Climate and average weather in Wainuiomata

In Wainuiomata, the summers are mild, fairly dry, and partly cloudy and the winters are cool and partly cloudy.

Best: early January to early April

Over the course of the year, the temperature in Wainuiomata typically varies from 7°C to 19°C, and is rarely below 4°C or above 22°C. February is the hottest month of the year, while July is the coldest.

Based on the travel score, the best times of year to visit Wainuiomata for warm-weather activities are from early January to early April and early December to late December.

Hottest
Feb
19°
Coldest
Jul
Wettest
Jun
88 mm
Driest
Feb
56 mm
Rain / yr
870 mm
125 wet days
Daylight
9.0–15.0 h
shortest–longest
Elevation
93 m
41.3°S
Clearest
Feb
54% cloud

Wainuiomata is town in New Zealand.

Air quality
Excellent
PM10 10.1 µg/m³ · 2012

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Wainuiomata weather by month, at a glance

The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.

Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around early January to early April.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in Wainuiomata, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

The hot season lasts 3.4 months, from December 17 to March 29, with daily high temperatures above 17°C. The hottest month of the year in Wainuiomata is February, with an average high of 19°C and low of 14°C.

The cool season lasts 3.6 months, from June 1 to September 16, with daily high temperatures below 13°C. The coldest month of the year in Wainuiomata is July, with an average low of 7°C and high of 11°C.

Days typically run about 5°C warmer than nights year-round.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan1914
Feb1914
Mar1813
Apr1611
May149
Jun128
Jul117
Aug127
Sep138
Oct149
Nov1511
Dec1712

Average hourly temperature in Wainuiomata

A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on February afternoons, near 19°C, and coldest before dawn in July, near C.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM

Wainuiomata weather by month

Every month at a glance. Click a month for its detailed page.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan19° / 14°588.314.66.3
Feb19° / 14°567.313.76.6
Mar18° / 13°598.112.36.2
Apr16° / 11°709.710.95.1
May14° / 7010.49.74.1
Jun12° / 8811.99.13.1
Jul11° / 84129.32.7
Aug12° / 8113.310.32.8
Sep13° / 7611.611.73.4
Oct14° / 8811.713.13.9
Nov15° / 11°7310.514.34.7
Dec17° / 12°6910.614.95.5

Chance of rain

How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.

Wainuiomata gets about 870 mm of precipitation a year. On a typical day the chance of rain is often wet, but that rises and falls sharply with the seasons.

The wetter season lasts 5.6 months, from around May 21 to Nov 7, peaking in August at about 45% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jan 31.

June is the wettest month by volume, with 88 mm over about 12 wet days; February is the driest, with 56 mm.

0%10%20%30%40%50%60%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetAug 13 · 45%Jan 31 · 24%
Rain on a day (%)Rain days
Jan288
Feb267
Mar278
Apr3110
May3410
Jun3912
Jul4012
Aug4313
Sep3812
Oct3812
Nov3411
Dec3411

Monthly rainfall

Over a full year, Wainuiomata collects about 870 mm of rain across 125 wet days — roughly 72 mm in an average month.

It doesn’t fall evenly. June is the wettest month with 88 mm, while February is the driest at just 56 mm. The three wettest months alone bring about 30% of the year’s total.

0255075100125JanFebMarAprMayJunJulAugSepOctNovDec585659707088848176887369
Rainfall (mm)Rain days
Jan588
Feb567
Mar598
Apr7010
May7010
Jun8812
Jul8412
Aug8113
Sep7612
Oct8812
Nov7311
Dec6911

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

How often the daytime sky is clear, partly cloudy or overcast.

In Wainuiomata, the average share of the sky covered by clouds shows moderate seasonal variation over the course of the year.

The clearer part of the year begins around January 3 and lasts for 3.8 months, ending around April 28. The clearest month is February, when the sky is clear, mostly clear, or partly cloudy 55% of the time on average.

The cloudier part of the year begins around November 13 and lasts for 1.7 months, ending around January 2. The cloudiest month is December, when it is overcast or mostly cloudy 55% of the time.

