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New Plymouth weather by month
Check out New Plymouth weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.
Temperature in New Plymouth (°C)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max temperature (daytime) | 21 |
22 |
21 |
18 |
15 |
13 |
13 |
13 |
14 |
16 |
18 |
20 |
| Min temperature (night-time) | 13 |
13 |
12 |
10 |
8 |
6 |
5 |
6 |
7 |
8 |
10 |
12 |
| Heat & Humidity | 0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
| Sea temperature | 19 |
20 |
19 |
18 |
17 |
15 |
14 |
13 |
14 |
14 |
15 |
17 |
Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme
Sunshine & UV index in New Plymouth
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daily hours of sunshine | ||||||||||||
| Daily hours of daylight | 15 |
14 |
12 |
11 |
10 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
| UV Index (Maximum) | 11 |
10 |
7 |
4 |
2 |
2 |
2 |
3 |
4 |
6 |
9 |
11 |
Rainfall in New Plymouth
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Number of days with some rain | 12 |
10 |
12 |
12 |
15 |
16 |
18 |
17 |
16 |
17 |
14 |
13 |
| Average monthly rainfall (mm) | 128 |
108 |
130 |
133 |
160 |
175 |
181 |
160 |
142 |
145 |
139 |
131 |
More about New Plymouth
New Plymouth by month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Recommended for New Zealand
Expires at 23:59 on Sunday 31st May 2026
The climate guide for New Zealand (New Plymouth) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
What's the climate like in New Plymouth?
New Plymouth has a temperate climate with warm summers and some rainfall in all months.
New Plymouth weather in January
Expect daytime maximum temperatures of 21°C in New Plymouth, New Zealand in January based on long-term weather averages. There are 8 hours of sunshine per day on average with 12 days with some rainfall and typically 128 mm of rainfall in the month.
- 21°C max day temperature
21 - 8 hours of sunshine per day
- 12 days with some rainfall
12 - 13°C min night temperature
13 - 15 hours of daylight per day
15 - No heat & humidity
0 - 128 mm of monthly rainfall
128 - 11 (Extreme) UV index
11 - 19°C sea temperature
19
New Plymouth weather in February
Expect daytime maximum temperatures of 22°C in New Plymouth, New Zealand in February based on long-term weather averages. There are 8 hours of sunshine per day on average with 10 days with some rainfall and typically 108 mm of rainfall in the month.
- 22°C max day temperature
22 - 8 hours of sunshine per day
- 10 days with some rainfall
10 - 13°C min night temperature
13 - 14 hours of daylight per day
14 - No heat & humidity
0 - 108 mm of monthly rainfall
108 - 10 (Very High) UV index
10 - 20°C sea temperature
20
New Plymouth weather in March
Expect daytime maximum temperatures of 21°C in New Plymouth, New Zealand in March based on long-term weather averages. There are 6 hours of sunshine per day on average with 12 days with some rainfall and typically 130 mm of rainfall in the month.
- 21°C max day temperature
21 - 6 hours of sunshine per day
- 12 days with some rainfall
12 - 12°C min night temperature
12 - 12 hours of daylight per day
12 - No heat & humidity
0 - 130 mm of monthly rainfall
130 - 7 (High) UV index
7 - 19°C sea temperature
19
New Plymouth weather in April
Expect daytime maximum temperatures of 18°C in New Plymouth, New Zealand in April based on long-term weather averages. There are 6 hours of sunshine per day on average with 12 days with some rainfall and typically 133 mm of rainfall in the month.
- 18°C max day temperature
18 - 6 hours of sunshine per day
- 12 days with some rainfall
12 - 10°C min night temperature
10 - 11 hours of daylight per day
11 - No heat & humidity
0 - 133 mm of monthly rainfall
133 - 4 (Moderate) UV index
4 - 18°C sea temperature
18
New Plymouth weather in May
Expect daytime maximum temperatures of 15°C in New Plymouth, New Zealand in May based on long-term weather averages. There are 4 hours of sunshine per day on average with 15 days with some rainfall and typically 160 mm of rainfall in the month.
- 15°C max day temperature
15 - 4 hours of sunshine per day
- 15 days with some rainfall
15 - 8°C min night temperature
8 - 10 hours of daylight per day
10 - No heat & humidity
0 - 160 mm of monthly rainfall
160 - 2 (Low) UV index
2 - 17°C sea temperature
17
New Plymouth weather in June
Expect daytime maximum temperatures of 13°C in New Plymouth, New Zealand in June based on long-term weather averages. There are 4 hours of sunshine per day on average with 16 days with some rainfall and typically 175 mm of rainfall in the month.
