May weather forecastOłtarzew, Poland
May
Weather in May
May, the last month of the spring in Ołtarzew, is a comfortable month, with an average temperature varying between 8.9°C (48°F) and 19°C (66.2°F).Temperature
A slight uplift in the average high-temperature marks May, adjusting from April's mild 14.4°C (57.9°F) to a still refreshing 19°C (66.2°F). The average temperature during May nights in Ołtarzew is registered at a frosty 8.9°C (48°F).Humidity
In Ołtarzew, the average relative humidity in May is 71%.Rainfall
May is the month with the most rainfall in Ołtarzew. Rain falls for 18.1 days and accumulates 54mm (2.13") of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, in May, Ołtarzew aggregates 1mm (0.04") of snow. Throughout the year, in Ołtarzew, there are 46.1 snowfall days, and 276mm (10.87") of snow is accumulated.Daylight
The average length of the day in May in Ołtarzew is 15h and 44min.On the first day of May, sunrise is at 05:05 and sunset at 20:02. On the last day of the month, sunrise is at 04:21 and sunset at 20:47 CEST.
Sunshine
In Ołtarzew, the average sunshine in May is 9.1h.UV index
The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: In May, an average UV index of 5 transforms into the following instructions:
Undertake precautions - Guarding against sun damage is counselled. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Ołtarzew, Poland
- Average high temperature in May: 19°C
The warmest month (with the highest average high temperature) is August (25°C).
The month with the lowest average high temperature is January (-0.4°C).
- Average low temperature in May: 8.9°C
The month with the highest average low temperature is August (15°C).
The coldest month (with the lowest average low temperature) is January (-3.8°C).
Average pressure in May
Ołtarzew, Poland
- Average pressure in May: 1015.1mbar
The month with the highest atmospheric pressure is October (1018.2mbar).
The month with the lowest atmospheric pressure is July (1013.6mbar).
Average wind speed in May
Ołtarzew, Poland
- Average wind speed in May: 11.4km/h
The windiest month (with the highest average wind speed) is December (14km/h).
The calmest month (with the lowest average wind speed) is August (10.4km/h).
Average humidity in May
Ołtarzew, Poland
- Average humidity in May: 71%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (66%).
Average rainfall in May
Ołtarzew, Poland
- Average rainfall in May: 54mm
The wettest month (with the highest rainfall) is May (54mm).
The driest month (with the least rainfall) is November (18mm).
Average rainfall days in May
Ołtarzew, Poland
- Average rainfall days in May: 18.1 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is January (7.7 days).
Average snowfall in May
Ołtarzew, Poland
- Average snowfall in May: 1mm
The month with the highest snowfall is January (94mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in May
Ołtarzew, Poland
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (14.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Ołtarzew, Poland
- Average daylight in May: 15h and 42min
The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in May: 9h and 6min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in May
Ołtarzew, Poland
- Average sunshine days in May: 10.8 days
The month with the most sunshine days is October (17.2 days).
The month with the least sunshine days is February (10.6 days).
Average UV index in May
Ołtarzew, Poland
- Average UV index in May: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in May
Ołtarzew, Poland
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in May
Ołtarzew, Poland
- Average visibility in May: 9km
The months with the highest visibility are June and August (10km).
The month with the lowest visibility is January (7km).





