Climate and average weather in Wellington

In Wellington, the summers are mild, fairly dry, and mostly clear and the winters are cool, windy, and partly cloudy.

Best: early January to early April

Over the course of the year, the temperature in Wellington typically varies from 9°C to 18°C, and is rarely below 7°C or above 19°C. February is the hottest month of the year, while July is the coldest.

Based on the travel score, the best time of year to visit Wellington for warm-weather activities is from early January to early April.

Hottest
Feb
18°
Coldest
Jul
Wettest
Jun
95 mm
Driest
Jan
55 mm
Rain / yr
873 mm
118 wet days
Daylight
9.0–15.0 h
shortest–longest
Elevation
31 m
41.3°S
Clearest
Feb
49% cloud

Wellington is capital city of New Zealand; urban area of the cities of Wellington, Lower Hutt, Upper Hutt, and Porirua.

Air quality
Excellent
PM10 12.9 µg/m³ · 2012
Density
860/km²
people per km²
Founded
1839

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

Wellington 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 Wellington, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

Temperatures in Wellington stay fairly even through the year, without a distinct hot or cool season. The warmest month is February, with an average high of 18°C and low of 15°C; the coolest is July, with an average low of 9°C and high of 11°C.

Days typically run about 2°C warmer than nights year-round.

10°15°20°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan1715
Feb1815
Mar1714
Apr1513
May1412
Jun1210
Jul119
Aug119
Sep1210
Oct1311
Nov1412
Dec1614

Average hourly temperature in Wellington

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 18°C, and coldest before dawn in July, near C.

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

Wellington 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
Jan17° / 15°557.514.65.9
Feb18° / 15°566.113.76.4
Mar17° / 14°597.412.35.8
Apr15° / 13°73910.94.8
May14° / 12°7610.29.74.0
Jun12° / 10°9512.19.13.1
Jul11° / 8712.19.32.7
Aug11° / 8212.610.32.7
Sep12° / 10°7410.811.73.2
Oct13° / 11°8311.313.13.6
Nov14° / 12°699.114.34.3
Dec16° / 14°659.614.95.0

Chance of rain

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

Wellington gets about 873 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 5.7 months, from around May 7 to Oct 27, peaking in August at about 43% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Feb 7.

June is the wettest month by volume, with 95 mm over about 12 wet days; January is the driest, with 55 mm.

0%10%20%30%40%50%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetAug 12 · 43%Feb 7 · 21%
Rain on a day (%)Rain days
Jan258
Feb226
Mar257
Apr299
May3310
Jun4012
Jul4012
Aug4013
Sep3511
Oct3611
Nov309
Dec3010

Monthly rainfall

Over a full year, Wellington collects about 873 mm of rain across 118 wet days — roughly 73 mm in an average month.

It doesn’t fall evenly. June is the wettest month with 95 mm, while January is the driest at just 55 mm. The three wettest months alone bring about 30% of the year’s total.

0255075100125JanFebMarAprMayJunJulAugSepOctNovDec555659737695878274836965
Rainfall (mm)Rain days
Jan558
Feb566
Mar597
Apr739
May7610
Jun9512
Jul8712
Aug8213
Sep7411
Oct8311
Nov699
Dec6510

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

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

The clearer part of the year begins around December 31 and lasts for 3.7 months, ending around April 23. The clearest month is February, when the sky is clear, mostly clear, or partly cloudy 61% of the time on average.

The cloudier part of the year begins around November 18 and lasts for 1.4 months, ending around December 30. The cloudiest month is December, when it is overcast or mostly cloudy 49% 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 23 · 62%Dec 6 · 49%clearmostly clearpartly cloudymostly cloudyovercastclearercloudier
Clearer (%)Cloudier (%)
Jan5743
Feb6139
Mar6040
Apr5644
May5545
Jun5149
Jul5149
Aug5347
Sep5446
Oct5446
Nov5446
Dec5149

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 14, 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)
Jan14.66:108:50
Feb13.76:468:25
Mar12.37:207:41
Apr10.97:546:48
May9.78:266:08
Jun9.18:505:52
Jul9.38:486:05
Aug10.38:156:35
Sep11.77:237:07
Oct13.16:327:40
Nov14.35:558:17
Dec14.95:488:46

Sunny days

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

Wellington averages about 11 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 10 and 14 days.

The sunnier stretch runs 4.7 months, from around Dec 31 to May 22. The sunniest month is February, with roughly 13 sunny days (mixed).

The greyest month is July, down near 10 sunny days — about 22% fewer than the February peak.

