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
In September, Rai Valley notes an average high-temperature of a still fresh 12.5°C (54.5°F), hardly different from the preceding month. During the month of September, Rai Valley experiences a steady low-temperature average of 4.7°C (40.5°F).Humidity
The average relative humidity in September is 79%.Rainfall
In September, in Rai Valley, the rain falls for 14.2 days. Throughout September, 52mm (2.05") of precipitation is accumulated. Throughout the year, there are 144.7 rainfall days, and 634mm (24.96") of precipitation is accumulated.Snowfall
In Rai Valley, New Zealand, snow does not fall in January through June, August through December.Daylight
In Rai Valley, New Zealand, the average length of the day in September is 11h and 49min.On the first day of September in Rai Valley, New Zealand, sunrise is at 6:49 am and sunset at 6:01 pm NZST. On the last day of the month, sunrise is at 7:00 am and sunset at 7:30 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 is 7.8h.UV index
The months with the lowest UV index in Rai Valley are April through October, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: The average daily UV index of 3 in September transforms into the following instructions:
Heed the precautions - Suggestions to avoid sunburn are made. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Rai Valley in September?
What is the average humidity in September in Rai Valley?
How much does it rain in Rai Valley in September?
When it does not snow in Rai Valley?
How many hours of daylight does Rai Valley have in September?
When is the sunrise / sunset in September in Rai Valley?
When does Daylight Saving Time (DST) start in September in Rai Valley?
How long on average sun shines in September in Rai Valley?
What are the months with the lowest UV index in Rai Valley?
How high is the UV index in September in Rai Valley?
Average temperature in September
Rai Valley, New Zealand
- Average high temperature in September: 12.5°C
The warmest month (with the highest average high temperature) is January (20.7°C).
The month with the lowest average high temperature is July (10.1°C).
- Average low temperature in September: 4.7°C
The month with the highest average low temperature is January (11.6°C).
The coldest month (with the lowest average low temperature) is July (3.8°C).
Average pressure in September
Rai Valley, New Zealand
- Average pressure in September: 1012.5mbar
The month with the highest atmospheric pressure is March (1017.8mbar).
The month with the lowest atmospheric pressure is September (1012.5mbar).
Average wind speed in September
Rai Valley, New Zealand
- Average wind speed in September: 10.5km/h
The windiest month (with the highest average wind speed) is November (11.2km/h).
The calmest month (with the lowest average wind speed) is August (8.9km/h).
Average humidity in September
Rai Valley, New Zealand
- Average humidity in September: 79%
The months with the highest relative humidity are June and August (82%).
The month with the lowest relative humidity is January (75%).
Average rainfall in September
Rai Valley, New Zealand
- Average rainfall in September: 52mm
The wettest month (with the highest rainfall) is December (68mm).
The driest month (with the least rainfall) is February (31mm).
Average rainfall days in September
Rai Valley, New Zealand
- Average rainfall days in September: 14.2 days
The months with the highest number of rainy days are October and December (14.5 days).
The month with the least rainy days is February (7.8 days).
Average snowfall in September
Rai Valley, New Zealand
- Average snowfall in September: 0mm
The month with the highest snowfall is July (2mm).
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
Rai Valley, 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
Rai Valley, 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 18min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is December (Average sunshine: 10h and 12min).
The months with the least sunshine are June and August (Average sunshine: 7h and 30min).
Average sunshine days in September
Rai Valley, New Zealand
- Average sunshine days in September: 13.5 days
The months with the most sunshine days are February and March (17.8 days).
The month with the least sunshine days is December (13.2 days).
Average UV index in September
Rai Valley, New Zealand
- Average UV index in September: 3
The month with the highest UV index is January (UV index 5).
The months with the lowest UV index are April, May, June, July, August, September and October (UV index 3).
Average cloud cover in September
Rai Valley, New Zealand
- Average cloud cover in September: 35
The months with the most cloud cover are June and August (Cloud cover 36).
The month with the least cloud cover is February (Cloud cover 27).
Average visibility in September
Rai Valley, 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).
