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Weather in Mariehamn for October 2026

Your guide to Mariehamn weather in October - trends and predictions

    Temperatures

  • So far, October 2026 in Mariehamn is slightly warmer than the historical average by 0.7 °C.

  • The forecast for the coming days of October 2026 predicts a temperature of 10.4 °C , which is warmer than usual.

  • In general, the average temperature in Mariehamn at the beginning of October is 12.5 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 7.6 °C by the end of October.

    • Rain 🌧️

  • The climate of Mariehamn in October is notably wet, with an average of 14 rainy days, and a total of 86.5 mm of precipitation.

    • More

  • Is October a good time to visit Mariehamn? check out the best time to travel to Mariehamn page.

Average dry days
17
Dry days
Average rainy days
14
Rainy days
Average snowy days
0
Snow days
Average temperatures
10°/8°
Temperatures
Average wind speed
38 km/h
Avg max wind
Average humidity
78 %
Avg humidity

Mariehamn Weather October

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

Temperatures trend during October in Mariehamn

See the weather trend as well as the moving average line

October weather in Mariehamn day by day

Click on a date for more information
September November
Date Weather Temperatures Rain UV More
1 Oct. Partly cloudy
Partly cloudy
 13° /12° 0.1 mm 1.7
2 Oct. Patchy rain possible
Patchy rain possible
 13° /11° 0.3 mm 1.6
3 Oct. Patchy rain possible
Patchy rain possible
 12° /11° 0.5 mm 1.5
4 Oct. Light rain
Light rain
 12° /11° 4.7 mm 1.5
5 Oct. Light rain
Light rain
 13° /10° 3.7 mm 1.4
6 Oct. Light rain
Light rain
 13° /11° 4.1 mm 1.4
7 Oct. Light rain shower
Light rain shower
 12° /9° 1.5 mm 1.3
8 Oct. Light rain
Light rain
 12° /10° 3.6 mm 1.3
9 Oct. Moderate rain
Moderate rain
 11° /9° 11.1 mm 1.2
10 Oct. Light rain
Light rain
 11° /9° 9 mm 1.2
11 Oct. Light rain
Light rain
 12° /9° 4.4 mm 1.1
12 Oct. Light rain
Light rain
 11° /8° 5.8 mm 1.1
13 Oct. Light rain
Light rain
 10° /8° 3.1 mm 1
14 Oct. Light drizzle
Light drizzle
 11° /9° 2.4 mm 1
15 Oct. Light drizzle
Light drizzle
 10° /8° 0.4 mm 1
16 Oct. Patchy rain possible
Patchy rain possible
 10° /8° 0.4 mm 0.9
17 Oct. Patchy rain possible
Patchy rain possible
 9° /8° 1 mm 0.9
18 Oct. Light rain shower
Light rain shower
 8° /7° 0.6 mm 0.8
19 Oct. Patchy rain possible
Patchy rain possible
 8° /7° 0.4 mm 0.8
20 Oct. Patchy rain possible
Patchy rain possible
 9° /7° 0.1 mm 0.8
21 Oct. Patchy rain possible
Patchy rain possible
 10° /8° 0.5 mm 0.7
22 Oct. Light rain shower
Light rain shower
 10° /9° 1.2 mm 0.7
23 Oct. Light rain
Light rain
 10° /8° 3 mm 0.7
24 Oct. Patchy rain possible
Patchy rain possible
 9° /7° 0.7 mm 0.6
25 Oct. Light rain
Light rain
 11° /9° 4.2 mm 0.5
26 Oct. Patchy rain possible
Patchy rain possible
 11° /9° 2.4 mm 0.4
27 Oct. Sunny
Sunny
 11° /8° 0.2 mm 0.6
28 Oct. Patchy rain possible
Patchy rain possible
 11° /10° 1.2 mm 0.5
29 Oct. Sunny
Sunny
 10° /9° 0 mm 3
30 Oct. Sunny
Sunny
 10° /8° 0 mm 3
31 Oct. Patchy rain possible
Patchy rain possible
 9° /8° 1.8 mm 2
Next
Important Notice
Our weather forecast for Mariehamn in October 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 October - FAQ

What are the expected maximum and minimum temperatures in Mariehamn during October?
During October, expect a variety of temperatures with highs around 10° and lows near 8°, suitable for diverse activities and preferences.

How much rainfall should be expected in Mariehamn during October?
Moderate rainfall is anticipated in Mariehamn during October, with a total of 86.5 mm spread over approximately 14 days. Considering plans for rainy days is advisable.

Will it snow in Mariehamn in October 2026?
Mariehamn typically sees 0.1 cm of snowfall during October.

What are the typical wind conditions in Mariehamn during October?
The average wind speed in Mariehamn during October is 38 km/h, suggesting breezy to windy conditions, depending on your activities.

October rainfall patterns in Mariehamn

Explore the daily rainfall trends and prepare for Mariehamns October weather 💧
Typically, Mariehamn has 14 rainy days in October with a total of 86.5 mm of rainfall.
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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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