05101520JanFebMarAprMayJunJulAugSepOctNovDecsunniergreyergloomymixedbrightFeb 2314 daysJul 1010 days
Sunny daysSky
Jan12Mixed
Feb12Mixed
Mar13Mixed
Apr12Mixed
May12Mixed
Jun10Mixed
Jul10Mixed
Aug11Mixed
Sep11Mixed
Oct11Mixed
Nov11Mixed
Dec11Mixed

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 Wellington, how humid it feels changes noticeably over the year.

The more humid part of the year lasts 3.5 months, from around December 19 to April 3. The muggiest month is February, when the air feels humid, muggy or worse about 17% of the time.

The most comfortable stretch runs from around April 4 to December 18, and May is the most comfortable month — the air is dry or comfortable 100% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecMay 8 · 100%Feb 11 · 82%humidcomfortabledryhumidcomfortable
Dry (%)Comfortable (%)Humid (%)
Jan464410
Feb384517
Mar53416
Apr75241
May9190
Jun9910
Jul10000
Aug10000
Sep10000
Oct9910
Nov89110
Dec65333

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 Wellington is typically breezy, near 26 km/h, and varies little with the seasons.

The windier part of the year lasts 4.6 months, from around Sep 1 to Jan 17. The windiest month is October, averaging about 28 km/h (breezy).

The calmer part of the year runs from around Jan 18 to Jun 3, with April the calmest month at about 25 km/h.

05101520253035JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmlight breezebreezywindyOct 9 · 29 km/hApr 20 · 24 km/h
Wind speed (km/h)Feels
Jan26breezy
Feb25breezy
Mar25breezy
Apr25breezy
May26breezy
Jun27breezy
Jul26breezy
Aug26breezy
Sep28breezy
Oct28breezy
Nov28breezy
Dec27breezy

Best time to visit Wellington

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around late March, Wellington 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 Wellington for general outdoor tourist activities is from late December to early April, with a peak score in the second week of February.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationFeb 12 · 6.4

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
Jan5.9good
Feb6.3good
Mar5.7good
Apr4.8fair
May4.0fair
Jun3.1poor
Jul2.7poor
Aug2.7poor
Sep3.2poor
Oct3.6fair
Nov4.3fair
Dec5.0fair

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 Wellington for hot-weather activities is from mid January to early March, with a peak score in the second week of February.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timetemperaturecloudsprecipitationFeb 10 · 1.9

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 Wellington, 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 18°C), the essentials are sun protection and a windbreaker. In the cold season around July (highs near 11°C), pack a warm layer, rain gear and a windbreaker.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In February, Wellington sees daytime highs around 18°C and nights near 15°C. Pack sun protection. Worth having: a windbreaker. About 6 days see rain.

Sea temperature near Wellington

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 13 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 Wellington 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 Wellington 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 Wellington

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

Wellington 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. Wellington banks about 1,081 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)
Jan183
Feb178
Mar168
Apr119
May80
Jun28
Jul3
Aug5
Sep27
Oct57
Nov89
Dec144

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.

Wellington receives about 4.3 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 1.6 and 7.5 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 7.1 kWh/m² (intense).

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

0123456789JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseJan 17.5 kWhJun 191.6 kWh
Solar energy (kWh/m²)Level
Jan7.3Intense
Feb6.1Intense
Mar4.7Bright
Apr3.1Moderate
May2.1Moderate
Jun1.6Dim
Jul1.8Dim
Aug2.7Moderate
Sep3.9Moderate
Oct5.3Bright
Nov6.6Intense
Dec6.9Intense

Where is Wellington?

Wellington sits at 41.3°S, 174.8°E, 31 m above sea level, in New Zealand. The nearest listed city is Karori, 3.0 km away.

What Wellington looks like

Topography around Wellington

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

Within 3 km, the terrain around Wellington has significant variations in elevation — a maximum elevation change of 349 m around an average of 85 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 528 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,512 m.

The land around Wellington is covered by trees (45%), artificial surfaces (29%) and water (22%) within 3 km, water (46%) and trees (31%) within 16 km, and water (60%) and trees (23%) within 80 km.

3 km
349 m
16 km
528 m
80 km
1,512 m
treesgrasslandcroplandartificial surfacesbare terrainwater
Nearby: Karori 3.0 km · Lower Hutt 14 km · Wainuiomata 15 km · Porirua 18 km · Upper Hutt 28 km · Paraparaumu 46 km · Picton 64 km · Blenheim 73 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 Wellington (-41.2866°, 174.7756°, elevation 31 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).