May weather forecastGruna, Czech Republic

May

Weather in May

May, the last month of the spring in Gruna, is a comfortable month, with temperature in the range of an average low of 7°C (44.6°F) and an average high of 17°C (62.6°F).

Temperature

With the onset of May, Gruna's average high-temperature experiences a slight rise, moving from April's refreshing 13.8°C (56.8°F) to an enjoyable 17°C (62.6°F). Gruna, in May, witnesses an average low-temperature of 7°C (44.6°F).

Humidity

In Gruna, the average relative humidity in May is 78%.

Rainfall

In Gruna, in May, it is raining for 20.4 days, with typically 66mm (2.6") of accumulated precipitation. Throughout the year, there are 168.2 rainfall days, and 519mm (20.43") of precipitation is accumulated.

Snowfall

Months with snowfall in Gruna are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Gruna aggregates 12mm (0.47") of snow. Throughout the year, in Gruna, there are 64.2 snowfall days, and 521mm (20.51") of snow is accumulated.

Daylight

In Gruna, the average length of the day in May is 15h and 24min.
On the first day of May, sunrise is at 05:28 and sunset at 20:11. On the last day of the month, sunrise is at 04:50 and sunset at 20:51 CEST.

Sunshine

In May, the average sunshine is 9.1h.

UV index

In May, the average daily maximum UV index in Gruna is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: The daily maximum UV index of 4 in May interprets into the following advice:
Exercise care. People with light skin might get burns in fewer than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.

Frequently asked questions

In Gruna, in May, the average high-temperature is 17°C (62.6°F), and the average low-temperature is 7°C (44.6°F).

In Gruna, the average relative humidity in May is 78%.

In Gruna, in May, it is raining for 20.4 days, with typically 66mm (2.6") of accumulated precipitation.

May is the last month it regularly snows in Gruna, Czech Republic. During 0.3 snowfall days, in May, Gruna aggregates 12mm (0.47") of snow.

The average day length in May in Gruna is 15h and 24min.

On the first day of May, sunrise is at 05:28 and sunset at 20:11. On the last day of the month, sunrise is at 04:50 and sunset at 20:51 CEST.

In May, the average sunshine duration in Gruna is 9.1h.

The average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Gruna, Czech Republic

  • Average high temperature in May: 17°C

The warmest month (with the highest average high temperature) is August (23.8°C).
The month with the lowest average high temperature is January (-0.7°C).

  • Average low temperature in May: 7°C

The month with the highest average low temperature is August (13.2°C).
The coldest month (with the lowest average low temperature) is January (-5.1°C).

Average pressure in May
Gruna, Czech Republic

  • Average pressure in May: 1015.4mbar

The month with the highest atmospheric pressure is December (1018.9mbar).
The month with the lowest atmospheric pressure is July (1015mbar).

Average wind speed in May
Gruna, Czech Republic

  • Average wind speed in May: 11.3km/h

The windiest months (with the highest average wind speed) are February and March (13km/h).
The calmest month (with the lowest average wind speed) is August (8.7km/h).

Average humidity in May
Gruna, Czech Republic

  • Average humidity in May: 78%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (71%).

Average rainfall in May
Gruna, Czech Republic

  • Average rainfall in May: 66mm

The wettest month (with the highest rainfall) is July (77mm).
The driest month (with the least rainfall) is April (26mm).

Average rainfall days in May
Gruna, Czech Republic

  • Average rainfall days in May: 20.4 days

The month with the highest number of rainy days is July (20.8 days).
The month with the least rainy days is February (8.9 days).

Average snowfall in May
Gruna, Czech Republic

  • Average snowfall in May: 12mm

The month with the highest snowfall is January (174mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in May
Gruna, Czech Republic

  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is January (18.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Gruna, Czech Republic

  • Average daylight in May: 15h and 24min

The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).

  • Average sunshine in May: 9h and 6min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in May
Gruna, Czech Republic

  • Average sunshine days in May: 7.8 days

The month with the most sunshine days is October (16.5 days).
The month with the least sunshine days is May (7.8 days).

Average UV index in May
Gruna, Czech Republic

  • 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 February (UV index 1).

Average cloud cover in May
Gruna, Czech Republic

  • Average cloud cover in May: 41

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in May
Gruna, Czech Republic

  • Average visibility in May: 9km

The months with the highest visibility are March, April, May, June, July, August, September and October (9km).
The month with the lowest visibility is January (7km).