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
Weather in September
Temperature
September records an average high-temperature of a still fresh 10.8°C (51.4°F), indicating a minor variation from the preceding month. Greymouth maintains an average of approximately a frosty 6.5°C (43.7°F) during September nights, with only a minimal decrease from the daytime temperature.Humidity
In September, the average relative humidity is 78%.Rainfall
In September, in Greymouth, the rain falls for 4.4 days. Throughout September, 11mm (0.43") of precipitation is accumulated. Throughout the year, in Greymouth, there are 61 rainfall days, and 259mm (10.2") of precipitation is accumulated.Daylight
In Greymouth, the average length of the day in September is 11h and 48min.On the first day of the month, sunrise is at 7:00 am and sunset at 6:09 pm NZST. On the last day of September, in Greymouth, sunrise is at 7:09 am and sunset at 7:40 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 Greymouth is 6.9h.UV index
April through October, with an average maximum UV index of 3, are months with the lowest UV index in Greymouth. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 3 in September, converts into the following recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Frequently asked questions
What are the temperatures in Greymouth in September?
What is the average humidity in September in Greymouth?
How much does it rain in Greymouth in September?
How many hours of daylight does Greymouth have in September?
When are sunrise and sunset in September in Greymouth?
When does Daylight Saving Time (DST) start in September in Greymouth?
How long on average sun shines in September in Greymouth?
What is the month with the lowest UV index in Greymouth?
How high is the UV index in September in Greymouth?
Average temperature in September
Greymouth, New Zealand
- Average high temperature in September: 10.8°C
The warmest month (with the highest average high temperature) is February (17.6°C).
The month with the lowest average high temperature is July (9.5°C).
- Average low temperature in September: 6.5°C
The month with the highest average low temperature is February (12.5°C).
The coldest month (with the lowest average low temperature) is July (5.7°C).
Average pressure in September
Greymouth, New Zealand
- Average pressure in September: 1011.9mbar
The month with the highest atmospheric pressure is March (1017.5mbar).
The month with the lowest atmospheric pressure is September (1011.9mbar).
Average wind speed in September
Greymouth, New Zealand
- Average wind speed in September: 12.7km/h
The windiest month (with the highest average wind speed) is October (13km/h).
The calmest month (with the lowest average wind speed) is March (10.7km/h).
Average humidity in September
Greymouth, New Zealand
- Average humidity in September: 78%
The months with the highest relative humidity are January, April, August, October, November and December (79%).
The months with the lowest relative humidity are June and July (77%).
Average rainfall in September
Greymouth, New Zealand
- Average rainfall in September: 11mm
The wettest month (with the highest rainfall) is November (40mm).
The driest month (with the least rainfall) is June (9mm).
Average rainfall days in September
Greymouth, New Zealand
- Average rainfall days in September: 4.4 days
The month with the highest number of rainy days is October (6.1 days).
The month with the least rainy days is February (3.5 days).
Average daylight in September /
Average sunshine in September
Greymouth, New Zealand
- Average daylight in September: 11h and 5min
The month with the longest days is December (Average daylight: 15h and 12min).
The month with the shortest days is June (Average daylight: 9h and 6min).
- Average sunshine in September: 6h and 5min
The month with the most sunshine is December (Average sunshine: 9h and 48min).
The months with the least sunshine are June and July (Average sunshine: 5h and 48min).
Average sunshine days in September
Greymouth, New Zealand
- Average sunshine days in September: 23.1 days
The month with the most sunshine days is March (26.3 days).
The month with the least sunshine days is October (21.7 days).
Average UV index in September
Greymouth, New Zealand
- Average UV index in September: 3
The months with the highest UV index are January, February, March, November and December (UV index 4).
The months with the lowest UV index are April, May, June, July, August, September and October (UV index 3).
Average cloud cover in September
Greymouth, New Zealand
- Average cloud cover in September: 45
The month with the most cloud cover is October (Cloud cover 48).
The month with the least cloud cover is February (Cloud cover 37).
Average visibility in September
Greymouth, 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).
Greymouth, New Zealand
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