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Weather in Mariehamn for August 2025

Your guide to Mariehamn weather in August - trends and predictions

    Official Weather Alert ⚠️

  • Maastopalovaroitus - See hour by hour.

    • Temperatures

  • Until now, August 2025 in Mariehamn has been nearly identical to the historical average, with a temperature of 17.5 °C (showing only a slight deviation of -0.4 °C).

  • Expect cooler weather in the next days in Mariehamn with the forecast suggesting a temperature of 16.2 °C, lower than the historical average.

  • In general, the average temperature in Mariehamn at the beginning of August is 18 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 16.4 °C by the end of August.

    • Rain 🌧️

  • Mariehamn in August brings notable rainfall, with an average of 19 rainy days and a total precipitation of 98.1 mm.

Average dry days
12
Dry days
Average rainy days
19
Rainy days
Average snowy days
0
Snow days
Average temperatures
17°/16°
Temperatures
Average wind speed
31 km/h
Avg max wind
Average humidity
83 %
Avg humidity

Mariehamn Weather August

Move between months or click on a day
July
September
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Light rain shower
17°
2
Moderate rain at times
17°
3
Moderate or heavy rain shower
18°
4
Patchy rain possible
18°
5
Patchy rain possible
18°
6
Moderate or heavy rain shower
19°
7
Moderate or heavy rain shower
19°
8
Moderate or heavy rain shower
18°
9
Patchy rain possible
18°
10
Moderate rain at times
18°
11
Moderate or heavy rain shower
17°
12
Cloudy
17°
13
Weather Alert Sunny
18°
14
Weather Alert Sunny
19°
15
Weather Alert Moderate rain
18°
16
Weather Alert Sunny
16°
17
Weather Alert Partly cloudy
17°
18
Cloudy
15°
19
Patchy rain possible
15°
20
Patchy rain possible
14°
21
Patchy rain possible
15°
22
Patchy rain possible
16°
23
Patchy rain possible
16°
24
Sunny
16°
25
Partly cloudy
16°
26
Partly cloudy
16°
27
Patchy rain possible
17°
28
Light rain shower
16°
29
Overcast
17°
30
Light rain shower
17°
31
Light rain shower
16°

Temperatures trend during August in Mariehamn

See the weather trend as well as the moving average line

August weather in Mariehamn day by day

Click on a date for more information
July September
Date Weather Temperatures Rain UV More
1 Aug. Light rain shower
Light rain shower
 17° /15° 2.9 mm 4
2 Aug. Moderate rain at times
Moderate rain at times
 17° /16° 4.5 mm 4
3 Aug. Moderate or heavy rain shower
Moderate or heavy rain shower
 18° /16° 3.4 mm 4
4 Aug. Patchy rain possible
Patchy rain possible
 18° /16° 0.5 mm 4
5 Aug. Patchy rain possible
Patchy rain possible
 18° /16° 2 mm 4
6 Aug. Moderate or heavy rain shower
Moderate or heavy rain shower
 19° /16° 6.1 mm 4
7 Aug. Moderate or heavy rain shower
Moderate or heavy rain shower
 19° /16° 7.2 mm 5
8 Aug. Moderate or heavy rain shower
Moderate or heavy rain shower
 18° /16° 3.6 mm 4
9 Aug. Patchy rain possible
Patchy rain possible
 18° /16° 1.3 mm 4
10 Aug. Moderate rain at times
Moderate rain at times
 18° /15° 6 mm 4
11 Aug. Moderate or heavy rain shower
Moderate or heavy rain shower
 17° /14° 2.7 mm 4
12 Aug. Cloudy
Cloudy
 17° /14° 0.5 mm 4
13 Aug. Sunny
Sunny
 18° /17° 0 mm 1.3
14 Aug. Sunny
Sunny
 19° /18° 0 mm 1.3
15 Aug. Moderate rain
Moderate rain
 18° /17° 5.7 mm 0.6
16 Aug. Sunny
Sunny
 16° /15° 0 mm 5
17 Aug. Partly cloudy
Partly cloudy
 17° /16° 0 mm 5
18 Aug. Cloudy
Cloudy
 15° /14° 0 mm 3
19 Aug. Patchy rain possible
Patchy rain possible
 15° /13° 2.1 mm 3
20 Aug. Patchy rain possible
Patchy rain possible
 14° /13° 0.8 mm 3
21 Aug. Patchy rain possible
Patchy rain possible
 15° /14° 2.4 mm 3
22 Aug. Patchy rain possible
Patchy rain possible
 16° /15° 0.1 mm 4
23 Aug. Patchy rain possible
Patchy rain possible
 16° /15° 0.9 mm 4
24 Aug. Sunny
Sunny
 16° /15° 0 mm 5
25 Aug. Partly cloudy
Partly cloudy
 16° /16° 0 mm 5
26 Aug. Partly cloudy
Partly cloudy
 16° /16° 0 mm 5
27 Aug. Patchy rain possible
Patchy rain possible
 17° /15° 2.2 mm 5
28 Aug. Light rain shower
Light rain shower
 16° /15° 9.6 mm 4
29 Aug. Overcast
Overcast
 17° /15° 0 mm 5
30 Aug. Light rain shower
Light rain shower
 17° /15° 7 mm 4
31 Aug. Light rain shower
Light rain shower
 16° /14° 2.7 mm 4
Next
Important Notice
Our weather forecast for Mariehamn in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Mariehamn forecast closer to your planned date for the most up-to-date weather information.
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Mariehamn in August - FAQ

What are the expected maximum and minimum temperatures in Mariehamn during August?
During August, expect a variety of temperatures with highs around 17° and lows near 16°, suitable for diverse activities and preferences.
How much rainfall should be expected in Mariehamn during August?
Moderate rainfall is anticipated in Mariehamn during August, with a total of 98.1 mm spread over approximately 19 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Mariehamn during August?
The average wind speed in Mariehamn during August is 31 km/h, suggesting breezy to windy conditions, depending on your activities.

August rainfall patterns in Mariehamn

Explore the daily rainfall trends and prepare for Mariehamns August weather 💧

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Location coordinates Where is Mariehamn?

Get accurate weather forecasts for Mariehamn, located at latitude 60.097 and longitude 19.935. Stay updated with localized weather information tailored for Mariehamn.

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