September weather forecastGeraldton, Australia
September
Weather in September
September in Geraldton marks the beginning of the warming period with a significant increase in temperatures. A notable change in weather patterns occurs as the maximum temperature jumps to 20.5°C (68.9°F), indicating spring's onset. The amount of rainfall lowers considerably to 12mm (0.47"), offering a drier month. September also carries forward the trend of longer daylight hours from August, accommodating extra outdoor pursuits. October, while bringing further warmth, also introduces the driest part of the year.Temperature
September's climate in Geraldton shows a minor adjustment in average high-temperatures to an agreeable 20.5°C (68.9°F) from August's 19.3°C (66.7°F). Throughout the month of September, Geraldton expects an average low of 13.2°C (55.8°F).Humidity
The average relative humidity in September in Geraldton is 68%.Rainfall
In Geraldton, in September, it is raining for 8.2 days, with typically 12mm (0.47") of accumulated precipitation. In Geraldton, during the entire year, the rain falls for 88.5 days and collects up to 218mm (8.58") of precipitation.Sea temperature
September and October, with an average sea temperature of 20°C (68°F), are months with the coldest seawater in Geraldton.Note: Swimming is not a pleasant activity for most individuals in 20°C (68°F). Breathing becomes increasingly challenging to control as the water temperature dips from 21°C (69.8°F) to 15°C (59°F).
Daylight
In September, the average length of the day in Geraldton, Australia, is 11h and 55min.On the first day of September, sunrise is at 6:35 am and sunset at 6:07 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 6:21 pm AWST.
Sunshine
In September, the average sunshine in Geraldton is 9.2h.UV index
The average daily maximum UV index in September in Geraldton, Australia, is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: A daily high UV index of 5 in September leads to these guidelines:
Act with care - Obligation to protect against skin and eye damage is highlighted. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Geraldton, Australia
- Average high temperature in September: 20.5°C
The warmest month (with the highest average high temperature) is February (30.5°C).
The month with the lowest average high temperature is July (18.8°C).
- Average low temperature in September: 13.2°C
The month with the highest average low temperature is February (23.2°C).
The coldest month (with the lowest average low temperature) is August (12.7°C).
Average pressure in September
Geraldton, Australia
- Average pressure in September: 1018.7mbar
The month with the highest atmospheric pressure is July (1020.5mbar).
The month with the lowest atmospheric pressure is January (1008.9mbar).
Average wind speed in September
Geraldton, Australia
- Average wind speed in September: 19.4km/h
The windiest months (with the highest average wind speed) are January and December (23.5km/h).
The calmest month (with the lowest average wind speed) is July (17.9km/h).
Average humidity in September
Geraldton, Australia
- Average humidity in September: 68%
The month with the highest relative humidity is August (70%).
The months with the lowest relative humidity are March and May (56%).
Average rainfall in September
Geraldton, Australia
- Average rainfall in September: 12mm
The wettest month (with the highest rainfall) is June (43mm).
The driest month (with the least rainfall) is November (6mm).
Average rainfall days in September
Geraldton, Australia
- Average rainfall days in September: 8.2 days
The month with the highest number of rainy days is July (12.6 days).
The months with the least rainy days are February and November (4.7 days).
Average sea temperature in September
Geraldton, Australia
- Average sea temperature in September: 20°C
The best months for swimming (with the highest average sea temperature) are March, April and May (24°C).
The coldest months (with the lowest average sea temperature) are September and October (20°C).
Average daylight in September /
Average sunshine in September
Geraldton, Australia
- Average daylight in September: 11h and 54min
The month with the longest days is December (Average daylight: 13h and 54min).
The month with the shortest days is June (Average daylight: 10h and 18min).
- Average sunshine in September: 9h and 12min
The month with the most sunshine is January (Average sunshine: 11h and 48min).
The month with the least sunshine is July (Average sunshine: 6h and 30min).
Average sunshine days in September
Geraldton, Australia
- Average sunshine days in September: 18.8 days
The month with the most sunshine days is December (23.6 days).
The month with the least sunshine days is July (16.3 days).
Average UV index in September
Geraldton, Australia
- Average UV index in September: 5
The months with the highest UV index are January and February (UV index 7).
The month with the lowest UV index is August (UV index 4).
Average cloud cover in September
Geraldton, Australia
- Average cloud cover in September: 19
The month with the most cloud cover is July (Cloud cover 26).
The month with the least cloud cover is January (Cloud cover 13).
Average visibility in September
Geraldton, 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).