0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanFebMarAprMayJunJulAugSepOctNovDecFeb 24 · 58%Dec 6 · 42%clearmostly clearpartly cloudymostly cloudyovercastclearercloudier
Clearer (%)Cloudier (%)
Jan5149
Feb5545
Mar5545
Apr5050
May5149
Jun4654
Jul4654
Aug4753
Sep4852
Oct4852
Nov4852
Dec4555

Daylight, sunrise and sunset

DaylightNight

Hours of daylight through the year, with sunrise and sunset times.

The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around December 15, brings about 15 hours of light; the shortest, around June 15, only 9 hours — a swing of roughly 6 hours.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan14.66:098:50
Feb13.76:458:24
Mar12.37:207:40
Apr10.97:546:47
May9.78:266:07
Jun9.18:495:52
Jul9.38:476:05
Aug10.38:146:34
Sep11.77:237:06
Oct13.16:317:39
Nov14.35:558:16
Dec14.95:478:45

Sunny days

How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.

Wainuiomata averages about 9 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 8 and 12 days.

The sunnier stretch runs 3.2 months, from around Dec 29 to Apr 3. The sunniest month is February, with roughly 12 sunny days (mixed).

The greyest month is December, down near 8 sunny days — about 26% fewer than the February peak.

051015JanFebMarAprMayJunJulAugSepOctNovDecsunniergreyergloomymixedFeb 2112 daysDec 138 days
Sunny daysSky
Jan10Mixed
Feb11Mixed
Mar11Mixed
Apr9Mixed
May10Mixed
Jun8Mixed
Jul9Mixed
Aug9Mixed
Sep9Mixed
Oct9Mixed
Nov9Mixed
Dec9Mixed

Humidity comfort

DryComfortableHumidMuggyOppressiveMiserable

Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.

Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.

In Wainuiomata, how humid it feels changes noticeably over the year.

The more humid part of the year lasts 3.7 months, from around December 11 to April 3. The muggiest month is February, when the air feels humid, muggy or worse about 15% of the time.

The most comfortable stretch runs from around April 4 to December 10, and April is the most comfortable month — the air is dry or comfortable 99% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecApr 29 · 100%Feb 7 · 82%humidcomfortabledryhumidcomfortable
Dry (%)Comfortable (%)Humid (%)
Jan513811
Feb444015
Mar62335
Apr81181
May9460
Jun9910
Jul10000
Aug10000
Sep10000
Oct9910
Nov90100
Dec67294

Wind

Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Across the year, average wind speed in Wainuiomata is typically light breeze, near 20 km/h, and varies little with the seasons.

The windier part of the year lasts 4.7 months, from around Sep 3 to Jan 24. The windiest month is October, averaging about 22 km/h (breezy).

The calmer part of the year runs from around Jan 25 to Sep 2, with April the calmest month at about 18 km/h.

051015202530JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmlight breezebreezywindyOct 10 · 22 km/hApr 20 · 18 km/h
Wind speed (km/h)Feels
Jan20breezy
Feb19light breeze
Mar19light breeze
Apr18light breeze
May19light breeze
Jun19light breeze
Jul19light breeze
Aug19light breeze
Sep21breezy
Oct22breezy
Nov22breezy
Dec21breezy

Best time to visit Wainuiomata

TravelBeach/poolTemperatureCloudsPrecipitation

To characterize how pleasant the weather is in Wainuiomata throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.

Around late March, Wainuiomata is still near the tail of its best-weather window — great conditions with the peak-season crowds already thinning.

Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.

The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, the best time of year to visit Wainuiomata for general outdoor tourist activities is from early December to early April, with a peak score in the first week of February.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationFeb 5 · 6.6

The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Travel score (0–10)Rating
Jan6.3good
Feb6.5good
Mar6.2good
Apr5.1fair
May4.1fair
Jun3.1poor
Jul2.7poor
Aug2.8poor
Sep3.4poor
Oct3.9fair
Nov4.7fair
Dec5.5good

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit Wainuiomata for hot-weather activities is from mid January to early March, with a peak score in the first week of February.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationFeb 5 · 3.1

The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

What to pack for Wainuiomata, by month

EssentialRecommendedOptional

Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.

