Kuivasaari
Island Island fortress and recreational islet near Helsinki
Kuivasaari sits in Uusimaa’s archipelago near Helsinki and is reached by boat; day-trippers visit for shoreline views, picnics and short coastal walks amid the outer-archipelago landscape.
How to Get to Kuivasaari #
Access is by boat from Helsinki - often arranged as guided excursions in summer. Private boats also visit the island from the city’s harbours.
Tips for Visiting Kuivasaari #
- Public guided tours are the main way civilians access the fortifications - check Helsinki tourist information for scheduled excursions in summer.
- Bring a waterproof layer: sea spray and Baltic wind are constant, even on sunny days.
Best Time to Visit Kuivasaari #
Best to visit in summer when guided tours and boat transfers to Kuivasaari run regularly.
Summer
June-August · 12-22°C
Regular guided tours operate and boat services are frequent.
Shoulder seasons
May & September · 6-16°C
Fewer crowds and dramatic coastal light, but limited services.
Weather & Climate near Kuivasaari #
Climate
Temperature & Rainfall
Temperature Range
28°
Warmest Month
-27°
Coldest Month
Monthly Conditions
January
Weather
0.0
UV Index
Low
6.4h daylight
February
Weather
0.1
UV Index
Low
8.8h daylight
March
Weather
0.2
UV Index
Low
11.6h daylight
April
Weather
0.5
UV Index
Moderate
14.4h daylight
May
Weather
1.0
UV Index
Moderate
17.0h daylight
June
Weather
1.2
UV Index
High
18.5h daylight
July
Weather
1.2
UV Index
High
17.8h daylight
August
Weather
0.8
UV Index
Moderate
15.4h daylight
September
Weather
0.4
UV Index
Low
12.7h daylight
October
Weather
0.1
UV Index
Low
9.9h daylight
November
Weather
0.0
UV Index
Low
7.2h daylight
December
Weather
0.0
UV Index
Low
5.5h daylight
