May weather forecastTrollhättan, Sweden
May
Weather in May
With an average high temperature of 15.3°C (59.5°F), May fuels the advent of summer. This period is ideal for city tours, with longer daylight hours and a scenic landscape. Every corner of Trollhättan brims with the vibrant colors of Spring, making for picturesque views. The end of Spring also marks an increase in rainfall, with 37mm (1.46") of precipitation expected. Sunlight illuminates the city for 16.8 hours per day, making for longer, sunny days.Temperature
The commencement of May sees a minor shift in the average high-temperature, moving from a fresh 10.6°C (51.1°F) in April to a refreshing 15.3°C (59.5°F). Trollhättan witnesses an average low-temperature of 6.8°C (44.2°F) throughout the month of May.Humidity
The least humid month is May, with an average relative humidity of 71%.Rainfall
In May, in Trollhättan, the rain falls for 15.3 days. Throughout May, 37mm (1.46") of precipitation is accumulated. In Trollhättan, during the entire year, the rain falls for 170 days and collects up to 502mm (19.76") of precipitation.Snowfall
Months with snowfall in Trollhättan are January through May, October through December. May is the last month it regularly snows in Trollhättan. During 0.3 snowfall days, in May, Trollhättan aggregates 2mm (0.08") of snow. Throughout the year, there are 41.6 snowfall days, and 307mm (12.09") of snow is accumulated.Daylight
In Trollhättan, the average length of the day in May is 16h and 48min.On the first day of May, sunrise is at 05:15 and sunset at 21:00. On the last day of the month, sunrise is at 04:15 and sunset at 22:01 CEST.
Sunshine
In Trollhättan, the average sunshine in May is 9h.UV index
In Trollhättan, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: In May, the average maximum UV index of 4 translates into the following recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. 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
Trollhättan, Sweden
- Average high temperature in May: 15.3°C
The warmest month (with the highest average high temperature) is July (20.8°C).
The month with the lowest average high temperature is January (0.6°C).
- Average low temperature in May: 6.8°C
The month with the highest average low temperature is July (12.4°C).
The coldest month (with the lowest average low temperature) is February (-2.9°C).
Average pressure in May
Trollhättan, Sweden
- Average pressure in May: 1014.4mbar
The months with the highest atmospheric pressure are April and May (1014.4mbar).
The month with the lowest atmospheric pressure is December (1008.4mbar).
Average wind speed in May
Trollhättan, Sweden
- Average wind speed in May: 12.3km/h
The windiest month (with the highest average wind speed) is December (14.9km/h).
The calmest months (with the lowest average wind speed) are June and July (12km/h).
Average humidity in May
Trollhättan, Sweden
- Average humidity in May: 71%
The months with the highest relative humidity are January, February, November and December (88%).
The month with the lowest relative humidity is May (71%).
Average rainfall in May
Trollhättan, Sweden
- Average rainfall in May: 37mm
The wettest month (with the highest rainfall) is August (55mm).
The driest month (with the least rainfall) is April (22mm).
Average rainfall days in May
Trollhättan, Sweden
- Average rainfall days in May: 15.3 days
The month with the highest number of rainy days is August (18.9 days).
The month with the least rainy days is February (9.3 days).
Average snowfall in May
Trollhättan, Sweden
- Average snowfall in May: 2mm
The month with the highest snowfall is January (80mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Trollhättan, Sweden
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (11.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Trollhättan, Sweden
- Average daylight in May: 16h and 48min
The month with the longest days is June (Average daylight: 18h and 6min).
The month with the shortest days is December (Average daylight: 6h and 30min).
- Average sunshine in May: 9h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 12min).
Average sunshine days in May
Trollhättan, Sweden
- Average sunshine days in May: 13.5 days
The month with the most sunshine days is April (15.6 days).
The month with the least sunshine days is December (9.5 days).
Average UV index in May
Trollhättan, Sweden
- Average UV index in May: 4
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in May
Trollhättan, Sweden
- Average cloud cover in May: 42
The month with the most cloud cover is February (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 41).
Average visibility in May
Trollhättan, Sweden
- Average visibility in May: 9km
The months with the highest visibility are April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January, February, March, November and December (8km).





