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Weather in New Plymouth for September 2025

Your guide to New Plymouth weather in September - trends and predictions

    Temperatures

  • The forecast for the first days of September 2025 in New Plymouth predicts temperatures to be around 13 °C, close to the historical average.

  • In general, the average temperature in New Plymouth at the beginning of September is 13 °C. As the month progressed, temperatures tended to slightly increase, reaching an average of 13.4 °C by the end of September.

    • Rain 🌧️

  • New Plymouth experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 172.8 mm.

Average dry days
5
Dry days
Average rainy days
25
Rainy days
Average snowy days
0
Snow days
Average temperatures
13°/9°
Temperatures
Average wind speed
26 km/h
Avg max wind
Average humidity
81 %
Avg humidity

New Plymouth Weather September

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

Temperatures trend during September in New Plymouth

See the weather trend as well as the moving average line

September weather in New Plymouth day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Patchy rain possible
Patchy rain possible
 13° /9° 1.9 mm 4
2 Sept. Patchy rain possible
Patchy rain possible
 13° /10° 1.6 mm 4
3 Sept. Patchy rain possible
Patchy rain possible
 13° /11° 1.1 mm 4
4 Sept. Patchy rain possible
Patchy rain possible
 13° /10° 1.1 mm 4
5 Sept. Patchy rain possible
Patchy rain possible
 14° /10° 1.1 mm 4
6 Sept. Patchy rain possible
Patchy rain possible
 13° /11° 4.3 mm 4
7 Sept. Patchy rain possible
Patchy rain possible
 12° /9° 0.3 mm 4
8 Sept. Patchy rain possible
Patchy rain possible
 12° /8° 0.4 mm 3
9 Sept. Patchy rain possible
Patchy rain possible
 11° /8° 0.9 mm 3
10 Sept. Overcast
Overcast
 14° /9° 1.3 mm 4
11 Sept. Light rain shower
Light rain shower
 14° /8° 10.7 mm 4
12 Sept. Overcast
Overcast
 13° /8° 0.1 mm 4
13 Sept. Partly cloudy
Partly cloudy
 14° /10° 2.4 mm 4
14 Sept. Partly cloudy
Partly cloudy
 13° /9° 13.4 mm 4
15 Sept. Cloudy
Cloudy
 14° /8° 0.2 mm 4
16 Sept. Overcast
Overcast
 13° /7° 9.5 mm 4
17 Sept. Patchy rain possible
Patchy rain possible
 12° /8° 2.4 mm 4
18 Sept. Partly cloudy
Partly cloudy
 13° /7° 1.8 mm 4
19 Sept. Cloudy
Cloudy
 14° /9° 5.1 mm 4
20 Sept. Mist
Mist
 15° /11° 9 mm 4
21 Sept. Sunny
Sunny
 14° /10° 0.4 mm 5
22 Sept. Light rain shower
Light rain shower
 15° /11° 5.9 mm 4
23 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 14° /10° 21.1 mm 4
24 Sept. Patchy rain possible
Patchy rain possible
 14° /8° 1.5 mm 4
25 Sept. Light drizzle
Light drizzle
 12° /8° 2 mm 4
26 Sept. Light rain shower
Light rain shower
 13° /8° 12.6 mm 4
27 Sept. Patchy rain possible
Patchy rain possible
 14° /8° 3.1 mm 4
28 Sept. Light rain shower
Light rain shower
 14° /7° 2.4 mm 4
29 Sept. Light rain shower
Light rain shower
 14° /8° 3.3 mm 4
30 Sept. Light rain shower
Light rain shower
 13° /5° 6.4 mm 4
Next
Important Notice
Our weather forecast for New Plymouth 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 New Plymouth forecast closer to your planned date for the most up-to-date weather information.
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New Plymouth in September - FAQ

What are the expected maximum and minimum temperatures in New Plymouth during September?
During September, expect a variety of temperatures with highs around 13° and lows near 9°, suitable for diverse activities and preferences.
How much rainfall should be expected in New Plymouth during September?
Significant rainfall exceeding 172.8 mm is expected in New Plymouth during September, occurring over more than 25 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in New Plymouth during September?
The average wind speed in New Plymouth during September is 26 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in New Plymouth

Explore the daily rainfall trends and prepare for New Plymouths September weather 💧

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Location coordinates Where is New Plymouth?

Get accurate weather forecasts for New Plymouth, located at latitude -39.067 and longitude 174.083. Stay updated with localized weather information tailored for New Plymouth.

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