September weather forecastChelsea, Australia
September weather forecast for Chelsea, Australia: The first month of the spring, September, is still a mild month in Chelsea, Australia, with an average temperature varying between 9.4°C (48.9°F) and 15.4°C (59.7°F). In September, Chelsea's weather conditions record an average high-temperature of a still refreshing 15.4°C (59.7°F), demonstrating little divergence from the preceding month.
September
Weather in September
The first month of the spring, September, is still a mild month in Chelsea, Australia, with an average temperature varying between 9.4°C (48.9°F) and 15.4°C (59.7°F).Temperature
In September, Chelsea's weather conditions record an average high-temperature of a still refreshing 15.4°C (59.7°F), demonstrating little divergence from the preceding month. Chelsea records an average nighttime low-temperature of 9.4°C (48.9°F) throughout September.Humidity
The average relative humidity in September in Chelsea is 74%.Rainfall
In Chelsea, during September, the rain falls for 17.3 days and regularly aggregates up to 52mm (2.05") of precipitation. In Chelsea, during the entire year, the rain falls for 177.5 days and collects up to 562mm (22.13") of precipitation.Daylight
In Chelsea, Australia, the average length of the day in September is 11h and 51min.On the first day of the month, sunrise is at 6:40 am and sunset at 5:58 pm. On the last day of September, sunrise is at 5:55 am and sunset at 6:23 pm AEST.
Sunshine
In Chelsea, the average sunshine in September is 7.2h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In September, the maximum UV index of 4 transforms into these recommendations:
Take necessary precautions - Defending against sun damage is advocated. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Chelsea, Australia
- Average high temperature in September: 15.4°C
The warmest months (with the highest average high temperature) are January and February (23.4°C).
The month with the lowest average high temperature is July (13°C).
- Average low temperature in September: 9.4°C
The month with the highest average low temperature is February (16.2°C).
The coldest months (with the lowest average low temperature) are July and August (8.6°C).
Average pressure in September
Chelsea, Australia
- Average pressure in September: 1016.1mbar
The month with the highest atmospheric pressure is June (1021mbar).
The month with the lowest atmospheric pressure is January (1012.6mbar).
Average wind speed in September
Chelsea, Australia
- Average wind speed in September: 17.1km/h
The windiest months (with the highest average wind speed) are July and August (18.6km/h).
The calmest months (with the lowest average wind speed) are January, March and December (14km/h).
Average humidity in September
Chelsea, Australia
- Average humidity in September: 74%
The month with the highest relative humidity is June (78%).
The month with the lowest relative humidity is January (68%).
Average rainfall in September
Chelsea, Australia
- Average rainfall in September: 52mm
The wettest month (with the highest rainfall) is May (59mm).
The driest month (with the least rainfall) is March (34mm).
Average rainfall days in September
Chelsea, Australia
- Average rainfall days in September: 17.3 days
The month with the highest number of rainy days is August (19.3 days).
The month with the least rainy days is January (10.1 days).
Average daylight in September /
Average sunshine in September
Chelsea, Australia
- Average daylight in September: 11h and 48min
The month with the longest days is December (Average daylight: 14h and 48min).
The month with the shortest days is June (Average daylight: 9h and 36min).
- Average sunshine in September: 7h and 12min
The month with the most sunshine is December (Average sunshine: 9h and 42min).
The month with the least sunshine is May (Average sunshine: 6h and 24min).
Average sunshine days in September
Chelsea, Australia
- Average sunshine days in September: 9.9 days
The month with the most sunshine days is January (17.1 days).
The month with the least sunshine days is August (9.4 days).
Average UV index in September
Chelsea, Australia
- Average UV index in September: 4
The month with the highest UV index is December (UV index 6).
The months with the lowest UV index are June, July and August (UV index 3).
Average cloud cover in September
Chelsea, Australia
- Average cloud cover in September: 44
The month with the most cloud cover is July (Cloud cover 49).
The month with the least cloud cover is January (Cloud cover 31).
Average visibility in September
Chelsea, Australia
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
