May weather forecastGdańsk, Poland
May weather for Gdańsk, Poland: In Gdańsk, Poland, during May, the rain falls for 15.8 days and regularly aggregates up to 46mm (1.81") of precipitation. In Gdańsk, during the entire year, snow falls for 58 days and aggregates up to 437mm (17.2") of snow.
May
Weather in May
May officially heralds spring in Gdańsk. As the temperatures rise steadily, the city's beauty shines brightly under the blooming flowers. Notably, May experiences an unexpected increase in rainfall, with precipitation shooting up from 20mm (0.79") in April to 46mm (1.81"). This season invites people to take advantage of the pleasant weather conditions and explore the city's stunning architecture. Nonetheless, the beach doesn't get crowded just yet due to the relatively cooler sea temperatures.Temperature
The shift into May is accompanied by a modest temperature increase, with the average high-temperature edging up from a cool 11.8°C (53.2°F) in April to an enjoyable 16.3°C (61.3°F). In Gdańsk, the nighttime temperature averages to a frosty 7.8°C (46°F) during May.Humidity
In Gdańsk, the average relative humidity in May is 72%.Rainfall
In Gdańsk, Poland, during May, the rain falls for 15.8 days and regularly aggregates up to 46mm (1.81") of precipitation. Throughout the year, there are 172.5 rainfall days, and 497mm (19.57") of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.3 snowfall days, in May, Gdańsk aggregates 1mm (0.04") of snow. In Gdańsk, during the entire year, snow falls for 58 days and aggregates up to 437mm (17.2") of snow.Sea temperature
In Gdańsk, the average seawater temperature in May is 10.2°C (50.4°F).Note: One needs to be cautious in 10.2°C (50.4°F) waters. 13°C (55.4°F) is already forbidding, but sub-10°C (14°F) can seriously disrupt your breathing and lead to a frigid shock, considering one's well-being.
Daylight
The average length of the day in May is 16h and 4min.On the first day of the month, sunrise is at 05:06 and sunset at 20:18. On the last day of May, sunrise is at 04:18 and sunset at 21:08 CEST.
Sunshine
In May, the average sunshine is 9.1h.UV index
The average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: The UV index of 4 during May translates into the following guidance:
Prioritize safety - Recommendations to avert sunburn are shared. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Gdańsk, Poland
- Average high temperature in May: 16.3°C
The warmest month (with the highest average high temperature) is August (22.5°C).
The month with the lowest average high temperature is January (0.6°C).
- Average low temperature in May: 7.8°C
The month with the highest average low temperature is August (14.4°C).
The coldest month (with the lowest average low temperature) is January (-2.4°C).
Average pressure in May
Gdańsk, Poland
- Average pressure in May: 1015.6mbar
The month with the highest atmospheric pressure is October (1016.6mbar).
The months with the lowest atmospheric pressure are July and December (1013.2mbar).
Average wind speed in May
Gdańsk, Poland
- Average wind speed in May: 12.8km/h
The windiest month (with the highest average wind speed) is December (16.8km/h).
The calmest month (with the lowest average wind speed) is August (12.1km/h).
Average humidity in May
Gdańsk, Poland
- Average humidity in May: 72%
The months with the highest relative humidity are January, February and December (87%).
The month with the lowest relative humidity is April (71%).
Average rainfall in May
Gdańsk, Poland
- Average rainfall in May: 46mm
The wettest month (with the highest rainfall) is July (71mm).
The driest month (with the least rainfall) is April (20mm).
Average rainfall days in May
Gdańsk, Poland
- Average rainfall days in May: 15.8 days
The month with the highest number of rainy days is July (20.2 days).
The month with the least rainy days is February (8.9 days).
Average snowfall in May
Gdańsk, Poland
- Average snowfall in May: 1mm
The month with the highest snowfall is January (128mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Gdańsk, Poland
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (16.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in May
Gdańsk, Poland
- Average sea temperature in May: 10.2°C
The best month for swimming (with the highest average sea temperature) is August (19.3°C).
The coldest month (with the lowest average sea temperature) is March (2.4°C).
Average daylight in May /
Average sunshine in May
Gdańsk, Poland
- Average daylight in May: 16h and 6min
The month with the longest days is June (Average daylight: 17h and 6min).
The month with the shortest days is December (Average daylight: 7h and 24min).
- Average sunshine in May: 9h and 6min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in May
Gdańsk, Poland
- Average sunshine days in May: 12.2 days
The month with the most sunshine days is April (15 days).
The month with the least sunshine days is December (7.5 days).
Average UV index in May
Gdańsk, Poland
- Average UV index in May: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in May
Gdańsk, Poland
- Average cloud cover in May: 40
The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in May
Gdańsk, Poland
- Average visibility in May: 9km
The months with the highest visibility are June, August and September (10km).
The months with the lowest visibility are January and February (8km).





