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Kostroma Weather in May
During May, Kostroma experiences pleasant daytime temperatures of 19°C (66°F) and cooler nights around 7°C (45°F). Expect quite a bit of rainfall. Around 61 mm (2.4 in) is typical.
Rainfall in Kostroma in May
Historically, May sees about 13 days of rain, with a monthly average of 61 mm (2.4 in). Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.
Temperature in Kostroma in May
Kostroma in May gets highs of 19°C (66°F) during the day and drops to 7°C (45°F) at night. Conditions are often most pleasant around the middle of the day. Nights drop to 7°C (45°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.
Sunshine in Kostroma in May
There are approximately 269 hours of sunshine this month, resulting in mostly clear days.If you prefer dry days with pleasant temperatures, June, July and August typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Kostroma Temperature in May
Min Temperature
7°C (45°F)
Max Temperature
19°C (66°F)
Chance of Rain
44%
Precipitation
61 mm (2.4 in)
Rainy days
13 days
Humidity
64%
Sunshine
269 hours
Percentage Sunshine
Kostroma Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Kostroma - and find the best time to visit.
Historical weather records for Kostroma in May
Browse day-by-day weather records for Kostroma spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Kostroma historical weather extremes in May
The extremes listed below come from historical weather data collected in Kostroma from 2006 through 2026.
- On May 28, 2007, temperatures climbed to 33°C (91°F), marking the warmest May day on record.
- The lowest overnight temperature recorded in May was -5°C (23°F) (May 7, 2024).
- The wettest day in May Kostroma was on May 5, 2014 with 31 mm (1.2 in) of precipitation.
Best Places in Russia in May
Find out more about the weather in Russia and which places have the best travel conditions in this month. See all of Russia in May →
perfect weather
pleasant
tolerable
unpleasant
poor
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 Kostroma in May
Pleasant temperatures in May mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Rain gear is recommended, you can expect wet weather on multiple days. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
What To Do in Kostroma in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling10/10 -
Walking10/10 -
Camping4/10 -
Outdoor sports10/10
Kostroma 3-Day Forecast
More climate data for Kostroma
Temperature Rainfall Sunshine Humidity
See the full Kostroma climate overview or explore weather in Russia.
Popular in May
Where to go in May - average daytime high across popular destinations.
Gelendzhik
20°C (68°F) Anapa
20°C (68°F) Sochi
20°C (68°F) Adler19°C (66°F) Moscow20°C (68°F) Kazan20°C (68°F) Yekaterinburg18°C (64°F) Saint Petersburg16°C (61°F) Bucket list
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