September weather forecastSenica, Slovakia
September
Weather in September
September brings the onset of fall in Senica with the temperatures beginning to descend. A relative humidity of 69% coupled with an average of 9.2 hours of sunshine per day, promotes the stunning display of autumn foliage. The transition from the heat of August becomes evident as the month progresses, with the occasional nip in the air. The average high temperature decreases noticeably, introducing a crisp coolness in the atmosphere. September's serene, comfortable weather offers residents an opportunity to soak in the vibrant display of cascading leaves and crisp autumn air.Temperature
Senica in September experiences a subtle temperature decline, with average high-temperatures reducing from a warm 26.8°C (80.2°F) in August to a pleasant 21°C (69.8°F). In the month of September, an average of 11.5°C (52.7°F) marks the low-temperature in Senica.Humidity
In Senica, the average relative humidity in September is 69%.Rainfall
In Senica, in September, during 10.6 rainfall days, 33mm (1.3") of precipitation is typically accumulated. Throughout the year, there are 142.3 rainfall days, and 415mm (16.34") of precipitation is accumulated.Snowfall
In Senica, snow does not fall in April through September.Daylight
In Senica, the average length of the day in September is 12h and 35min.On the first day of the month, sunrise is at 06:08 and sunset at 19:32. On the last day of September, in Senica, Slovakia, sunrise is at 06:49 and sunset at 18:31 CEST.
Sunshine
In Senica, the average sunshine in September is 9.2h.UV index
In September, the average daily maximum UV index in Senica, Slovakia, is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: An average UV index of 4 in September transforms into this advice:
Take precautions - Protection against sunburn is recommended. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Senica, Slovakia
- Average high temperature in September: 21°C
The warmest month (with the highest average high temperature) is August (26.8°C).
The month with the lowest average high temperature is January (1.3°C).
- Average low temperature in September: 11.5°C
The month with the highest average low temperature is August (15.3°C).
The coldest month (with the lowest average low temperature) is January (-3.5°C).
Average pressure in September
Senica, Slovakia
- Average pressure in September: 1018mbar
The month with the highest atmospheric pressure is December (1020mbar).
The month with the lowest atmospheric pressure is June (1014.7mbar).
Average wind speed in September
Senica, Slovakia
- Average wind speed in September: 10.5km/h
The windiest months (with the highest average wind speed) are February and March (13.5km/h).
The calmest month (with the lowest average wind speed) is August (9.7km/h).
Average humidity in September
Senica, Slovakia
- Average humidity in September: 69%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (62%).
Average rainfall in September
Senica, Slovakia
- Average rainfall in September: 33mm
The wettest month (with the highest rainfall) is May (56mm).
The driest month (with the least rainfall) is April (24mm).
Average rainfall days in September
Senica, Slovakia
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (8.9 days).
Average snowfall in September
Senica, Slovakia
- Average snowfall in September: 0mm
The month with the highest snowfall is January (108mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in September
Senica, Slovakia
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.9 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
Senica, Slovakia
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in September: 9h and 12min
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 6min).
Average sunshine days in September
Senica, Slovakia
- Average sunshine days in September: 17.6 days
The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is June (12.1 days).
Average UV index in September
Senica, 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
Senica, Slovakia
- Average cloud cover in September: 33
The months with the most cloud cover are January and February (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in September
Senica, Slovakia
- Average visibility in September: 9km
The months with the highest visibility are June, July and August (10km).
The months with the lowest visibility are January, February and December (8km).





