September weather forecastKiama, Australia
September
Weather in September
September, the first month of the spring in Kiama, is still a comfortable month, with an average temperature varying between 18.8°C (65.8°F) and 11.8°C (53.2°F).Temperature
Kiama experiences a minor change to a still enjoyable 18.8°C (65.8°F) in average high-temperature during September, closely reflecting August. In September, Kiama experiences a temperature dip to an average of 11.8°C (53.2°F) at night.Humidity
The average relative humidity in September is 69%.Rainfall
September is the month with the least rainfall. Rain falls for 11.7 days and accumulates 33mm (1.3") of precipitation.Sea temperature
In Kiama, in September, the average water temperature is 18.2°C (64.8°F).Note: Most people do not enjoy swimming in water of 18.2°C (64.8°F). Breathing control becomes harder as the temperature descends from 21°C (69.8°F) to 15°C (59°F).
Daylight
The average length of the day in September in Kiama, Australia, is 11h and 52min.On the first day of September in Kiama, sunrise is at 6:15 am and sunset at 5:38 pm. On the last day of the month, sunrise is at 5:34 am and sunset at 5:58 pm AEST.
Sunshine
The average sunshine in September in Kiama is 8.6h.UV index
The months with the lowest UV index in Kiama, Australia, are May through September, with an average maximum UV index of 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: In September, a daily UV index of 4 turns into the following recommendations:
Adopt protective measures - Suggestions to resist sunburn are offered. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Kiama, Australia
- Average high temperature in September: 18.8°C
The warmest month (with the highest average high temperature) is January (25.7°C).
The month with the lowest average high temperature is July (15.7°C).
- Average low temperature in September: 11.8°C
The months with the highest average low temperature are January and February (19°C).
The coldest month (with the lowest average low temperature) is July (9.7°C).
Average pressure in September
Kiama, Australia
- Average pressure in September: 1017mbar
The month with the highest atmospheric pressure is June (1020.8mbar).
The month with the lowest atmospheric pressure is January (1012.9mbar).
Average wind speed in September
Kiama, Australia
- Average wind speed in September: 15.7km/h
The windiest month (with the highest average wind speed) is August (16.2km/h).
The calmest month (with the lowest average wind speed) is April (13.9km/h).
Average humidity in September
Kiama, Australia
- Average humidity in September: 69%
The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is August (67%).
Average rainfall in September
Kiama, Australia
- Average rainfall in September: 33mm
The wettest month (with the highest rainfall) is February (97mm).
The driest month (with the least rainfall) is September (33mm).
Average rainfall days in September
Kiama, Australia
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is March (18.3 days).
The month with the least rainy days is August (9.5 days).
Average sea temperature in September
Kiama, Australia
- Average sea temperature in September: 18.2°C
The best month for swimming (with the highest average sea temperature) is February (23.5°C).
The coldest month (with the lowest average sea temperature) is August (18.1°C).
Average daylight in September /
Average sunshine in September
Kiama, Australia
- Average daylight in September: 11h and 54min
The month with the longest days is December (Average daylight: 14h and 24min).
The month with the shortest days is June (Average daylight: 9h and 54min).
- Average sunshine in September: 8h and 36min
The month with the most sunshine is November (Average sunshine: 9h and 48min).
The month with the least sunshine is June (Average sunshine: 5h and 54min).
Average sunshine days in September
Kiama, Australia
- Average sunshine days in September: 16.3 days
The month with the most sunshine days is August (19.5 days).
The month with the least sunshine days is February (7.9 days).
Average UV index in September
Kiama, Australia
- Average UV index in September: 4
The months with the highest UV index are January and December (UV index 6).
The months with the lowest UV index are May, June, July, August and September (UV index 4).
Average cloud cover in September
Kiama, Australia
- Average cloud cover in September: 28
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in September
Kiama, 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).
