Best time to visit Mariehamn

Find the best time to visit Mariehamn and plan your perfect trip in 2025/2026. Get holiday inspiration, weather guides, travel advice and find great deals.

Mariehamn by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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When is the best time to visit Mariehamn?

The best time to visit Mariehamn is July based on the following average weather conditions.

Maximum daytime temperature = 22 - 30°C [remove]
Daily hours of sunshine = 10 hours or more [remove]

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Max Day Temperature (°C)

  • -1°C maximum daytime temperature in January in Mariehamn-1
    Jan
  • -2°C maximum daytime temperature in February in Mariehamn-2
    Feb
  • 1°C maximum daytime temperature in March in Mariehamn1
    Mar
  • 6°C maximum daytime temperature in April in Mariehamn6
    Apr
  • 12°C maximum daytime temperature in May in Mariehamn12
    May
  • 17°C maximum daytime temperature in June in Mariehamn17
    Jun
  • 19°C maximum daytime temperature in July in Mariehamn19
    Jul
  • 18°C maximum daytime temperature in August in Mariehamn18
    Aug
  • 14°C maximum daytime temperature in September in Mariehamn14
    Sep
  • 9°C maximum daytime temperature in October in Mariehamn9
    Oct
  • 5°C maximum daytime temperature in November in Mariehamn5
    Nov
  • 1°C maximum daytime temperature in December in Mariehamn1
    Dec

Hours of Sunshine (daily)

  • Jan
  • Feb
  • Mar
  • Apr
  • May
  • Jun
  • Jul
  • Aug
  • Sep
  • Oct
  • Nov
  • Dec

Which is the hottest month in Mariehamn?

The hottest time of year in Mariehamn is normally July. Expect maximum daytime temperatures to reach 19°C.

Which month has the most rain in Mariehamn?

In terms of rainfall, August is usually the wettest month in Mariehamn with 64mm on average. There are normally 14 days in August with some rain.

When is it sunniest in Mariehamn?

The sunniest time of year in Mariehamn is normally June with bright sunshine on average for 47% of daylight hours; that's 9 hours of sunshine per day.

When is the sea warmest in Mariehamn?

The sea is usually at its warmest in Mariehamn in August when the water temperature reaches 17°C.

Best time to visit

The weather guide for Finland (Mariehamn) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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