Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
The onset of September results in a decrease in the average high-temperature, receding from a moderately hot 26.5°C (79.7°F) in August to a pleasant 20.5°C (68.9°F). Havaj experiences a consistent average temperature of 9.6°C (49.3°F) throughout the nights in September.Humidity
In Havaj, the average relative humidity in September is 70%.Rainfall
The month with the least rainfall in Havaj is September, when the rain falls for 8.5 days and typically collects 16mm (0.63") of precipitation.Snowfall
May through September are months without snowfall in Havaj, Slovakia.Daylight
In September, the average length of the day is 12h and 36min.On the first day of September in Havaj, Slovakia, sunrise is at 05:49 and sunset at 19:15. On the last day of the month, sunrise is at 06:31 and sunset at 18:13 CEST.
Sunshine
The average sunshine in September is 8.9h.UV index
In September, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, the UV index of 3 transforms into the following advice:
Take necessary precautions - Suggestions to elude sunburn are provided. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Havaj?
What is the average humidity in September in Havaj?
What is the driest month in Havaj?
How much does it rain in Havaj in September?
When it does not snow in Havaj?
Does it snow in Havaj in September?
What is the average length of the day in September in Havaj?
When are sunrise and sunset in September in Havaj?
How long on average sun shines in September in Havaj?
How high is the UV index in September in Havaj?
Average temperature in September
Havaj, Slovakia
- Average high temperature in September: 20.5°C
The warmest month (with the highest average high temperature) is August (26.5°C).
The month with the lowest average high temperature is January (-0.5°C).
- Average low temperature in September: 9.6°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (-5.2°C).
Average pressure in September
Havaj, Slovakia
- Average pressure in September: 1017.6mbar
The month with the highest atmospheric pressure is December (1019.7mbar).
The month with the lowest atmospheric pressure is June (1014.2mbar).
Average wind speed in September
Havaj, Slovakia
- Average wind speed in September: 8.5km/h
The windiest month (with the highest average wind speed) is March (10.4km/h).
The calmest months (with the lowest average wind speed) are August and September (8.5km/h).
Average humidity in September
Havaj, Slovakia
- Average humidity in September: 70%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is August (66%).
Average rainfall in September
Havaj, Slovakia
- Average rainfall in September: 16mm
The wettest month (with the highest rainfall) is June (59mm).
The driest month (with the least rainfall) is September (16mm).
Average rainfall days in September
Havaj, Slovakia
- Average rainfall days in September: 8.5 days
The months with the highest number of rainy days are May, June and July (15.3 days).
The month with the least rainy days is October (6.7 days).
Average snowfall in September
Havaj, Slovakia
- Average snowfall in September: 0mm
The month with the highest snowfall is January (118mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Havaj, Slovakia
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.4 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
Havaj, Slovakia
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is August (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in September
Havaj, Slovakia
- Average sunshine days in September: 19.8 days
The month with the most sunshine days is October (22.2 days).
The month with the least sunshine days is June (12.6 days).
Average UV index in September
Havaj, Slovakia
- Average UV index in September: 3
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Havaj, Slovakia
- Average cloud cover in September: 31
The month with the most cloud cover is December (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in September
Havaj, Slovakia
- Average visibility in September: 9km
The month with the highest visibility is August (10km).
The months with the lowest visibility are January and December (7km).
