Suomenlinna Sveaborg
Helsinki, Finland UNESCO World Heritage Site
Suomenlinna is a sea fort, fortress, and fortress island located in Helsinki, Finland. It is designated as a UNESCO World Heritage Site and is part of Krepost Sveaborg. Established in 1748, it is one of the sights managed by the Ehrensvärd Society.
Planning a visit
The warmest months to visit are July, with average daily highs of 20 °C and lows of 15 °C, and August, with highs of 19 °C and lows of 14 °C. January and February are the coldest months, featuring daily highs between -2 °C and -4 °C and lows dropping to -8 °C. Rain falls throughout the year, with October and November seeing up to 16 rainy days per month. Wheelchair access is not available at the site.
The nearest airport is Helsinki Vantaa Airport, located 19 km away, and the site is 4 km from Helsinki. Nearby points of interest include Uspenski Cathedral at 3.1 km, Helsinki Cathedral at 3.5 km, Temppeliaukio Church at 4.6 km, and both the Helsinki Olympic Stadium and Sibelius Monument at 5.8 km.
Weather by month
The warmest month is July, with an average high of 20 °C. Rain is spread fairly evenly through the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average high, °C | -2 | -3 | 0 | 6 | 12 | 16 | 20 | 19 | 14 | 9 | 3 | 0 |
| Average low, °C | -7 | -8 | -5 | 0 | 6 | 10 | 15 | 14 | 10 | 5 | 0 | -4 |
| Rainfall, mm | 46 | 31 | 36 | 32 | 37 | 56 | 64 | 79 | 61 | 78 | 70 | 57 |
| Rainy days | 15 | 12 | 11 | 9 | 7 | 8 | 10 | 12 | 11 | 14 | 16 | 16 |
Temperatures and rainfall: 1981–2010 averages for this spot (4 km grid), from CHELSA. Rainy days: 2015–2024, NASA POWER.
