May weather forecastSiwianka, Poland
May weather forecast for Siwianka, Poland: On the last day of the month, in Siwianka, sunrise is at 04:19 and sunset at 20:44 CEST. The month with the most rainfall is May, when the rain falls for 12.8 days and typically aggregates up to 41mm (1.61") of precipitation.
May
Weather in May
The last month of the spring, May, is an enjoyable month in Siwianka, Poland, with an average temperature ranging between min 8.9°C (48°F) and max 19.1°C (66.4°F).Temperature
May witnesses a subtle temperature ascent, adjusting from a mild 14.2°C (57.6°F) in April to a still refreshing 19.1°C (66.4°F). Siwianka cools down to an average low-temperature of 8.9°C (48°F) throughout the month of May.Humidity
In Siwianka, the average relative humidity in May is 72%.Rainfall
The month with the most rainfall is May, when the rain falls for 12.8 days and typically aggregates up to 41mm (1.61") of precipitation.Snowfall
May through September are months without snowfall.Daylight
The average length of the day in May is 15h and 43min.On the first day of the month, sunrise is at 05:02 and sunset at 19:59. On the last day of May, sunrise is at 04:19 and sunset at 20:44 CEST.
Sunshine
The average sunshine in May is 9h.UV index
In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: During May, 5 as the daily maximum UV index converts into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Around midday, solar radiation is most harmful; hence, exposure should be limited. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Siwianka, Poland
- Average high temperature in May: 19.1°C
The warmest month (with the highest average high temperature) is August (24.9°C).
The month with the lowest average high temperature is January (-0.5°C).
- Average low temperature in May: 8.9°C
The month with the highest average low temperature is August (14.8°C).
The coldest month (with the lowest average low temperature) is January (-4°C).
Average pressure in May
Siwianka, 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 (1013.5mbar).
Average wind speed in May
Siwianka, Poland
- Average wind speed in May: 11.5km/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 (10.3km/h).
Average humidity in May
Siwianka, Poland
- Average humidity in May: 72%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (67%).
Average rainfall in May
Siwianka, Poland
- Average rainfall in May: 41mm
The wettest month (with the highest rainfall) is May (41mm).
The driest months (with the least rainfall) are April and November (14mm).
Average rainfall days in May
Siwianka, Poland
- Average rainfall days in May: 12.8 days
The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in May
Siwianka, Poland
- Average snowfall in May: 0mm
The month with the highest snowfall is January (80mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in May
Siwianka, Poland
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (10.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Siwianka, 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 0min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in May
Siwianka, Poland
- Average sunshine days in May: 17.3 days
The month with the most sunshine days is October (21.7 days).
The month with the least sunshine days is February (14.6 days).
Average UV index in May
Siwianka, 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
Siwianka, Poland
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in May
Siwianka, Poland
- Average visibility in May: 9km
The months with the highest visibility are June and August (10km).
The months with the lowest visibility are January and February (7km).





