Wellington weather in January

In January, Wellington sees average daytime highs of 17°C and overnight lows near 15°C, with 55 mm of rain across 7.5 wet days and about 14.6 hours of daylight. It is the 2nd-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 17°C through the month. The sky is clear or mostly clear about 40% of the time in January, and the air most often feels dry.

Daylight stretches from about 14 h 54 min at the start of January to 14 h 12 min by month's end. Set against the rest of the year, January is Wellington's 3rd-clearest and 6th-windiest month. For the whole year in context, see Wellington's year-round climate.

Daytime high
17°
2nd warmest
Overnight low
15°
11th coldest
Rainfall
55 mm
7.5 wet days
Daylight
14 h 42 min
6:10 AM – 8:50 PM
Cloud cover
52%
3rd clearest
Wind
26 km/h
6th windiest
Solar energy
7.3 kWh/m²
Travel score
5.9
out of 10

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.

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 17°C through the month.

A typical January day in Wellington reaches about 17°C in the afternoon and slips back to 15°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 19°C. Set against its neighbours, January runs about 1°C warmer than December and on par with February.

10°13°15°18°20°151015202531
Avg high (°C)Avg low (°C)
11714
21714
31714
41714
51714
61714
71714
81715
91715
101715
111715
121715
131715
141715
151715
161715
171715
181715
191715
201715
211715
221715
231715
241715
251815
261815
271815
281815
291815
301815
311815

Wellington weather by month

How January compares with the rest of the year at a glance. January is the 2nd-warmest and 12th-wettest month here — the current month is highlighted below.

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

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 17% of January, with mostly cloudy or overcast conditions the remaining 43%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15644
25644
35644
45743
55644
65644
75743
85842
95842
105842
115743
125842
135842
145842
155842
165842
175842
185842
195743
205743
215743
225743
235743
245743
255743
265743
275743
285743
295743
305743
315842

Chance of precipitation in January

Any precipitation

Wellington gets around 55 mm of rain over 7.5 wet days in January, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 25% and peaks near 27% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
127
227
327
427
527
627
727
827
926
1026
1126
1226
1326
1426
1525
1625
1725
1825
1925
2024
2124
2224
2324
2424
2524
2623
2723
2823
2923
3023
3122

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

Most of January feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, January lands in the dry band about 46% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1554050
2544150
3544150
4534250
5534250
6524260
7514360
8514360
9514360
10504460
11504470
12494470
13484470
14484480
15474580
16464590
17464590
184545100
194545100
204445110
214345120
224245121
234245131
244145141
254045141
264045151
273945151
283944161
293944161
303944171
313944171

Wind in January

Winds average 26 km/h in January.

Across January, daily wind ranges from about 25 km/h on the calmest days to 27 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
127breezy
227breezy
327breezy
427breezy
527breezy
627breezy
727breezy
827breezy
927breezy
1027breezy
1127breezy
1227breezy
1327breezy
1427breezy
1527breezy
1627breezy
1727breezy
1826breezy
1926breezy
2026breezy
2126breezy
2226breezy
2326breezy
2426breezy
2526breezy
2626breezy
2725breezy
2825breezy
2925breezy
3025breezy
3125breezy

Sunrise & sunset in January

DaylightNight

Daylight runs from about 14 h 54 min at the start of January to 14 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 42 minutes over January. Sunrise moves from 5:56 AM to 6:28 AM, and sunset from 8:52 PM to 8:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.95:568:52
214.95:578:52
314.95:588:52
414.95:598:52
514.95:598:52
614.96:008:52
714.96:018:52
814.86:028:52
914.86:038:52
1014.86:048:52
1114.86:058:52
1214.86:068:52
1314.76:078:51
1414.76:088:51
1514.76:098:51
1614.76:108:50
1714.66:118:50
1814.66:128:49
1914.66:138:49
2014.66:158:49
2114.56:168:48
2214.56:178:47
2314.56:188:47
2414.56:198:46
2514.46:208:46
2614.46:218:45
2714.46:238:44
2814.36:248:43
2914.36:258:43
3014.36:268:42
3114.26:288:41

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 7.3 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 1.6 kWh/m² to a high of 7.3 kWh/m² in January across the year — January's 7.3 kWh/m² sits near the top of that range.

02468151015202531
Solar energy (kWh/m²)Level
17.6Intense
27.6Intense
37.6Intense
47.6Intense
57.6Intense
67.5Intense
77.5Intense
87.4Intense
97.3Intense
107.3Intense
117.3Intense
127.2Intense
137.2Intense
147.1Intense
157.1Intense
167.0Intense
177.0Intense
187.0Intense
197.0Intense
206.9Intense
216.9Intense
226.9Intense
236.8Intense
246.8Intense
256.8Intense
266.8Intense
276.8Intense
286.7Intense
296.7Intense
306.7Intense
316.7Intense
Planning a trip in January

Is January a good time to visit Wellington?

Our two travel scores rate January for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.9
Sightseeing
2nd-best month of the year
1.5
Beach & pool
2nd-best month of the year

January is a reasonable time to visit Wellington for sightseeing.

What to pack for Wellington in January

From January's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In January, Wellington sees daytime highs around 17°C and nights near 15°C. Pack sun protection. Worth having: a windbreaker. About 8 days see rain.

sun protectiona windbreaker

Sea temperature near Wellington in January

The nearest coast averages about 16°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

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 in Wellington in January

LowModerateHighVery highExtreme

Clear-sky midday UV in January peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

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
Location & terrain

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.

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
January weather 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).