September weather forecastModra, Slovakia
September
Weather in September
September rings in the transition from summer to autumn in Modra. A noticeable drop in temperature and daylight hours outlines September's weather. The city embraces the early signs of autumn, with leaves starting to change colors. Rainfall may increase compared to August, offering a refreshing contrast to the previous summer warmth. September's mild weather conditions coupled with incoming autumnal hues create a picturesque ambiance across Modra.Temperature
September brings a drop in Modra's average high-temperature, falling from a moderately hot 27.3°C (81.1°F) in August to an agreeable 21.3°C (70.3°F). Throughout the month of September, Modra reports a steady low-temperature average of 12.1°C (53.8°F).Humidity
In Modra, the average relative humidity in September is 67%.Rainfall
In Modra, Slovakia, in September, during 11.3 rainfall days, 45mm (1.77") of precipitation is typically accumulated. Throughout the year, in Modra, there are 149.3 rainfall days, and 464mm (18.27") of precipitation is accumulated.Snowfall
In Modra, snow does not fall in May through September.Daylight
In September, the average length of the day is 12h and 35min.On the first day of the month, sunrise is at 06:09 and sunset at 19:32. On the last day of September, in Modra, sunrise is at 06:49 and sunset at 18:31 CEST.
Sunshine
The average sunshine in September in Modra, Slovakia, is 9.3h.UV index
In September, the average daily maximum UV index in Modra is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.Note: The average daily UV index of 4 in September transforms into the following instructions:
Ensure safety - Recommendations to avert sunburn are presented. Direct Sun exposure should be minimized especially during midday when radiation is most intense. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Modra, Slovakia
- Average high temperature in September: 21.3°C
The warmest month (with the highest average high temperature) is August (27.3°C).
The month with the lowest average high temperature is January (1.8°C).
- Average low temperature in September: 12.1°C
The month with the highest average low temperature is August (15.9°C).
The coldest month (with the lowest average low temperature) is January (-2.8°C).
Average pressure in September
Modra, Slovakia
- Average pressure in September: 1018mbar
The month with the highest atmospheric pressure is December (1020.2mbar).
The month with the lowest atmospheric pressure is June (1014.8mbar).
Average wind speed in September
Modra, Slovakia
- Average wind speed in September: 11.4km/h
The windiest month (with the highest average wind speed) is February (14.9km/h).
The calmest month (with the lowest average wind speed) is August (10.4km/h).
Average humidity in September
Modra, Slovakia
- Average humidity in September: 67%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (61%).
Average rainfall in September
Modra, Slovakia
- Average rainfall in September: 45mm
The wettest months (with the highest rainfall) are May and June (66mm).
The driest month (with the least rainfall) is February (26mm).
Average rainfall days in September
Modra, Slovakia
- Average rainfall days in September: 11.3 days
The months with the highest number of rainy days are May and June (17.3 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in September
Modra, Slovakia
- Average snowfall in September: 0mm
The month with the highest snowfall is January (84mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Modra, Slovakia
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Modra, Slovakia
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in September: 9h and 18min
The month with the most sunshine is August (Average sunshine: 11h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in September
Modra, Slovakia
- Average sunshine days in September: 17.1 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is May (9.7 days).
Average UV index in September
Modra, Slovakia
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Modra, Slovakia
- Average cloud cover in September: 32
The month with the most cloud cover is February (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in September
Modra, Slovakia
- Average visibility in September: 10km
The months with the highest visibility are April, June, July, August and September (10km).
The month with the lowest visibility is January (8km).
