🇦🇽 Weather in Mariehamn
Map Overlays:
Hourly Forecast for Mariehamn
10:00
16°
25%
11:00
16°
16%
12:00
16°
16%
13:00
16°
16%
14:00
17°
12%
15:00
17°
11%
16:00
17°
12%
17:00
17°
11%
18:00
18°
8%
19:00
18°
8%
20:00
18°
9%
21:00
18°
10%
22:00
18°
11%
23:00
17°
13%
00:00
17°
14%
01:00
17°
14%
02:00
17°
13%
03:00
17°
11%
04:00
17°
12%
05:00
16°
12%
06:00
16°
11%
07:00
16°
12%
08:00
16°
11%
09:00
17°
10%
14-Day Forecast for Mariehamn
2026-07-10
Partly Cloudy
18° /
15°
2026-07-11
Partly Cloudy
19° /
16°
2026-07-12
Partly Cloudy
18° /
16°
2026-07-13
Sunny
17° /
16°
2026-07-14
Sunny
18° /
16°
2026-07-15
Sunny
19° /
17°
2026-07-16
Sunny
20° /
18°
Additional Forecasts for Mariehamn
Air Quality
💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 108.0 μg/m³
O₃ (Ozone) 51.0 μg/m³
NO₂ (Nitrogen Dioxide) 1.8 μg/m³
SO₂ (Sulphur Dioxide) 0.2 μg/m³
PM2.5 (Fine particles) 2.6 μg/m³
PM10 (Coarse particles) 3.1 μg/m³
Historical Weather
Weather Forecasts for Other Cities in Åland Islands
Weather in Mariehamn — FAQ
Answers refreshed each request based on current conditions in Mariehamn.
What is the weather like right now in Mariehamn?
Right now in Mariehamn, Åland Islands the temperature is 18.0°C (feels like 18.0°C), with partly cloudy. Relative humidity is 83% and wind is 10.8 km/h.
What is today's high and low temperature in Mariehamn?
Today's forecast high in Mariehamn is 17.8°C and the overnight low is 15.4°C. The diurnal range — high minus low — depends on cloud cover; clear days swing more than overcast ones.
Will it rain in Mariehamn today?
The chance of precipitation in Mariehamn today is 14%. Forecast accuracy is highest within the next 6 hours and decreases steadily out to 14 days.
How often does the weather here update?
Current observations refresh every 15-60 minutes from the nearest monitoring stations operated by national meteorological agencies. The hourly forecast updates approximately every hour; the 7- and 14-day outlook is recomputed several times per day.
What does 'feels like' temperature mean?
Feels-like (apparent) temperature accounts for humidity, wind chill and direct sunshine — variables that change how the human body perceives heat or cold. On hot, humid days it can be 3-7°C above the actual reading; on cold windy days it can be 5-15°C below.
Why does the temperature in Mariehamn differ from nearby cities?
Even short distances can change temperatures noticeably. Mariehamn's reading reflects altitude, proximity to large bodies of water, urban heat island effects, and the exact location of the monitoring stations supplying the data. Coastal cities are typically milder and more humid than inland equivalents.