worldweather11°Ccooler than usual
usually 12°C–17°C
cooler than 89% of similar days
night: near normal
rain: typical rainfall
wind: exceptionally strong
Weather in Oulu - 14-day forecast
Detailed weather forecast for Oulu, Finland: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Oulu
today🌧️
11°💧 1.3 mm
Sun🌧️
7°💧 1.5 mm
Mon🌤️
9°💧 4.3 mm
Tue🌧️
12°💧 6.9 mm
Wed🌧️
14°💧 4.7 mm
Thu🌧️
13°💧 0.5 mm
Fri🌧️
12°💧 0.1 mm
Sat🌤️
13°💧 0.3 mm
Forecast vs 1991-2020 climate normal
NASA POWERHow does the current forecast compare with normal?
We compare the coming days with weather usually observed at this time of year.
Sunday 6 Sept in Oulu, the forecast high is 7°C. Typical daytime temperatures at this time of year range from 12°C to 17°C, so it will be exceptionally cool. It is cooler than 99% of similar days.
7°Cexceptionally cool
usually 12°C–17°C
cooler than 99% of similar days
night: cooler than usual
rain: typical rainfall
wind: exceptionally strong
9°Cexceptionally cool
usually 12°C–17°C
cooler than 97% of similar days
night: cooler than usual
rain: more rain than usual
wind: exceptionally strong
12°Ccooler than usual
usually 11°C–16°C
cooler than 76% of similar days
night: exceptionally warm
rain: exceptionally wet
wind: exceptionally strong
14°Cnear normal
usually 11°C–16°C
night: exceptionally warm
rain: more rain than usual
wind: exceptionally strong
13°Cnear normal
usually 11°C–16°C
night: exceptionally warm
rain: typical rainfall
wind: typical
12°Cnear normal
usually 11°C–16°C
night: exceptionally warm
rain: less rain than usual
wind: stronger than usual
How warm was this week in previous years?
Each bar shows the average daily high during the same 7-day period in each year.
cooler yearstypical rangewarmer years2026 forecastcurrent forecast
From 1981 to 2025, the 5-11 Sept period averaged 14°C by day. The coolest year was 1991 (10°C) and the warmest was 2024 (21°C). The current forecast averages 11°C - lower than in 89% of historical years.
Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.
Weather warnings - Oulu
No active weather warnings for Oulu (region: Pohjois-Pohjanmaa Eteläinen). The national weather service is not forecasting dangerous conditions.
14-day forecast - Oulu
Oulu 30 & 45-day weather - long-range outlook
Next 16 days · forecast
11°
around 10° at night · days with rain: 10
Weeks 3-4 · avg for September
14°
around 7° at night · rain chance 53%
Weeks 5-7 · avg for October
6°
around 1° at night · rain chance 52%
The 30 & 45-day outlook for Oulu: the next 16 days are a numerical forecast updated daily - on average 11° by day and 10° at night. Further out we rely on multi-year climate averages: around 14° in September, and about 6° in October. Forecasts beyond two weeks are indicative only.
Day-by-day forecast for Oulu
Saturday5 September 2026
🌧️11°light rain
Sunday6 September 2026
🌧️7°light rain
Monday7 September 2026
🌤️9°scattered clouds
Tuesday8 September 2026
🌧️12°moderate rain
Wednesday9 September 2026
🌧️14°light rain
Thursday10 September 2026
🌧️13°light rain
Friday11 September 2026
🌧️12°light rain
Saturday12 September 2026
🌤️13°a few clouds
Sunday13 September 2026
🌧️13°light rain
Monday14 September 2026
🌧️9°light rain
Tuesday15 September 2026
🌧️9°light rain
Wednesday16 September 2026
🌧️11°moderate rain
Thursday17 September 2026
🌧️8°light rain
Friday18 September 2026
🌧️8°light rain
Saturday19 September 2026
🌧️14°light rain
Sunday20 September 2026
☀️18°clear sky
UV index in Oulu - is it safe to sunbathe?
Today the UV index in Oulu is 1 (low). You can safely stay outside. Sunscreen only matters for very long exposure.
Sea temperature - Oulu
Water today
16°C
Week avg
15°C
Waves today
0 m
How's the water?
cold
16-day sea temperature forecast:
Average sea temperature through the year:
Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.
Air quality and smog in Oulu
Air quality in Oulu is currently very good. Fine particulate PM2.5: 1.5 µg/m³, PM10: 1.8 µg/m³.
| City | PM2.5 (µg/m³) | PM10 (µg/m³) | Air quality |
|---|---|---|---|
| Oulu | 1.5 | 1.8 | very good |
Based on PM2.5 thresholds. Station readings, updated daily (last reading: 2026-09-05, 04:00).
Oulu weather through the year
Warmest, driest months on average: May, June, July, August.
Upcoming public holidays in Finland: All Saints' Day — 31 October · Independence Day — 6 December · Christmas Eve — 24 December.
Nearby and related places
FAQ - Oulu weather
What is the weather like in Oulu today?
Today it is about 11° during the day and 8° at night, light rain.
How far ahead can I check the forecast for Oulu?
This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.