May weather forecastSianow, Poland

May

Weather in May

The last month of the spring, May, is a mild month in Sianow, Poland, with an average temperature ranging between max 15.7°C (60.3°F) and min 8.3°C (46.9°F).

Temperature

In Sianow, the average high-temperature in May slightly increases from a fresh 11.6°C (52.9°F) in April to a mild 15.7°C (60.3°F). During May, Sianow records a consistent average nighttime temperature of 8.3°C (46.9°F).

Humidity

The average relative humidity in May is 75%.

Rainfall

In Sianow, Poland, in May, during 12.3 rainfall days, 31mm (1.22") of precipitation is typically accumulated. Throughout the year, there are 142.6 rainfall days, and 388mm (15.28") of precipitation is accumulated.

Snowfall

January through May, November and December are months with snowfall in Sianow. May is the last month it regularly snows in Sianow. During 0.1 snowfall days, in May, Sianow aggregates 1mm (0.04") of snow. In Sianow, Poland, during the entire year, snow falls for 31.1 days and aggregates up to 172mm (6.77") of snow.

Daylight

In Sianow, the average length of the day in May is 16h and 2min.
On the first day of May, sunrise is at 05:16 and sunset at 20:27. On the last day of the month, sunrise is at 04:28 and sunset at 21:16 CEST.

Sunshine

The average sunshine in May is 9.4h.

UV index

In Sianow, Poland, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In May, the maximum UV index of 4 transforms into these recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. The solar radiation around mid-day is intense; avoid the Sun and stay safe. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.

Frequently asked questions

The high-temperature, in May, in Sianow, is 15.7°C (60.3°F), while the low-temperature averages to 8.3°C (46.9°F).

The average relative humidity in May in Sianow is 75%.

In Sianow, Poland, in May, during 12.3 rainfall days, 31mm (1.22") of precipitation is typically accumulated.

May is the last month it regularly snows in Sianow. During 0.1 snowfall days, in May, Sianow aggregates 1mm (0.04") of snow.

In Sianow, the average day length in May is 16h and 2min.

In May, on the first day of the month, sunrise is at 05:16 and sunset at 20:27. On the last day of the month, sunrise is at 04:28 and sunset at 21:16 CEST.

In Sianow, Poland, the average sunshine duration in May is 9.4h.

In Sianow, the average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Sianow, Poland

  • Average high temperature in May: 15.7°C

The warmest month (with the highest average high temperature) is August (22.1°C).
The month with the lowest average high temperature is January (1.3°C).

  • Average low temperature in May: 8.3°C

The month with the highest average low temperature is August (15.3°C).
The coldest months (with the lowest average low temperature) are January and February (-1.1°C).

Average pressure in May
Sianow, Poland

  • Average pressure in May: 1015.7mbar

The month with the highest atmospheric pressure is October (1016.4mbar).
The months with the lowest atmospheric pressure are November and December (1013.2mbar).

Average wind speed in May
Sianow, Poland

  • Average wind speed in May: 15.2km/h

The windiest month (with the highest average wind speed) is December (20.3km/h).
The calmest month (with the lowest average wind speed) is August (14.4km/h).

Average humidity in May
Sianow, Poland

  • Average humidity in May: 75%

The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is April (72%).

Average rainfall in May
Sianow, Poland

  • Average rainfall in May: 31mm

The wettest month (with the highest rainfall) is July (51mm).
The driest month (with the least rainfall) is April (11mm).

Average rainfall days in May
Sianow, Poland

  • Average rainfall days in May: 12.3 days

The month with the highest number of rainy days is July (14.4 days).
The month with the least rainy days is April (8.8 days).

Average snowfall in May
Sianow, Poland

  • Average snowfall in May: 1mm

The month with the highest snowfall is January (62mm).
The months with the least snowfall are June, July, August, September and October (0mm).

Average snowfall days in May
Sianow, Poland

  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in May /
Average sunshine in May
Sianow, Poland

  • Average daylight in May: 16h and 0min

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 24min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The months with the least sunshine are January and December (Average sunshine: 3h and 6min).

Average sunshine days in May
Sianow, Poland

  • Average sunshine days in May: 17 days

The month with the most sunshine days is April (19.2 days).
The month with the least sunshine days is December (11.1 days).

Average UV index in May
Sianow, Poland

  • Average UV index in May: 4

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).

Average cloud cover in May
Sianow, Poland

  • Average cloud cover in May: 38

The month with the most cloud cover is December (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in May
Sianow, Poland

  • 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).