Sammallahdenmäki
Rauma, Finland UNESCO World Heritage Site
Sammallahdenmäki is a UNESCO World Heritage Site and a registered archaeological site in Finland. This cemetery and grave cairn site is the 17th most looked-up sight in the country on English Wikipedia.
Planning a visit
The warmest months are July and August, with daily highs of 20 °C and 19 °C. Rain is recorded in every month; August is the wettest with 84 mm, while June and September see 64 mm. The coldest temperatures occur in February, with a high of -3 °C and a low of -8 °C. Sammallahdenmäki is 202 km from Helsinki. Travelers can reach the area via Pori Airport, located 38 km away, or Turku Airport, which is 72 km away.
This site can be combined with visits to Old Rauma, 14.1 km away, or the Olkiluoto Nuclear Power Plant, 22.2 km away. There is no cost for entry, but guiding is available for €2 per person.
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 | 1 | 7 | 13 | 17 | 20 | 19 | 14 | 8 | 3 | 0 |
| Average low, °C | -6 | -8 | -5 | 0 | 5 | 10 | 13 | 13 | 9 | 4 | -1 | -4 |
| Rainfall, mm | 53 | 36 | 38 | 35 | 39 | 64 | 77 | 84 | 64 | 77 | 67 | 61 |
| Rainy days | 15 | 11 | 10 | 9 | 8 | 9 | 13 | 13 | 11 | 14 | 14 | 15 |
Temperatures and rainfall: 1981–2010 averages for this spot (4 km grid), from CHELSA. Rainy days: 2015–2024, NASA POWER.
