Wainuiomata weather in August

In August, Wainuiomata sees average daytime highs of 12°C and overnight lows near 7°C, with 81 mm of rain across 13.3 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 12°C through the month. The sky is clear or mostly clear about 30% 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 Wainuiomata's 8th-clearest and 8th-windiest month. For the whole year in context, see Wainuiomata's year-round climate.

Daytime high
12°
11th warmest
Overnight low
2nd coldest
Rainfall
81 mm
13.3 wet days
Daylight
10 h 18 min
8:14 AM – 6:34 PM
Cloud cover
59%
8th clearest
Wind
19 km/h
8th windiest
Solar energy
2.62 kWh/m²
Travel score
2.8
out of 10

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.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 12°C through the month.

A typical August day in Wainuiomata reaches about 12°C in the afternoon and slips back to 7°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 9°C and 14°C. Set against its neighbours, August runs on par with July and about 1°C cooler than September.

10°15°151015202531
Avg high (°C)Avg low (°C)
1117
2127
3127
4127
5127
6127
7117
8117
9117
10117
11117
12117
13117
14117
15127
16127
17127
18127
19127
20127
21127
22127
23127
24127
25127
26127
27127
28127
29127
30127
31127

Wainuiomata 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
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

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% 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 53%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15050
24852
34852
44852
54753
64654
74555
84654
94654
104654
114555
124555
134654
144555
154654
164654
174753
184654
194753
204753
214852
224852
234852
244951
254951
264852
274852
284753
294753
304753
314753

Chance of precipitation in August

Any precipitation

Wainuiomata gets around 81 mm of rain over 13.3 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 43% and peaks near 46% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
140
241
341
442
543
644
744
845
946
1046
1146
1246
1346
1446
1546
1646
1746
1845
1945
2044
2143
2242
2341
2440
2540
2639
2739
2838
2938
3038
3138

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 19 km/h in August.

Across August, daily wind ranges from about 19 km/h on the calmest days to 20 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
119light breeze
219light breeze
319light breeze
419light breeze
519light breeze
619light breeze
719light breeze
819light breeze
919light breeze
1019light breeze
1119light breeze
1219light breeze
1319light breeze
1419light breeze
1519light breeze
1619light breeze
1719light breeze
1819light breeze
1919light breeze
2019light breeze
2119light breeze
2219light breeze
2319light breeze
2419light breeze
2519light breeze
2619light breeze
2719light breeze
2819light breeze
2919light breeze
3019light breeze
3120light breeze

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 8:33 AM to 7:51 AM, and sunset from 6:19 PM to 6:50 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.88:336:19
29.88:326:20
39.88:316:21
49.98:306:22
59.98:296:23
69.98:286:24
710.08:266:25
810.08:256:26
910.18:246:27
1010.18:236:28
1110.18:216:29
1210.28:206:30
1310.28:196:31
1410.38:176:32
1510.38:166:33
1610.38:146:34
1710.48:136:35
1810.48:116:36
1910.58:106:37
2010.58:086:38
2110.58:076:39
2210.68:056:41
2310.68:046:42
2410.78:026:43
2510.78:016:44
2610.87:596:45
2710.87:576:46
2810.97:566:47
2910.97:546:48
3010.97:526:49
3111.07:516:50

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 2.62 kWh/m².

For context, solar energy here swings from a low near 1.57 kWh/m² to a high of 7.16 kWh/m² in January across the year — August's 2.62 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
12.1Moderate
22.2Moderate
32.2Moderate
42.2Moderate
52.2Moderate
62.3Moderate
72.3Moderate
82.3Moderate
92.4Moderate
102.4Moderate
112.4Moderate
122.5Moderate
132.5Moderate
142.5Moderate
152.6Moderate
162.6Moderate
172.6Moderate
182.7Moderate
192.7Moderate
202.8Moderate
212.8Moderate
222.9Moderate
232.9Moderate
242.9Moderate
253.0Moderate
263.0Moderate
273.0Moderate
283.1Moderate
293.1Moderate
303.1Moderate
313.2Moderate
Planning a trip in August

Is August a good time to visit Wainuiomata?

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

2.8
Sightseeing
11th-best month of the year
0.0
Beach & pool
9th-best month of the year

August is a weaker month for outdoor sightseeing in Wainuiomata.

What to pack for Wainuiomata in August

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

In August, Wainuiomata sees daytime highs around 12°C and nights near 7°C. Pack a warm layer. Worth having: rain gear. About 13 days see rain.

a warm layerrain gear

Sea temperature near Wainuiomata 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 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 in Wainuiomata 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 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
Location & terrain

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
August weather 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).