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Australia weather

Weather in Wellington for September 2026

Your guide to Wellington weather in September - trends and predictions

    Temperatures

  • In general, the average temperature in Wellington at the beginning of September is 19.4 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 20.6 °C by the end of September.

    • Rain 🌧️

  • The climate of Wellington in September is notably wet, with an average of 14 rainy days, and a total of 49.3 mm of precipitation.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
16
Dry days
Average rainy days
14
Rainy days
Average snowy days
0
Snow days
Average temperatures
19°/6°
Temperatures
Average wind speed
18 km/h
Avg max wind
Average humidity
64 %
Avg humidity

Wellington Weather September

Move between months or click on a day
August
October
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Cloudy
17°
2
Mist
17°
3
Mist
17°
4
Overcast
21°
5
Mist
18°
6
Sunny
23°
7
Overcast
23°
8
Light drizzle
19°
9
Light drizzle
16°
10
Cloudy
16°
11
Cloudy
18°
12
Patchy rain possible
18°
13
Mist
20°
14
Sunny
20°
15
Partly cloudy
22°
16
Sunny
20°
17
Partly cloudy
19°
18
Sunny
21°
19
Patchy rain possible
24°
20
Light rain
17°
21
Light rain shower
16°
22
Sunny
16°
23
Mist
19°
24
Mist
22°
25
Light rain
17°
26
Patchy rain possible
17°
27
Fog
20°
28
Sunny
21°
29
Sunny
24°
30
Sunny
23°

Temperatures trend during September in Wellington

See the weather trend as well as the moving average line

September weather in Wellington day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Cloudy
Cloudy
 17° /7° 0.1 mm 5
2 Sept. Mist
Mist
 17° /4° 3.1 mm 5
3 Sept. Mist
Mist
 17° /5° 0.4 mm 5
4 Sept. Overcast
Overcast
 21° /4° 2 mm 6
5 Sept. Mist
Mist
 18° /5° 10.2 mm 6
6 Sept. Sunny
Sunny
 23° /4° 4.5 mm 7
7 Sept. Overcast
Overcast
 23° /7° 0.3 mm 6
8 Sept. Light drizzle
Light drizzle
 19° /7° 1.5 mm 5
9 Sept. Light drizzle
Light drizzle
 16° /6° 0.6 mm 5
10 Sept. Cloudy
Cloudy
 16° /4° 5.1 mm 5
11 Sept. Cloudy
Cloudy
 18° /6° 2.8 mm 5
12 Sept. Patchy rain possible
Patchy rain possible
 18° /4° 0.1 mm 5
13 Sept. Mist
Mist
 20° /6° 0 mm 5
14 Sept. Sunny
Sunny
 20° /6° 2.8 mm 6
15 Sept. Partly cloudy
Partly cloudy
 22° /6° 0 mm 7
16 Sept. Sunny
Sunny
 20° /7° 2 mm 6
17 Sept. Partly cloudy
Partly cloudy
 19° /7° 0 mm 6
18 Sept. Sunny
Sunny
 21° /5° 0 mm 7
19 Sept. Patchy rain possible
Patchy rain possible
 24° /8° 0.7 mm 6
20 Sept. Light rain
Light rain
 17° /6° 2.3 mm 5
21 Sept. Light rain shower
Light rain shower
 16° /7° 1.3 mm 5
22 Sept. Sunny
Sunny
 16° /5° 1.9 mm 5
23 Sept. Mist
Mist
 19° /5° 0 mm 6
24 Sept. Mist
Mist
 22° /6° 0.3 mm 6
25 Sept. Light rain
Light rain
 17° /7° 5.3 mm 5
26 Sept. Patchy rain possible
Patchy rain possible
 17° /7° 0.4 mm 5
27 Sept. Fog
Fog
 20° /5° 0 mm 6
28 Sept. Sunny
Sunny
 21° /4° 0 mm 6
29 Sept. Sunny
Sunny
 24° /5° 1.3 mm 7
30 Sept. Sunny
Sunny
 23° /7° 0.2 mm 6
Next
Important Notice
Our weather forecast for Wellington in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Wellington forecast closer to your planned date for the most up-to-date weather information.
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Wellington in September - FAQ

What are the expected maximum and minimum temperatures in Wellington during September?

Enjoy moderate daytime temperatures of up to 19° and cooler nights around 6°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Wellington during September?

In September, Wellington can expect light to moderate rainfall, totaling 49.3 mm across approximately 14 days. Occasional showers are possible, and planning ahead for them could be helpful.

What are the typical wind conditions in Wellington during September?

The average wind speed in Wellington during September is 18 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Wellington

Explore the daily rainfall trends and prepare for Wellingtons September weather 💧
Typically, Wellington has 14 rainy days in September with a total of 49.3 mm of rainfall.

UV exposure in Wellington during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Location coordinates Where is Wellington?

Get accurate weather forecasts for Wellington, located at latitude -38.111 and longitude 147.068. Stay updated with localized weather information tailored for Wellington.

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