For a warm-season trip around February (highs near 19°C), the essentials are sun protection. In the cold season around July (highs near 11°C), pack a warm layer and rain gear.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In February, Wainuiomata sees daytime highs around 19°C and nights near 14°C. Worth packing: sun protection. About 7 days see rain.

Sea temperature near Wainuiomata

Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.

The sea at the nearest coast (about 14 km away) is warmest in February at about 17°C and coldest in August near 12°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

10°12°14°16°18°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan16Cool
Feb17Cool
Mar16Cool
Apr15Cool
May14Bracing
Jun13Bracing
Jul12Bracing
Aug12Bracing
Sep12Bracing
Oct13Bracing
Nov14Bracing
Dec15Bracing

UV index (midday) in Wainuiomata by month

LowModerateHighVery highExtreme

Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.

Under clear skies, the midday UV index in Wainuiomata peaks around January 1 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 17 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeModerateLowModerateHighVery highExtremeJan 1UV 11Jun 17UV 1
UV index (midday)Level
Jan11Extreme
Feb10Extreme
Mar6High
Apr4Moderate
May2Low
Jun1Low
Jul2Low
Aug3Moderate
Sep4Moderate
Oct6High
Nov9Very high
Dec11Extreme

Average hourly UV index in Wainuiomata

LowModerateHighVery highExtreme

Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.

The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

UV falls off far faster than brightness as the sun drops, so even in January the burn window is concentrated in the middle of the day: about 9 hours a day reach index 3 (protection recommended), and 6.5 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM
UV ≥ 3 (h/day)UV ≥ 6 (h/day)
Jan96.5
Feb85.5
Mar6.52
Apr3.50
May00
Jun00
Jul00
Aug00
Sep40
Oct6.52
Nov85.5
Dec96.5
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Wainuiomata is frost-free year round — even the coldest nights rarely reach freezing, so there is no start or end to the growing season.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecfrost-free year round
Frost-free chance (%)Frost nights
Jan1000
Feb1000
Mar1000
Apr1000
May1000
Jun1000
Jul1000
Aug1000
Sep1000
Oct1000
Nov1000
Dec1000

Growing degree days

Degree days (base 10°C)Frost-free shaded

Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Wainuiomata banks about 1,003 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around February.

02505007501,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan194
Feb186
Mar166
Apr103
May52
Jun2
Jul0
Aug0
Sep12
Oct49
Nov88
Dec151

Solar energy

Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.

Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.

Wainuiomata receives about 4.3 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 1.6 and 7.4 kWh/m².

The brighter stretch of the year lasts 5.9 months, from around Sep 26 to Mar 23. The brightest month is January, averaging about 7.0 kWh/m² (intense).

The dimmest month is June, down near 1.6 kWh/m² — roughly 77% less than the January peak.

012345678JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseJan 17.4 kWhJun 181.6 kWh
Solar energy (kWh/m²)Level
Jan7.2Intense
Feb6.0Bright
Mar4.6Bright
Apr3.1Moderate
May2.1Moderate
Jun1.6Dim
Jul1.8Dim
Aug2.6Moderate
Sep3.8Moderate
Oct5.2Bright
Nov6.4Intense
Dec6.8Intense

Where is Wainuiomata?

Wainuiomata sits at 41.3°S, 174.9°E, 93 m above sea level, in New Zealand. The nearest listed city is Lower Hutt, 6.0 km away.

Topography around Wainuiomata

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Wainuiomata.

Within 3 km, the terrain around Wainuiomata has significant variations in elevation — a maximum elevation change of 386 m around an average of 178 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 923 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,512 m.

The land around Wainuiomata is covered by trees (81%) within 3 km, trees (64%) within 16 km, and water (59%) and trees (23%) within 80 km.

3 km
386 m
16 km
923 m
80 km
1,512 m
treesgrasslandcroplandartificial surfaceswater
Nearby: Lower Hutt 6.0 km · Wellington 15 km · Upper Hutt 17 km · Porirua 17 km · Karori 18 km · Paraparaumu 39 km · Masterton 68 km · Levin 76 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
no religion 49%Christian 37%objected to answering 7%Hindu 3%

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 Wainuiomata (-41.2667°, 174.95°, elevation 93 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).