Käsmu Weather in May
Käsmu in May averages 13°C (55°F) during the day and 6°C (43°F) at night. Some rainfall is typical for this time of year.
Rainfall in Käsmu in May
You can expect rain on roughly 10 days based on historical data, averaging 48 mm (1.9 in) for the month. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.
Temperature in Käsmu in May
In May, expect moderate temperatures in Käsmu, with highs of 13°C (55°F) and lows of 6°C (43°F) at night. Conditions are often most pleasant around the middle of the day. With lows around 6°C (43°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.
Sunshine in Käsmu in May
The month enjoys around 308 hours of sunshine, creating mostly sunny days despite the cool temperatures.If your ideal day consists of dry skies and pleasant temperatures, July and August typically offer the best circumstances for Käsmu.
Käsmu Temperature in May
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Chance of Rain
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Käsmu Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Käsmu - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Käsmu typically rise from around 11°C (52°F) at the start of May to approximately 15°C (59°F) by the end. Nights are cold, with lows typically ranging from 3°C (37°F) to 9°C (48°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather records for Käsmu in May
Browse day-by-day weather records for Käsmu spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Käsmu historical weather extremes in May
Our historical data for Käsmu spans 1976 to 2026, revealing these weather extremes.
- The hottest May day on record in Käsmu reached 28°C (82°F) (May 26, 2003).
- The coldest May day was on May 3, 1981, with a maximum of 3°C (37°F).
- Käsmu registered its coldest May night on May 12, 1999, with temperatures dropping to -5°C (23°F).
Best Places in Estonia in May
Find out more about the weather in Estonia and which places have the best travel conditions in this month. See all of Estonia in May →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Käsmu in May
The weather can swing between comfortable and chilly in May, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Wet weather is likely, so pack waterproof gear for multiple rainy days. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
What To Do in Käsmu in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming4/10 -
Cycling6/10 -
Walking6/10 -
Camping5/10 -
Outdoor sports6/10
Käsmu 3-Day Forecast
Temperature Rainfall Sunshine Humidity
See the full Käsmu climate overview or explore weather in Estonia.
Popular in May
Where to go in May - average daytime high across popular destinations.
Otepää
17°C (63°F) Tartu17°C (63°F) Pärnu
18°C (64°F) Narva16°C (61°F) Tallinn15°C (59°F) Kuressaare15°C (59°F) Narva-Jõesuu15°C (59°F) Haapsalu
12°C (54°F) 
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