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
September brings a marginal elevation to a fresh 10.5°C (50.9°F) from August's 9.5°C (49.1°F) in Port Chalmers's average high-temperatures. Port Chalmers's average nighttime temperature in September modestly descends to a frosty 6.8°C (44.2°F).Humidity
The average relative humidity in September in Port Chalmers is 77%.Rainfall
September is the month with the least rainfall in Port Chalmers. Rain falls for 11.4 days and accumulates 16mm (0.63") of precipitation.Snowfall
January through July, September through December are months without snowfall in Port Chalmers, New Zealand.Daylight
In Port Chalmers, the average length of the day in September is 11h and 46min.On the first day of the month, sunrise is at 7:06 am and sunset at 6:08 pm NZST. On the last day of September, in Port Chalmers, sunrise is at 7:10 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 Port Chalmers, the average sunshine in September is 7.3h.UV index
The months with the lowest UV index 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 unsafe exposure to UV radiation for the ordinary person.Note: In September, the maximum UV index of 3 suggests this advice:
Take necessary precautions - Defending against sun damage is advocated. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Opt for tightly woven and loose clothing to enhance protection from the Sun. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Port Chalmers in September?
What is the average humidity in September in Port Chalmers?
What is the driest month in Port Chalmers?
How much does it rain in Port Chalmers in September?
When it does not snow in Port Chalmers?
Does it snow in Port Chalmers in September?
What is the average length of the day in September in Port Chalmers?
When is the sunrise / sunset in September in Port Chalmers?
When does Daylight Saving Time (DST) start in September in Port Chalmers?
How many hours of sunshine does Port Chalmers have in September?
When is the lowest UV index in Port Chalmers?
What is the UV index reading in September in Port Chalmers?
Average temperature in September
Port Chalmers, 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
Port Chalmers, 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
Port Chalmers, 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
Port Chalmers, 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
Port Chalmers, 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
Port Chalmers, 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
Port Chalmers, 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
Port Chalmers, 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 daylight in September /
Average sunshine in September
Port Chalmers, 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
Port Chalmers, 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
Port Chalmers, 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
Port Chalmers, 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
Port Chalmers, 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).
