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 sea temperature 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
The advent of September brings an average high-temperature of a cool 10.5°C (50.9°F), exhibiting minor difference from the previous month. Dunedin encounters a small divergence from daytime high temperatures, averaging a low-temperature of 6.8°C (44.2°F) during September nights.Humidity
In September, the average relative humidity is 77%.Rainfall
September is the month with the least rainfall in Dunedin, New Zealand. Rain falls for 11.4 days and accumulates 16mm (0.63") of precipitation.Snowfall
In Dunedin, snow does not fall in January through July, September through December.Sea temperature
In Dunedin, the average seawater temperature in September is 9.3°C (48.7°F).Note: Immersing oneself in 9.3°C (48.7°F) at sub-10°C (14°F) temperatures is a recipe for harsh cold shock and quickened breathing unless adequately equipped.
Daylight
In September, the average length of the day is 11h and 46min.On the first day of September, sunrise is at 7:07 am and sunset at 6:08 pm NZST. On the last day of the month, sunrise is at 7:11 am and sunset at 7:44 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 7.3h.UV index
The months with the lowest UV index in Dunedin are April through October, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 3 in September interprets into the following advice:
Undertake protective steps - Preventing sun damage is advised. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Frequently asked questions
What are the temperatures in Dunedin in September?
What is the average humidity in September in Dunedin?
What is the driest month in Dunedin?
How much does it rain in Dunedin in September?
When it does not snow in Dunedin?
Does it snow in Dunedin in September?
How cold is the water in September in Dunedin?
How many hours of daylight does Dunedin have in September?
When is the sunrise / sunset in September in Dunedin?
When does Daylight Saving Time (DST) start in September in Dunedin?
How many hours of sunshine does Dunedin have in September?
What are the months with the lowest UV index in Dunedin?
What is the UV index reading in September in Dunedin?
Average temperature in September
Dunedin, New Zealand
- Average high temperature in September: 10.5°C
The warmest month (with the highest average high temperature) is February (15.8°C).
The month with the lowest average high temperature is July (9.2°C).
- Average low temperature in September: 6.8°C
The month with the highest average low temperature is February (11.7°C).
The coldest month (with the lowest average low temperature) is July (6.3°C).
Average pressure in September
Dunedin, New Zealand
- Average pressure in September: 1009.8mbar
The month with the highest atmospheric pressure is March (1016.2mbar).
The month with the lowest atmospheric pressure is November (1009.7mbar).
Average wind speed in September
Dunedin, New Zealand
- Average wind speed in September: 21.1km/h
The windiest month (with the highest average wind speed) is June (21.8km/h).
The calmest month (with the lowest average wind speed) is February (18.4km/h).
Average humidity in September
Dunedin, New Zealand
- Average humidity in September: 77%
The months with the highest relative humidity are March and December (80%).
The month with the lowest relative humidity is July (76%).
Average rainfall in September
Dunedin, New Zealand
- Average rainfall in September: 16mm
The wettest month (with the highest rainfall) is February (43mm).
The driest month (with the least rainfall) is September (16mm).
Average rainfall days in September
Dunedin, New Zealand
- Average rainfall days in September: 11.4 days
The month with the highest number of rainy days is October (15.6 days).
The month with the least rainy days is March (11.1 days).
Average snowfall in September
Dunedin, New Zealand
- Average snowfall in September: 0mm
The month with the highest snowfall is August (3mm).
The months with the least snowfall are January, February, March, April, May, June, July, September, October, November and December (0mm).
Average snowfall days in September
Dunedin, New Zealand
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is August (0.7 days).
The months with the least snowfall days are January, February, March, April, May, October and December (0 days).
Average sea temperature in September
Dunedin, New Zealand
- Average sea temperature in September: 9.3°C
The best month for swimming (with the highest average sea temperature) is February (13.8°C).
The coldest month (with the lowest average sea temperature) is August (9.2°C).
Average daylight in September /
Average sunshine in September
Dunedin, New Zealand
- Average daylight in September: 11h and 5min
The month with the longest days is December (Average daylight: 15h and 42min).
The month with the shortest days is June (Average daylight: 8h and 42min).
- Average sunshine in September: 7h and 2min
The month with the most sunshine is December (Average sunshine: 10h and 36min).
The month with the least sunshine is June (Average sunshine: 4h and 30min).
Average sunshine days in September
Dunedin, New Zealand
- Average sunshine days in September: 14.9 days
The month with the most sunshine days is March (17.9 days).
The month with the least sunshine days is January (13.4 days).
Average UV index in September
Dunedin, 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
Dunedin, New Zealand
- Average cloud cover in September: 43
The month with the most cloud cover is January (Cloud cover 45).
The month with the least cloud cover is March (Cloud cover 40).
Average visibility in September
Dunedin, 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).
Dunedin, New Zealand
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