September weather forecastHavaj, Slovakia

September

Weather in September

September, the first month of the autumn in Havaj, is still a pleasant month, with an average temperature fluctuating between 9.6°C (49.3°F) and 20.5°C (68.9°F).

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.

Updated: Feb 2, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Havaj in September has an average high-temperature of 20.5°C (68.9°F) and an average low-temperature of 9.6°C (49.3°F).

In Havaj, the average relative humidity in September is 70%.

The month with the least rainfall in Havaj, Slovakia, is September, when the rain falls for 8.5 days and typically collects 16mm (0.63") of precipitation.

In Havaj, during September, the rain falls for 8.5 days and regularly aggregates up to 16mm (0.63") of precipitation.

In Havaj, snow does not fall in May through September.

In Havaj, in September, it doesn't snow. In October, it regularly snows.

In September, the average day length 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.

In September, the average sunshine duration in Havaj, Slovakia, is 8.9h.

In September, the average daily maximum UV index in Havaj, Slovakia, is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

26.5°C

20.5°C

13.4°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

9.3km/h

9km/h

9.5km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average daylight

Average sunshine

Average sunshine days

19.8

22.2

Average UV index

Average cloud cover

Average visibility

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 36min

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 54min

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).