All data are in degrees Fahrenheit

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Water temperature in Vaasa

Detailed information about the current water temperature in Vaasa. 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 Vaasa now

60.5

°F

August 20, 07:32

Trend:

decreasing

Yesterday:

60.8°F

Tomorrow:

60.2°F

Sunrise:

05:44

Sunset:

21:28

Day Length:

15 h. 44 min.

Vaasa in August

Minimum:

32.0°F

Average:

32.3°F

Maximum:

34.5°F

Sea water temperature in Vaasa today

As of now, in Vaasa, the water temperature is 60.5°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 3.0°F lower than the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to fall a bit.

Recent sea temperature and forecast

Today's water temperature is considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 66.8°F on 2022, while the historical minimum was 59.7°F on 2019.

Over the last two weeks, the water temperature has stayed slightly lower than historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 59.2°F, the minimum temperature may reach 58.4°F, and the maximum might stay at 60.2°F.

Daily water temperature in Vaasa

Date Current Year

actual* / forecast**

last year 10 years average
Aug 6 63.8°F 69.4°F 65.8°F
Aug 7 63.1°F 68.8°F 65.5°F
Aug 8 62.9°F 67.7°F 65.7°F
Aug 9 62.4°F 67.1°F 65.1°F
Aug 10 61.9°F 66.8°F 64.8°F
Aug 11 60.8°F 66.3°F 64.3°F
Aug 12 61.0°F 65.7°F 64.3°F
Aug 13 61.2°F 64.3°F 64.1°F
Aug 14 60.8°F 65.7°F 64.2°F
Aug 15 61.3°F 66.0°F 64.0°F
Aug 16 62.2°F 66.3°F 64.4°F
Aug 17 62.5°F 65.5°F 64.1°F
Aug 18 61.8°F 63.5°F 63.6°F
Aug 19 60.8°F 64.9°F 63.7°F
Aug 20 60.5°F 62.3°F 63.4°F
Aug 21 60.2°F 61.7°F 63.2°F
Aug 22 60.1°F 61.4°F 63.1°F
Aug 23 59.5°F 59.6°F 62.4°F
Aug 24 59.0°F 58.6°F 62.0°F
Aug 25 58.8°F 59.6°F 61.8°F
Aug 26 58.6°F 59.1°F 61.6°F
Aug 27 58.4°F 58.7°F 61.3°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 Vaasa by month

In an average year, Vaasa offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Vaasa was recorded on July 26, 2025, reaching a 74.5°F. While the coldest temperature occurred on January 1, 2018, dipping to 32.0°F. The average readings by season are 32.5°F in Winter, 37.5°F in Spring, 62.6°F in Summer, and 47.3°F in Autumn.