May weather forecastMarstal, Denmark
May
Weather in May
May, the last month of the spring in Marstal, is a mild month, with an average temperature fluctuating between 9.2°C (48.6°F) and 13.6°C (56.5°F).Temperature
May's onset witnesses a minor shift in the average high-temperature, moving from a chilly 9.7°C (49.5°F) in April to a moderate 13.6°C (56.5°F). May sees a slight dip to an average low temperature of 9.2°C (48.6°F) from the daytime highs.Humidity
In May, the average relative humidity in Marstal is 78%.Rainfall
In Marstal, Denmark, in May, it is raining for 15.1 days, with typically 40mm (1.57") of accumulated precipitation. Throughout the year, in Marstal, there are 174.7 rainfall days, and 493mm (19.41") of precipitation is accumulated.Snowfall
May through October are months without snowfall in Marstal, Denmark.Sea temperature
In Marstal, the average seawater temperature in May is 11.5°C (52.7°F).Note: Swimming in 11.5°C (52.7°F) poses a severe threat. Even short exposure to 13°C (55.4°F) is chilling, and going below 10°C (50°F) can cause breathing irregularities and intense cold shock, based on one's stamina.
Daylight
In May, the average length of the day is 16h and 9min.On the first day of the month, sunrise is at 05:36 and sunset at 20:53. On the last day of May, in Marstal, sunrise is at 04:47 and sunset at 21:43 CEST.
Sunshine
In May, the average sunshine is 8.9h.UV index
The average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: In May, a daily UV index of 4 turns into the following recommendations:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Marstal, Denmark
- Average high temperature in May: 13.6°C
The warmest months (with the highest average high temperature) are July and August (19.8°C).
The month with the lowest average high temperature is February (2.9°C).
- Average low temperature in May: 9.2°C
The month with the highest average low temperature is August (16°C).
The coldest month (with the lowest average low temperature) is February (0.8°C).
Average pressure in May
Marstal, Denmark
- Average pressure in May: 1015.6mbar
The months with the highest atmospheric pressure are April and May (1015.6mbar).
The month with the lowest atmospheric pressure is November (1011.1mbar).
Average wind speed in May
Marstal, Denmark
- Average wind speed in May: 18.9km/h
The windiest month (with the highest average wind speed) is December (26.4km/h).
The calmest month (with the lowest average wind speed) is July (18.4km/h).
Average humidity in May
Marstal, Denmark
- Average humidity in May: 78%
The months with the highest relative humidity are January, February and December (86%).
The month with the lowest relative humidity is August (77%).
Average rainfall in May
Marstal, Denmark
- Average rainfall in May: 40mm
The wettest month (with the highest rainfall) is July (64mm).
The driest month (with the least rainfall) is April (16mm).
Average rainfall days in May
Marstal, Denmark
- Average rainfall days in May: 15.1 days
The month with the highest number of rainy days is July (18.4 days).
The month with the least rainy days is February (10 days).
Average snowfall in May
Marstal, Denmark
- Average snowfall in May: 0mm
The month with the highest snowfall is February (22mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in May
Marstal, Denmark
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in May
Marstal, Denmark
- Average sea temperature in May: 11.5°C
The best month for swimming (with the highest average sea temperature) is August (18.3°C).
The coldest month (with the lowest average sea temperature) is January (2.3°C).
Average daylight in May /
Average sunshine in May
Marstal, Denmark
- Average daylight in May: 16h and 6min
The month with the longest days is June (Average daylight: 17h and 12min).
The month with the shortest days is December (Average daylight: 7h and 18min).
- Average sunshine in May: 8h and 54min
The month with the most sunshine is June (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 12min).
Average sunshine days in May
Marstal, Denmark
- Average sunshine days in May: 13.8 days
The month with the most sunshine days is April (17.2 days).
The month with the least sunshine days is July (9.8 days).
Average UV index in May
Marstal, Denmark
- Average UV index in May: 4
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in May
Marstal, Denmark
- Average cloud cover in May: 41
The month with the most cloud cover is December (Cloud cover 70).
The months with the least cloud cover are June and August (Cloud cover 40).
Average visibility in May
Marstal, Denmark
- Average visibility in May: 10km
The months with the highest visibility are April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, March, November and December (9km).





