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Mielno Weather in May
During May, Mielno experiences moderate daytime temperatures of 16°C (61°F) and cooler nights around 8°C (46°F). Some rainfall is typical during this period.
Rainfall in Mielno in May
You can expect rain on around 12 days based on historical patterns, with 59 mm (2.3 in) average for the month. 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 Mielno in May
In May, expect moderate temperatures in Mielno, with highs of 16°C (61°F) and lows of 8°C (46°F) at night. Conditions are often most pleasant around the middle of the day. Nights drop to 8°C (46°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.
Sunshine in Mielno in May
Expect a lot of sunshine this month, with about 237 hours of sun. These sunny conditions add to the overall experience.If you prefer dry days with pleasant temperatures, 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.
Mielno Temperature in May
Min Temperature
8°C (46°F)
Max Temperature
16°C (61°F)
Chance of Rain
39%
Precipitation
59 mm (2.3 in)
Rainy days
12 days
Sunshine
237 hours *
Percentage Sunshine
*
* Data from: Koszalin, Poland (11 KM, 6 Miles).
Mielno Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Mielno - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Mielno typically rise from around 14°C (57°F) at the start of May to approximately 18°C (64°F) by the end. Nights are cold, with lows typically ranging from 6°C (43°F) to 10°C (50°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 Mielno in May
Browse day-by-day weather records for Mielno spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Mielno historical weather extremes in May
Based on 50 years of weather observations in Mielno between 1976 and 2026, these are the recorded extremes.
- On May 28, 2005, temperatures climbed to 31°C (88°F), marking the warmest May day on record.
- The lowest daytime temperature in May was 2°C (36°F), recorded on May 1, 1985.
- Mielno registered its coldest May night on May 3, 2011, with temperatures dropping to -3°C (27°F).
Best Places in Poland in May
Find out more about the weather in Poland and which places have the best travel conditions in this month. See all of Poland 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 Mielno in May
The weather can be unpredictable in May, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. Rain is likely on several days, so bring a good rain jacket. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
What To Do in Mielno in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling6/10 -
Walking6/10 -
Camping4/10 -
Outdoor sports10/10
Mielno 3-Day Forecast
More climate data for Mielno
See the full Mielno climate overview or explore weather in Poland.
Popular in May
Where to go in May - average daytime high across popular destinations.
Warsaw
20°C (68°F) Poznań20°C (68°F) Kraków
20°C (68°F) Gdańsk17°C (63°F) Zakopane
16°C (61°F) Sopot
16°C (61°F) Kołobrzeg16°C (61°F) Gdynia16°C (61°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
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