Contents
September
Weather in September
Temperature
September's advent denotes a minor fluctuation in the average high-temperature to an agreeable 20°C (68°F) from August's 18.9°C (66°F). An average low-temperature of 14.6°C (58.3°F) is anticipated throughout the nights during September.Humidity
In September, the average relative humidity in Lord Howe Island is 68%.Rainfall
In Lord Howe Island, in September, it is raining for 16.5 days, with typically 111mm (4.37") of accumulated precipitation. In Lord Howe Island, during the entire year, the rain falls for 204.8 days and collects up to 1501mm (59.09") of precipitation.Sea temperature
The months with the coldest seawater are July through September, with an average sea temperature of 19°C (66.2°F).Note: Most people do not find swimming enjoyable in water of 19°C (66.2°F). The task of controlling breathing becomes tougher as the 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 54min.On the first day of the month, sunrise is at 6:09 am and sunset at 5:37 pm. On the last day of September, in Lord Howe Island, sunrise is at 5:32 am and sunset at 5:54 pm +1030.
Sunshine
In Lord Howe Island, the average sunshine in September is 17h.UV index
The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 6 in September, converts into the following recommendations:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How many days does it rain in September?
When is the sea coldest?
How cold is the water in September?
How many hours of daylight does Lord Howe Island have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Lord Howe Island, Australia
- Average high temperature in September: 20°C
The warmest month (with the highest average high temperature) is February (25.7°C).
The months with the lowest average high temperature are July and August (18.9°C).
- Average low temperature in September: 14.6°C
The month with the highest average low temperature is February (21°C).
The coldest month (with the lowest average low temperature) is August (13.5°C).
Average humidity in September
Lord Howe Island, Australia
- Average humidity in September: 68%
The month with the highest relative humidity is January (69%).
The month with the lowest relative humidity is August (64%).
Average rainfall in September
Lord Howe Island, Australia
- Average rainfall in September: 110.7mm
The wettest month (with the highest rainfall) is June (173.1mm).
The driest month (with the least rainfall) is December (102.4mm).
Average rainfall days in September
Lord Howe Island, Australia
- Average rainfall days in September: 16.5 days
The month with the highest number of rainy days is July (23.2 days).
The month with the least rainy days is January (13.1 days).
Average sea temperature in September
Lord Howe Island, Australia
- Average sea temperature in September: 19°C
The best months for swimming (with the highest average sea temperature) are January, February and March (24°C).
The coldest months (with the lowest average sea temperature) are July, August and September (19°C).
Average daylight in September /
Average sunshine in September
Lord Howe Island, Australia
- Average daylight in September: 11h and 5min
The month with the longest days is December (Average daylight: 14h and 12min).
The month with the shortest days is June (Average daylight: 10h and 6min).
- Average sunshine in September: 17h
The month with the most sunshine is June (Average sunshine: 23h).
The month with the least sunshine is December (Average sunshine: 12h).
Average UV index in September
Lord Howe Island, Australia
- Average UV index in September: 6
The months with the highest UV index are January, February and December (UV index 12).
The months with the lowest UV index are June and July (UV index 3).