- 13°C max day temperature
13 - 4 hours of sunshine per day
- 16 days with some rainfall
16 - 6°C min night temperature
6 - 9 hours of daylight per day
9 - No heat & humidity
0 - 175 mm of monthly rainfall
175 - 2 (Low) UV index
2 - 15°C sea temperature
15
New Plymouth weather in July
Expect daytime maximum temperatures of 13°C in New Plymouth, New Zealand in July based on long-term weather averages. There are 4 hours of sunshine per day on average with 18 days with some rainfall and typically 181 mm of rainfall in the month.
- 13°C max day temperature
13 - 4 hours of sunshine per day
- 18 days with some rainfall
18 - 5°C min night temperature
5 - 10 hours of daylight per day
10 - No heat & humidity
0 - 181 mm of monthly rainfall
181 - 2 (Low) UV index
2 - 14°C sea temperature
14
New Plymouth weather in August
Expect daytime maximum temperatures of 13°C in New Plymouth, New Zealand in August based on long-term weather averages. There are 5 hours of sunshine per day on average with 17 days with some rainfall and typically 160 mm of rainfall in the month.
- 13°C max day temperature
13 - 5 hours of sunshine per day
- 17 days with some rainfall
17 - 6°C min night temperature
6 - 11 hours of daylight per day
11 - No heat & humidity
0 - 160 mm of monthly rainfall
160 - 3 (Moderate) UV index
3 - 13°C sea temperature
13
New Plymouth weather in September
Expect daytime maximum temperatures of 14°C in New Plymouth, New Zealand in September based on long-term weather averages. There are 5 hours of sunshine per day on average with 16 days with some rainfall and typically 142 mm of rainfall in the month.
- 14°C max day temperature
14 - 5 hours of sunshine per day
- 16 days with some rainfall
16 - 7°C min night temperature
7 - 12 hours of daylight per day
12 - No heat & humidity
0 - 142 mm of monthly rainfall
142 - 4 (Moderate) UV index
4 - 14°C sea temperature
14
New Plymouth weather in October
Expect daytime maximum temperatures of 16°C in New Plymouth, New Zealand in October based on long-term weather averages. There are 6 hours of sunshine per day on average with 17 days with some rainfall and typically 145 mm of rainfall in the month.
- 16°C max day temperature
16 - 6 hours of sunshine per day
- 17 days with some rainfall
17 - 8°C min night temperature
8 - 13 hours of daylight per day
13 - No heat & humidity
0 - 145 mm of monthly rainfall
145 - 6 (High) UV index
6 - 14°C sea temperature
14
New Plymouth weather in November
Expect daytime maximum temperatures of 18°C in New Plymouth, New Zealand in November based on long-term weather averages. There are 7 hours of sunshine per day on average with 14 days with some rainfall and typically 139 mm of rainfall in the month.
- 18°C max day temperature
18 - 7 hours of sunshine per day
- 14 days with some rainfall
14 - 10°C min night temperature
10 - 14 hours of daylight per day
14 - No heat & humidity
0 - 139 mm of monthly rainfall
139 - 9 (Very High) UV index
9 - 15°C sea temperature
15
New Plymouth weather in December
Expect daytime maximum temperatures of 20°C in New Plymouth, New Zealand in December based on long-term weather averages. There are 7 hours of sunshine per day on average with 13 days with some rainfall and typically 131 mm of rainfall in the month.
- 20°C max day temperature
20 - 7 hours of sunshine per day
- 13 days with some rainfall
13 - 12°C min night temperature
12 - 15 hours of daylight per day
15 - No heat & humidity
0 - 131 mm of monthly rainfall
131 - 11 (Extreme) UV index
11 - 17°C sea temperature
17
More about New Plymouth
New Plymouth by month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Recommended for New Zealand
- Save up to 15% on 5+ day car hire with Spaceship Rentals
- Book in advance for pick-ups across New Zealand
- Travel between 1st Sep 2026 & 1st Feb 2028 (inclusive)
Expires at 23:59 on Sunday 31st May 2026
The climate guide for New Zealand (New Plymouth) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Tropical storm risk: New Plymouth, New Zealand cyclone season
Compare New Plymouth weather with the UK
The weather chart below compares the average monthly maximum daytime temperature for New Plymouth, New Zealand and the UK (London).
Maximum daytime temperature (°C)
Metric (°C / mm) | Imperial (°F / inches)
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