September weather forecastCoffs Harbour, Australia
September
Weather in September
September in Coffs Harbour signifies the advent of spring, as temperatures and overall conditions start to transition towards summer-like characteristics. Despite its sunny disposition, the month records the lowest rainfall quantity, with a measured average of only 26mm (1.02") precipitation. As the city re-emerges under the sun, local flora begins to blossom, thereby attracting nature lovers and photographers alike. Palm trees sway in the gentle spring breeze, as both ocean and land come to life under the warming sun.Temperature
Coffs Harbour's average high-temperature in September is an agreeable 21.6°C (70.9°F), indicating a subtle variation from August. September's average low-temperature reading in Coffs Harbour, Australia, settles at a refreshing 13.4°C (56.1°F).Humidity
The average relative humidity in September is 69%.Rainfall
September is the month with the least rainfall. Rain falls for 10.9 days and accumulates 26mm (1.02") of precipitation.Sea temperature
In Coffs Harbour, Australia, the average seawater temperature in September is 21°C (69.8°F).Note: Most people do not find pleasure in swimming when the water temperature is 21°C (69.8°F). Breathing becomes increasingly difficult to manage as the water temperature drops from 21°C (69.8°F) to 15°C (59°F).
Daylight
The average length of the day in September is 11h and 55min.On the first day of the month, sunrise is at 6:02 am and sunset at 5:32 pm. On the last day of September, in Coffs Harbour, sunrise is at 5:26 am and sunset at 5:48 pm AEST.
Sunshine
In Coffs Harbour, the average sunshine in September is 8.9h.UV index
In Coffs Harbour, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: A maximum high UV index of 5 in September translates into the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Direct Sun exposure should be minimized especially during midday when radiation is most intense. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Coffs Harbour, Australia
- Average high temperature in September: 21.6°C
The warmest month (with the highest average high temperature) is January (27.2°C).
The month with the lowest average high temperature is July (17.8°C).
- Average low temperature in September: 13.4°C
The month with the highest average low temperature is January (20.4°C).
The coldest month (with the lowest average low temperature) is July (11.1°C).
Average pressure in September
Coffs Harbour, Australia
- Average pressure in September: 1018mbar
The month with the highest atmospheric pressure is July (1020.7mbar).
The month with the lowest atmospheric pressure is January (1013mbar).
Average wind speed in September
Coffs Harbour, Australia
- Average wind speed in September: 12.5km/h
The windiest month (with the highest average wind speed) is January (13.2km/h).
The calmest months (with the lowest average wind speed) are April and May (11.6km/h).
Average humidity in September
Coffs Harbour, Australia
- Average humidity in September: 69%
The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is August (68%).
Average rainfall in September
Coffs Harbour, Australia
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is February (110mm).
The driest month (with the least rainfall) is September (26mm).
Average rainfall days in September
Coffs Harbour, Australia
- Average rainfall days in September: 10.9 days
The month with the highest number of rainy days is March (22.5 days).
The month with the least rainy days is August (10.3 days).
Average sea temperature in September
Coffs Harbour, Australia
- Average sea temperature in September: 21°C
The best month for swimming (with the highest average sea temperature) is February (26°C).
The coldest month (with the lowest average sea temperature) is August (20°C).
Average daylight in September /
Average sunshine in September
Coffs Harbour, Australia
- Average daylight in September: 11h and 54min
The month with the longest days is December (Average daylight: 14h and 6min).
The month with the shortest days is June (Average daylight: 10h and 12min).
- Average sunshine in September: 8h and 54min
The month with the most sunshine is November (Average sunshine: 10h and 6min).
The month with the least sunshine is June (Average sunshine: 6h and 0min).
Average sunshine days in September
Coffs Harbour, Australia
- Average sunshine days in September: 15.7 days
The month with the most sunshine days is August (17.4 days).
The month with the least sunshine days is March (5.4 days).
Average UV index in September
Coffs Harbour, Australia
- Average UV index in September: 5
The months with the highest UV index are January, February, November and December (UV index 6).
The months with the lowest UV index are June and July (UV index 4).
Average cloud cover in September
Coffs Harbour, Australia
- Average cloud cover in September: 24
The months with the most cloud cover are February and March (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in September
Coffs Harbour, Australia
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (10km).
The month with the lowest visibility is November (9km).
