Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
As Eltham welcomes September, the average high-temperature stabilizes at a still mild 13.8°C (56.8°F), showing little deviation from August's 13.3°C (55.9°F). September notes an average low temperature of 9.5°C (49.1°F), subtly down from the daytime highs.Humidity
The months with the highest humidity are May through October and December, with an average relative humidity of 80%.Rainfall
In Eltham, during September, the rain falls for 19 days and regularly aggregates up to 89mm (3.5") of precipitation. Throughout the year, in Eltham, there are 184.4 rainfall days, and 878mm (34.57") of precipitation is accumulated.Daylight
In Eltham, New Zealand, the average length of the day in September is 11h and 50min.On the first day of the month, sunrise is at 6:45 am and sunset at 6:00 pm NZST. On the last day of September, sunrise is at 6:58 am and sunset at 7:26 pm NZDT.
Note: On Sunday, 29. September 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from NZST to NZDT. Daylight Saving Time lasts until Sunday, 06. April 2025, at 3:00 am; consequently, the time zone reverts from NZDT to NZST.
Sunshine
In September, the average sunshine in Eltham is 6.4h.UV index
In Eltham, New Zealand, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 4 during September leads to these instructions:
Undertake protective steps - Recommendations to avoid sunburn are issued. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. 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 in Eltham?
What is the most humid month in Eltham?
What is the average humidity in September in Eltham?
How many days does it rain in September in Eltham?
How many hours of daylight does Eltham have in September?
When are sunrise and sunset in September in Eltham?
When does Daylight Saving Time (DST) start in September in Eltham?
How long on average sun shines in September in Eltham?
What is the UV index reading in September in Eltham?
Average temperature in September
Eltham, New Zealand
- Average high temperature in September: 13.8°C
The warmest month (with the highest average high temperature) is February (21.3°C).
The month with the lowest average high temperature is July (12.6°C).
- Average low temperature in September: 9.5°C
The month with the highest average low temperature is February (15.6°C).
The coldest month (with the lowest average low temperature) is July (8.8°C).
Average pressure in September
Eltham, New Zealand
- Average pressure in September: 1013.7mbar
The month with the highest atmospheric pressure is March (1018.2mbar).
The month with the lowest atmospheric pressure is September (1013.7mbar).
Average wind speed in September
Eltham, New Zealand
- Average wind speed in September: 19.9km/h
The windiest month (with the highest average wind speed) is September (19.9km/h).
The calmest month (with the lowest average wind speed) is February (14.7km/h).
Average humidity in September
Eltham, New Zealand
- Average humidity in September: 80%
The months with the highest relative humidity are May, June, July, August, September, October and December (80%).
The months with the lowest relative humidity are January, March and November (78%).
Average rainfall in September
Eltham, New Zealand
- Average rainfall in September: 89mm
The wettest month (with the highest rainfall) is July (103mm).
The driest month (with the least rainfall) is February (38mm).
Average rainfall days in September
Eltham, New Zealand
- Average rainfall days in September: 19 days
The month with the highest number of rainy days is September (19 days).
The month with the least rainy days is February (10.7 days).
Average daylight in September /
Average sunshine in September
Eltham, New Zealand
- Average daylight in September: 11h and 5min
The month with the longest days is December (Average daylight: 14h and 54min).
The month with the shortest days is June (Average daylight: 9h and 24min).
- Average sunshine in September: 6h and 2min
The month with the most sunshine is December (Average sunshine: 8h and 30min).
The month with the least sunshine is June (Average sunshine: 6h and 6min).
Average sunshine days in September
Eltham, New Zealand
- Average sunshine days in September: 8.2 days
The month with the most sunshine days is January (15.7 days).
The month with the least sunshine days is September (8.2 days).
Average UV index in September
Eltham, New Zealand
- Average UV index in September: 4
The months with the highest UV index are January, February, March and December (UV index 5).
The months with the lowest UV index are May, June and July (UV index 3).
Average cloud cover in September
Eltham, New Zealand
- Average cloud cover in September: 50
The month with the most cloud cover is June (Cloud cover 51).
The months with the least cloud cover are January and February (Cloud cover 37).
Average visibility in September
Eltham, New Zealand
- 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).
