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 snowfall in September
- Average snowfall 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
During September, Denniston records an average high-temperature of a still cool 11.9°C (53.4°F), marking a slight divergence from August's 11.4°C (52.5°F). In Denniston, nights during September observe an average temperature decrease to a chilly 7.6°C (45.7°F).Humidity
In September, the average relative humidity is 80%.Rainfall
In Denniston, in September, during 20 rainfall days, 145mm (5.71") of precipitation is typically accumulated. Throughout the year, there are 222.4 rainfall days, and 1480mm (58.27") of precipitation is accumulated.Snowfall
January through June, August through December are months without snowfall.Daylight
In September, the average length of the day is 11h and 49min.On the first day of the month, sunrise is at 6:57 am and sunset at 6:08 pm NZST. On the last day of September, sunrise is at 7:07 am and sunset at 7:37 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 Denniston, the average sunshine in September is 6.4h.UV index
In September, the average daily maximum UV index in Denniston is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: An average maximum UV index of 4 in September leads to these recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Denniston?
What is the average humidity in September in Denniston?
How much does it rain in Denniston in September?
When it does not snow in Denniston?
How many hours of daylight does Denniston have in September?
What time are sunrise and sunset in September in Denniston?
When does Daylight Saving Time (DST) start in September in Denniston?
How long on average sun shines in September in Denniston?
What is the UV index reading in September in Denniston?
Average temperature in September
Denniston, New Zealand
- Average high temperature in September: 11.9°C
The warmest month (with the highest average high temperature) is February (18.5°C).
The month with the lowest average high temperature is July (10.7°C).
- Average low temperature in September: 7.6°C
The months with the highest average low temperature are January and February (13.3°C).
The coldest month (with the lowest average low temperature) is July (7.2°C).
Average pressure in September
Denniston, New Zealand
- Average pressure in September: 1012.5mbar
The month with the highest atmospheric pressure is March (1017.9mbar).
The month with the lowest atmospheric pressure is September (1012.5mbar).
Average wind speed in September
Denniston, New Zealand
- Average wind speed in September: 15.3km/h
The windiest month (with the highest average wind speed) is October (15.6km/h).
The calmest month (with the lowest average wind speed) is March (12km/h).
Average humidity in September
Denniston, New Zealand
- Average humidity in September: 80%
The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is July (79%).
Average rainfall in September
Denniston, New Zealand
- Average rainfall in September: 145mm
The wettest month (with the highest rainfall) is October (153mm).
The driest month (with the least rainfall) is February (69mm).
Average rainfall days in September
Denniston, New Zealand
- Average rainfall days in September: 20 days
The month with the highest number of rainy days is October (22.2 days).
The month with the least rainy days is February (14.2 days).
Average snowfall in September
Denniston, New Zealand
- Average snowfall in September: 0mm
The month with the highest snowfall is July (1mm).
The months with the least snowfall are January, February, March, April, May, June, August, September, October, November and December (0mm).
Average snowfall days in September
Denniston, New Zealand
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is July (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Denniston, New Zealand
- Average daylight in September: 11h and 5min
The month with the longest days is December (Average daylight: 15h and 6min).
The month with the shortest days is June (Average daylight: 9h and 12min).
- Average sunshine in September: 6h and 2min
The month with the most sunshine is December (Average sunshine: 8h and 48min).
The month with the least sunshine is June (Average sunshine: 5h and 30min).
Average sunshine days in September
Denniston, New Zealand
- Average sunshine days in September: 7.7 days
The month with the most sunshine days is March (13 days).
The month with the least sunshine days is October (7.1 days).
Average UV index in September
Denniston, New Zealand
- Average UV index in September: 4
The months with the highest UV index are January and February (UV index 5).
The months with the lowest UV index are May, June, July and August (UV index 3).
Average cloud cover in September
Denniston, New Zealand
- Average cloud cover in September: 51
The month with the most cloud cover is October (Cloud cover 55).
The month with the least cloud cover is February (Cloud cover 43).
Average visibility in September
Denniston, New Zealand
- Average visibility in September: 9km
The months with the highest visibility are February, March and June (10km).
The months with the lowest visibility are January, April, May, July, August, September, October, November and December (9km).
