Whanganui in Spring
In spring (September, October and November), Whanganui sees average daytime highs around 14°C and overnight lows near 11°C, with 294 mm of rain over about 40 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.
Over the season highs climb from about 13°C in early September to 16°C by late November. The sky is clear or mostly clear about 32% of the time across spring, and the air most often feels dry.
Spring is Whanganui's 3rd-best season to visit on our travel score. For the whole year in context, see Whanganui's year-round climate.
- Avg daytime high
- 14°C
- 3rd-warmest season
- Avg overnight low
- 11°C
- Rainfall
- 294 mm
- 40 wet days
- Avg wind
- 24 km/h
- Travel score
- 3.9
- 3rd-best season
- Months
- Sep · Oct · Nov
Temperature in Whanganui in Spring
Over the season highs climb from about 13°C in early September to 16°C by late November.
A typical spring day in Whanganui reaches about 14°C and drops to 11°C overnight. The warmest of the three months is November, the coolest September.
Whanganui weather by month
How the three spring months (September, October and November) 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° / 15° | 71 | 9.3 | 14.5 | 6.3 |
| Feb | 20° / 16° | 66 | 8.1 | 13.6 | 6.5 |
| Mar | 18° / 15° | 68 | 9.6 | 12.3 | 6.2 |
| Apr | 17° / 13° | 98 | 11 | 11 | 5.2 |
| May | 15° / 11° | 97 | 12.4 | 9.8 | 4.3 |
| Jun | 13° / 10° | 109 | 14.1 | 9.2 | 3.2 |
| Jul | 12° / 9° | 105 | 14.3 | 9.5 | 2.9 |
| Aug | 12° / 9° | 102 | 14.7 | 10.4 | 3.0 |
| Sep | 13° / 10° | 97 | 13.6 | 11.7 | 3.4 |
| Oct | 14° / 11° | 107 | 14.2 | 13.1 | 3.8 |
| Nov | 16° / 12° | 89 | 12.2 | 14.2 | 4.6 |
| Dec | 17° / 14° | 100 | 12.7 | 14.8 | 5.4 |
Cloud cover in Spring
The sky is clear or mostly clear about 32% of the time across spring.
Chance of precipitation in Spring
Whanganui gets around 294 mm of rain over 40 wet days across spring. The line is the day-by-day chance of measurable precipitation.
Humidity in Spring
Most of spring feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Spring
Winds average 24 km/h across spring.
Sunrise & sunset in Spring
Daylight runs from about 11 h 06 min in early September to 14 h 36 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Spring
Average shortwave solar energy reaching the ground each day across spring, about 5.0 kWh/m².
Is spring a good time to visit Whanganui?
Our two travel scores rate spring for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
spring is a weaker month for outdoor sightseeing in Whanganui.
What to pack for Whanganui in Spring
From spring's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In spring, Whanganui sees daytime highs around 14°C and nights near 11°C. Pack rain gear and sun protection. Worth having: a warm layer and a windbreaker. About 40 days see rain.
Sea temperature near Whanganui in Spring
The nearest coast averages about 14°C across spring — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 16 km away) is warmest in February at about 19°C and coldest in August near 13°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) | 18 | 19 | 18 | 17 | 16 | 14 | 13 | 13 | 13 | 14 | 15 | 16 |
| Comfort | Cool | Cool | Cool | Cool | Cool | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 18 | Cool |
| Feb | 19 | Cool |
| Mar | 18 | Cool |
| Apr | 17 | Cool |
| May | 16 | Cool |
| Jun | 14 | Bracing |
| Jul | 13 | Bracing |
| Aug | 13 | Bracing |
| Sep | 13 | Bracing |
| Oct | 14 | Bracing |
| Nov | 15 | Bracing |
| Dec | 16 | Cool |
UV index in Whanganui in Spring
Clear-sky midday UV across spring averages around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Whanganui 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 | 11 |
| 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 | 11 | Extreme |
Where is Whanganui?
Whanganui sits at 39.9°S, 175.1°E, 18 m above sea level, in New Zealand. The nearest listed city is Palmerston North, 67 km away.
Topography around Whanganui
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Whanganui.
Within 3 km, the terrain around Whanganui has only modest variations in elevation — a maximum elevation change of 103 m around an average of 28 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 300 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,746 m.
The land around Whanganui is covered by grassland (39%), artificial surfaces (28%) and trees (25%) within 3 km, grassland (42%), water (32%) and trees (22%) within 16 km, and grassland (44%), trees (29%) and water (25%) 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 Whanganui (-39.9333°, 175.05°, elevation 18 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.