All data are in degrees Fahrenheit

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Water temperature in Raahe

Detailed information about the current water temperature in Raahe. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Sea temperature in Raahe now

57.8

°F

September 18, 13:33

Trend:

stable

Yesterday:

57.7°F

Tomorrow:

57.6°F

Sunrise:

06:52

Sunset:

19:39

Day Length:

12 h. 47 min.

Raahe in September

Minimum:

32.0°F

Average:

32.3°F

Maximum:

33.8°F

Sea water temperature in Raahe today

As of now, in Raahe, the water temperature is 57.8°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 3.1°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to fall a bit.

Recent sea temperature and forecast

Today's water temperature is slightly lower than the average registered over the last two weeks, indicating a slight cooling trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 58.5°F on 2024, while the historical minimum was 49.4°F on 2021.

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the maximum recorded over the past years. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 56.5°F, the minimum temperature may reach 55.6°F, and the maximum might stay at 57.6°F.

Daily water temperature in Raahe

Date Current Year

actual* / forecast**

last year 10 years average
Sep 4 55.8°F 61.3°F 58.4°F
Sep 5 56.8°F 61.8°F 58.2°F
Sep 6 57.4°F 61.7°F 57.8°F
Sep 7 57.8°F 62.3°F 57.4°F
Sep 8 58.8°F 62.3°F 57.2°F
Sep 9 58.3°F 62.2°F 56.7°F
Sep 10 58.4°F 62.4°F 56.8°F
Sep 11 58.6°F 61.2°F 56.6°F
Sep 12 59.5°F 61.6°F 56.7°F
Sep 13 59.1°F 60.1°F 56.3°F
Sep 14 59.0°F 59.1°F 56.2°F
Sep 15 59.2°F 58.4°F 55.9°F
Sep 16 58.4°F 59.2°F 55.7°F
Sep 17 57.7°F 59.2°F 55.3°F
Sep 18 57.8°F 58.5°F 54.7°F
Sep 19 57.6°F 57.8°F 54.5°F
Sep 20 57.1°F 57.8°F 54.0°F
Sep 21 56.7°F 57.9°F 53.6°F
Sep 22 56.4°F 56.6°F 53.3°F
Sep 23 56.0°F 56.3°F 52.9°F
Sep 24 55.9°F 56.0°F 52.8°F
Sep 25 55.6°F 55.4°F 52.5°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Raahe by month

In an average year, Raahe offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Raahe was recorded on August 3, 2025, reaching a 72.3°F. While the coldest temperature occurred on January 1, 2022, dipping to 32.0°F. The average readings by season are 32.9°F in Winter, 34.1°F in Spring, 59.0°F in Summer, and 47.2°F in Autumn.