 | 15 |
What's on in Isojoki
Concerts, football matches, the public holidays ahead and the town's festivals through the year.
Monuments and museums in Isojoki
Outdoors around Isojoki
Hiking routes from the town, and what there is to do within 15 km: huts, viewpoints, climbing, camping, ski areas and dive sites.
Nature around Isojoki
Wildlife in October
The birds and mammals of Finland seen most this month, compared with the rest of their year.
The sky over Isojoki
Towns and villages around Isojoki
Each with its own page: weather, climate and the best time to visit.
Isojoki from above
Postal codes
Getting to Isojoki
Places near Isojoki
Places with a climate like Isojoki
Matched month by month on temperature, rain and sunshine.
