Measurements:
°C
°F
CURRENT WEATHER
23:19
Oulu
54°F
N 11 mph
Feels like: 50°F
Precip: 36%
World Resorts Finland Oulu Weather

7 Day Weather Forecast

09.08
tue
DAY
58°F
N 17 mph
precip
36%
NIGHT
54°F
N 11 mph
precip
36%
09.09
wed
DAY
58°F
NE 8 mph
precip
33%
NIGHT
54°F
W 6 mph
precip
39%
09.10
thu
DAY
56°F
N 16 mph
precip
34%
NIGHT
52°F
SW 10 mph
precip
69%
09.11
fri
DAY
54°F
E 8 mph
precip
51%
NIGHT
52°F
NE 9 mph
precip
29%
09.12
sat
DAY
50°F
NE 11 mph
precip
75%
NIGHT
48°F
N 6 mph
precip
29%
09.13
sun
DAY
56°F
N 13 mph
precip
17%
NIGHT
54°F
NE 11 mph
precip
13%
09.14
mon
DAY
54°F
E 17 mph
precip
5%
NIGHT
50°F
E 9 mph
precip
11%

Oulu Sea Water Temperature in September, °F

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Oulu was 13.7°F. The maximum and minimum values were 10.0°F and 16.2°F respectively.

Oulu on the Weather Map

Best Time to Visit Oulu
The most sunny months:
July 12 days
June 11 days
May 10 days
The most warm months:
July 68.7 °F
August 65.3 °F
June 60.8 °F
Warmest sea temperature:
July 64.1 °F
August 63.3 °F
June 55.7 °F
The most cold months:
January 14.1 °F
February 17.5 °F
December 22.2 °F
The most rainy months:
August 5 days
July 4 days
June 3 days
The most windy months:
November 9 mph
October 9 mph
December 9 mph
more details