September weather forecast
Karetu, New Zealand

September

Weather in September

The first month of the spring, September, is also a moderate month in Karetu, New Zealand, with temperature in the range of an average low of 10.4°C (50.7°F) and an average high of 15.5°C (59.9°F).

Temperature

September welcomes an average high-temperature of a still moderate 15.5°C (59.9°F), not much different from the preceding month. An average temperature of 10.4°C (50.7°F) marks the nights in September.

Humidity

In September, the average relative humidity in Karetu, New Zealand, is 80%.

Rainfall

In Karetu, in September, it is raining for 14.3 days, with typically 44mm (1.73") of accumulated precipitation. Throughout the year, there are 154 rainfall days, and 536mm (21.1") of precipitation is accumulated.

Daylight

The average length of the day in September in Karetu is 11h and 52min.
On the first day of September in Karetu, sunrise is at 6:42 am and sunset at 6:04 pm NZST. On the last day of the month, sunrise is at 7:00 am and sunset at 7:25 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 Karetu, New Zealand, is 6.9h.

UV index

The average daily maximum UV index in September in Karetu is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index of 4 during September translates into these guidelines:
Exercise prevention - Precautions against solar damage are endorsed. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.

Frequently asked questions

What are September temperatures in Karetu?
The high-temperature, in September, in Karetu, records 15.5°C (59.9°F), while the low-temperature is 10.4°C (50.7°F).
What is the average humidity in September in Karetu?
The average relative humidity in September is 80%.
How much does it rain in Karetu in September?
In September, in Karetu, the rain falls for 14.3 days. Throughout September, 44mm (1.73") of precipitation is accumulated.
How many hours of daylight does Karetu have in September?
In September, the average day length in Karetu, New Zealand, is 11h and 52min.
What time are sunrise and sunset in September in Karetu?
On the first day of September, sunrise is at 6:42 am and sunset at 6:04 pm NZST. On the last day of the month, sunrise is at 7:00 am and sunset at 7:25 pm NZDT.
When does Daylight Saving Time (DST) start in September in Karetu?
On Sunday, 29. September 2024, at 2:00 am, Daylight Saving Time starts in Karetu, New Zealand, and the time zone changes from NZST to NZDT. DST ends on Sunday, 06. April 2025, at 3:00 am.
How long on average sun shines in September in Karetu?
In Karetu, the average sunshine duration in September is 6.9h.
What is the UV index reading in September in Karetu?
In Karetu, New Zealand, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
Karetu, New Zealand
  • Average high temperature in September: 15.5°C

The warmest month (with the highest average high temperature) is February (22.8°C).
The month with the lowest average high temperature is July (14.3°C).

  • Average low temperature in September: 10.4°C

The month with the highest average low temperature is February (16.5°C).
The coldest month (with the lowest average low temperature) is July (9.8°C).

Average pressure in September
Karetu, New Zealand
  • Average pressure in September: 1015.2mbar

The months with the highest atmospheric pressure are March and April (1018.1mbar).
The month with the lowest atmospheric pressure is January (1015mbar).

Average wind speed in September
Karetu, New Zealand
  • Average wind speed in September: 16.7km/h

The windiest month (with the highest average wind speed) is September (16.7km/h).
The calmest month (with the lowest average wind speed) is February (13km/h).

Average humidity in September
Karetu, New Zealand
  • Average humidity in September: 80%

The month with the highest relative humidity is August (82%).
The months with the lowest relative humidity are January and November (78%).

Average rainfall in September
Karetu, New Zealand
  • Average rainfall in September: 44mm

The wettest month (with the highest rainfall) is July (69mm).
The driest month (with the least rainfall) is November (26mm).

Average rainfall days in September
Karetu, New Zealand
  • Average rainfall days in September: 14.3 days

The month with the highest number of rainy days is August (16.8 days).
The month with the least rainy days is January (7.9 days).

Average daylight in September /
Average sunshine in September
Karetu, New Zealand
  • Average daylight in September: 11h and 5min

The month with the longest days is December (Average daylight: 14h and 30min).
The month with the shortest days is June (Average daylight: 9h and 48min).

  • Average sunshine in September: 6h and 5min

The month with the most sunshine is January (Average sunshine: 7h and 54min).
The month with the least sunshine is August (Average sunshine: 6h and 36min).

Average sunshine days in September
Karetu, New Zealand
  • Average sunshine days in September: 11.8 days

The month with the most sunshine days is January (20.6 days).
The month with the least sunshine days is August (10.5 days).

Average UV index in September
Karetu, New Zealand
  • Average UV index in September: 4

The months with the highest UV index are January, February, March, November and December (UV index 5).
The month with the lowest UV index is July (UV index 3).

Average cloud cover in September
Karetu, New Zealand
  • Average cloud cover in September: 45

The month with the most cloud cover is August (Cloud cover 46).
The month with the least cloud cover is January (Cloud cover 35).

Average visibility in September
Karetu, New Zealand
  • Average visibility in September: 9km

The months with the highest visibility are March, April, May and June (10km).
The months with the lowest visibility are January, February, July, August, September, October, November and December (9km).

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