New Plymouth in Winter
In winter (June, July and August), New Plymouth sees average daytime highs around 13°C and overnight lows near 10°C, with 551 mm of rain over about 47 wet days across the season. It is the coldest season of the year and the wettest season of the year.
Across winter, daytime highs hold fairly steady around 13°C. The sky is clear or mostly clear about 28% of the time across winter, and the air most often feels dry.
Winter is New Plymouth's weakest season of the year to visit on our travel score. New Plymouth has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see New Plymouth's year-round climate.
- Avg daytime high
- 13°C
- coldest season of the year
- Avg overnight low
- 10°C
- Rainfall
- 551 mm
- 47 wet days
- Avg wind
- 23 km/h
- Travel score
- 3.1
- weakest season of the year
- Months
- Jun · Jul · Aug
Temperature in New Plymouth in Winter
Across winter, daytime highs hold fairly steady around 13°C.
A typical winter day in New Plymouth reaches about 13°C and drops to 10°C overnight. The warmest of the three months is June, the coolest July.
New Plymouth weather by month
How the three winter months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 19° / 16° | 105 | 10.1 | 14.4 | 6.1 |
| Feb | 20° / 17° | 103 | 8.9 | 13.5 | 6.3 |
| Mar | 19° / 16° | 109 | 10.6 | 12.3 | 6.1 |
| Apr | 17° / 14° | 154 | 12.5 | 11 | 5.2 |
| May | 15° / 13° | 183 | 14.1 | 9.9 | 4.3 |
| Jun | 13° / 11° | 185 | 14.6 | 9.3 | 3.4 |
| Jul | 13° / 10° | 189 | 16.2 | 9.5 | 3.0 |
| Aug | 12° / 10° | 177 | 16.2 | 10.5 | 3.0 |
| Sep | 13° / 11° | 173 | 15.6 | 11.7 | 3.2 |
| Oct | 14° / 12° | 171 | 14.9 | 13 | 3.7 |
| Nov | 15° / 13° | 134 | 12.3 | 14.1 | 4.5 |
| Dec | 17° / 15° | 160 | 13.3 | 14.7 | 5.2 |
Cloud cover in Winter
The sky is clear or mostly clear about 28% of the time across winter.
Chance of precipitation in Winter
New Plymouth gets around 551 mm of rain over 47 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 23 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 9 h 30 min in early June to 11 h 06 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 2.2 kWh/m².
Is winter a good time to visit New Plymouth?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter is a weaker month for outdoor sightseeing in New Plymouth.
What to pack for New Plymouth in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, New Plymouth sees daytime highs around 13°C and nights near 10°C. Pack rain gear. Worth having: a warm layer and a windbreaker. About 47 days see rain.
Sea temperature near New Plymouth in Winter
The nearest coast averages about 14°C across winter — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 19 km away) is warmest in February at about 20°C and coldest in August near 14°C.
The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 19 | 20 | 19 | 18 | 17 | 15 | 14 | 14 | 14 | 14 | 16 | 17 |
| Comfort | Cool | Cool | Cool | Cool | Cool | Cool | Bracing | Bracing | Bracing | Bracing | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 19 | Cool |
| Feb | 20 | Cool |
| Mar | 19 | Cool |
| Apr | 18 | Cool |
| May | 17 | Cool |
| Jun | 15 | Cool |
| Jul | 14 | Bracing |
| Aug | 14 | Bracing |
| Sep | 14 | Bracing |
| Oct | 14 | Bracing |
| Nov | 16 | Cool |
| Dec | 17 | Cool |
UV index in New Plymouth in Winter
Clear-sky midday UV across winter averages around 2. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in New Plymouth peaks around January 12 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 17 at about 2 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 12 | 11 | 7 | 5 | 2 | 2 | 2 | 3 | 4 | 7 | 10 | 12 |
| Level | Extreme | Extreme | High | Moderate | Moderate | Low | Moderate | Moderate | Moderate | High | Very high | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 12 | Extreme |
| Feb | 11 | Extreme |
| Mar | 7 | High |
| Apr | 5 | Moderate |
| May | 2 | Moderate |
| Jun | 2 | Low |
| Jul | 2 | Moderate |
| Aug | 3 | Moderate |
| Sep | 4 | Moderate |
| Oct | 7 | High |
| Nov | 10 | Very high |
| Dec | 12 | Extreme |
Where is New Plymouth?
New Plymouth sits at 39.1°S, 174.1°E, 64 m above sea level, in New Zealand. The nearest listed city is Whanganui, 127 km away.
Topography around New Plymouth
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of New Plymouth.
Within 3 km, the terrain around New Plymouth has only modest variations in elevation — a maximum elevation change of 106 m around an average of 43 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 665 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,459 m.
The land around New Plymouth is covered by trees (33%), artificial surfaces (29%) and grassland (21%) within 3 km, water (43%) and grassland (38%) within 16 km, and water (45%), trees (28%) and grassland (26%) within 80 km.
New Zealand travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type I
- 230 V · 50 Hz
- Prices
- ≈ 86% of US
- price level, 2025
- GDP per capita
- $49,591
- 2025
- Happiness
- 7.0 / 10
- World Happiness, 2025
- Safe drinking water
- 100%
- of population, 2024
- Homicide rate
- 1.5
- per 100k, 2022
- Road deaths
- 9.6
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for New Plymouth (-39.0667°, 174.0833°, elevation 64 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.