Wellington weather in August

In August, Wellington sees average daytime highs of 11°C and overnight lows near 9°C, with 82 mm of rain across 12.6 wet days and about 10.3 hours of daylight. It is the 11th-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 11°C through the month. The sky is clear or mostly clear about 36% of the time in August, and the air most often feels dry.

Daylight stretches from about 9 h 48 min at the start of August to 11 hours by month's end. Set against the rest of the year, August is Wellington's 9th-clearest and 9th-windiest month. For the whole year in context, see Wellington's year-round climate.

Daytime high
11°
11th warmest
Overnight low
2nd coldest
Rainfall
82 mm
12.6 wet days
Daylight
10 h 18 min
8:15 AM – 6:35 PM
Cloud cover
55%
9th clearest
Wind
25 km/h
9th windiest
Solar energy
2.69 kWh/m²
Travel score
2.7
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 August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 11°C through the month.

A typical August day in Wellington reaches about 11°C in the afternoon and slips back to 9°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 9°C and 13°C. Set against its neighbours, August runs on par with July and about 1°C cooler than September.

10°13°15°151015202531
Avg high (°C)Avg low (°C)
1119
2119
3119
4119
5119
6119
7119
8119
9119
10119
11119
12119
13119
14119
15119
16119
17119
18119
19119
20119
21119
22119
23119
24119
25119
26119
27119
28119
29119
30119
31129

Wellington weather by month

How August compares with the rest of the year at a glance. August is the 11th-warmest and 4th-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 August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 17% of August, with mostly cloudy or overcast conditions the remaining 47%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15446
25347
35347
45248
55248
65248
75149
85149
95050
105149
115149
125248
135248
145248
155347
165347
175347
185347
195446
205446
215446
225545
235545
245644
255545
265545
275545
285545
295446
305446
315347

Chance of precipitation in August

Any precipitation

Wellington gets around 82 mm of rain over 12.6 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 40% and peaks near 44% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
139
240
340
441
542
642
743
843
944
1044
1144
1244
1344
1444
1544
1643
1743
1842
1942
2041
2140
2239
2338
2438
2537
2636
2736
2835
2935
3035
3135

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in August

Winds average 25 km/h in August.

Across August, daily wind ranges from about 25 km/h on the calmest days to 26 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
125breezy
225breezy
325breezy
426breezy
526breezy
626breezy
726breezy
826breezy
926breezy
1026breezy
1126breezy
1226breezy
1326breezy
1426breezy
1526breezy
1626breezy
1726breezy
1826breezy
1926breezy
2026breezy
2126breezy
2226breezy
2326breezy
2426breezy
2526breezy
2626breezy
2726breezy
2826breezy
2926breezy
3026breezy
3126breezy

Sunrise & sunset in August

DaylightNight

Daylight runs from about 9 h 48 min at the start of August to 11 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 72 minutes over August. Sunrise moves from 8:34 AM to 7:51 AM, and sunset from 6:20 PM to 6:51 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.88:346:20
29.88:336:21
39.88:326:22
49.98:316:23
59.98:306:24
69.98:286:25
710.08:276:26
810.08:266:27
910.18:256:28
1010.18:236:29
1110.18:226:30
1210.28:216:31
1310.28:196:32
1410.28:186:33
1510.38:166:34
1610.38:156:35
1710.48:146:36
1810.48:126:37
1910.58:116:38
2010.58:096:39
2110.58:086:40
2210.68:066:41
2310.68:046:42
2410.78:036:43
2510.78:016:44
2610.88:006:45
2710.87:586:46
2810.97:566:47
2910.97:556:48
3010.97:536:49
3111.07:516:51

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 2.69 kWh/m².

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 — August's 2.69 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
12.2Moderate
22.2Moderate
32.2Moderate
42.3Moderate
52.3Moderate
62.3Moderate
72.4Moderate
82.4Moderate
92.4Moderate
102.5Moderate
112.5Moderate
122.5Moderate
132.6Moderate
142.6Moderate
152.6Moderate
162.7Moderate
172.7Moderate
182.8Moderate
192.8Moderate
202.9Moderate
212.9Moderate
222.9Moderate
233.0Moderate
243.0Moderate
253.0Moderate
263.1Moderate
273.1Moderate
283.1Moderate
293.2Moderate
303.2Moderate
313.3Moderate
Planning a trip in August

Is August a good time to visit Wellington?

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

2.7
Sightseeing
11th-best month of the year
0.0
Beach & pool
7th-best month of the year

August is a weaker month for outdoor sightseeing in Wellington.

What to pack for Wellington in August

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

In August, Wellington sees daytime highs around 11°C and nights near 9°C. Pack a warm layer. Worth having: rain gear and a windbreaker. About 13 days see rain.

a warm layerrain geara windbreaker

Sea temperature near Wellington in August

The nearest coast averages about 12°C in August — 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 August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 3. 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
August 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).