Your August weather guide
CoolWeather in Auckland in August
August is a reasonable time for Auckland if you want cool-weather city travel, but not if you are leaving the UK for warmth. Expect daytime highs around 14°C, nights around 9°C and about 15 rainy days. Pack for winter rather than summer, and keep outdoor plans flexible. It suits travellers happy to walk in layers and work around showers; it is a poor fit for a swimming-led holiday.
Long-term climate averages for Auckland, not a forecast · 1991-2020
Auckland, month by month
Your snapshot
At a glance
The useful details for Auckland.
- Average daytime high
- 13.9°C
- 9 in 10 days stay below 16°C
- Average night-time low
- 9.2°C
- coldest 10% of nights: 7°C or lower
- Compared with London
- -7.5°C
- London averages 21.4°C in August
- Sea temperature
- 13.2°C
- year to year: 13°C to 14°C
- Sunshine per day (est.)
- 4.5h
- 42% of 10.6 h of daylight
- Rainy days (1 mm+)
- 15
- 105 mm over the month
- Humidity
- 82%
- Days over 25°C
- 0%
- none over 30°C
- Record high 1991-2020
- 18.3°C
- 2009-08-30
- Record low 1991-2020
- 3.3°C
- 1996-08-31
- Flight from London
- ≈ 23 h 42 min
- 18375 km, long-haul (estimate for a direct flight)
Records are observed extremes within 1991-2020, not typical holiday conditions. Warm-day percentages are shares of days, not day counts.
How August compares
August is the 11th warmest month of the year in Auckland. Against London's average high of 21.4°C in August, Auckland is 7.5°C cooler by day and 4.3°C cooler at night.
Daytime and night-time in August
The typical August day in Auckland peaks at 13.9°C, but that is an average: the warmest 10% of days reach 15.6°C or more. Days over 25°C are rare. Nights average 9.2°C; one night in ten drops to 6.5°C or lower, so pack a layer for evenings - it is genuinely cool after dark. Between 1991 and 2020 the hottest August day here reached 18.3°C (2009-08-30) and the coldest night 3.3°C (1996-08-31).
Rain in August
Wet (more than 8 rainy days): about 15 days with 1 mm or more, 105 mm in total. Year to year it varies a lot - the wettest August was 2010 with 199 mm, the driest 2005 with 36 mm. Humidity averages 82%.
Sea temperature in August
The sea averages 13.2°C - too cold for most (under 18°c). Depending on the year it ranges from 12.5°C to 13.7°C. For the warmest sea here, come in February (21.2°C).
Sunshine and daylight
Around 4.5 hours of sunshine a day (estimated from cloud cover), 10.6 hours of daylight: the sun rises about 07:04 and sets about 17:47 local time in mid-August. Average cloud cover is 57%.
Is August a good time to visit Auckland?
August is not the strongest month here: cool days and frequent rain. The best months for Auckland on our scoring are February, January, March.
Expect a noticeable step down from London's summer
Auckland's average daytime high is 13.9°C, compared with London's 21.4°C in August - a difference of 7.5°C. That makes a jumper and jacket more useful than a suitcase built around summer clothes. Walking should be manageable with suitable layers, but do not plan around warm afternoons: even the warmer days typically offer mild conditions rather than heat. Nights average 9.2°C, with the coldest 10% falling to 6.5°C or lower, so keep a warmer layer for evenings. August is among Auckland's coolest months, making it better suited to travellers who prefer cool days than those seeking a summer break.
Leave room to change outdoor plans
Rain is the main practical catch. About 15 days bring measurable rain, so a waterproof jacket and shoes that cope with wet pavements deserve space in your luggage. That does not mean every outing will be washed out, but a rigid schedule leaves little room to work around wet weather. There are about 4.5 hours of sunshine within 10.6 hours of daylight each day, so expect limited sunshine rather than consistently bright skies. Use dry spells for longer walks and keep indoor alternatives available. Plan outdoor time during daylight, and carry your waterproof even when the day starts promisingly.
A little perspective
Auckland through the year
August is highlighted. See how it compares with the rest of the year.
| Month | Day | Night | Sea | Sun/day | Rain mm | Rainy days | Days 25°C+ |
|---|---|---|---|---|---|---|---|
| Januarybest | 22.0°C | 16.5°C | 20.4°C | 6.0 | 68 | 9 | 5% |
| Februarybest | 22.7°C | 17.2°C | 21.2°C | 5.6 | 68 | 8 | 7% |
| Marchbest | 21.2°C | 15.9°C | 20.7°C | 5.6 | 73 | 9 | 1% |
| April | 18.9°C | 14.0°C | 19.1°C | 4.7 | 76 | 10 | 0% |
| May | 16.6°C | 12.2°C | 17.3°C | 4.3 | 95 | 11 | 0% |
| June | 14.5°C | 10.3°C | 15.2°C | 4.0 | 101 | 12 | 0% |
| July | 13.7°C | 9.1°C | 13.5°C | 4.2 | 115 | 14 | 0% |
| AugustSelected | 13.9°C | 9.2°C | 13.2°C | 4.5 | 105 | 15 | 0% |
| September | 15.1°C | 10.1°C | 13.9°C | 4.7 | 93 | 14 | 0% |
| October | 16.4°C | 11.4°C | 15.3°C | 5.1 | 80 | 12 | 0% |
| November | 18.0°C | 12.9°C | 17.0°C | 5.1 | 76 | 11 | 0% |
| December | 20.3°C | 15.1°C | 18.9°C | 5.2 | 93 | 11 | 0% |
Day = average daytime high, night = average night-time low, 1991-2020.Sun is hours per day; rainy days count 1 mm or more.
Day, night and sea
Monthly average temperatures, 1991-2020
- Day
- Night
- Sea
Best months here
On warmth, low rainfall and sunshine, start with these.
Keep exploring
Similar in August
Closest matches on daytime temperature, sea temperature and sunshine, in other countries.
A little more detail
Auckland in August FAQs
Plain answers, grounded in the averages.
Is Auckland hot in August?
Auckland is cool in August: the average daytime high is 13.9°C and nights average 9.2°C. Days over 25°C are rare in August.
Can you swim in the sea in Auckland in August?
The sea around Auckland averages 13.2°C in August, which is cold for swimming without a wetsuit. Between 1991 and 2020 it ranged from 13°C to 14°C depending on the year.
How much does it rain in Auckland in August?
Auckland sees about 15 rainy days (1 mm or more) and 105 mm of rain in a typical August. The wettest August between 1991 and 2020 was 2010 (199 mm) and the driest was 2005 (36 mm).
How sunny is Auckland in August?
Auckland gets around 4.5 hours of sunshine a day in August out of 10.6 hours of daylight (estimated from average cloud cover).
How does Auckland compare with the UK in August?
Auckland is on average 7.5°C cooler than London by day in August (13.9°C against 21.4°C).
What is the hottest August on record in Auckland?
Between 1991 and 2020 the hottest August day in Auckland reached 18.3°C on 2009-08-30, and the coldest night dropped to 3.3°C on 1996-08-31.
Is the sea warm enough for swimming in August?
The sea averages 13.2°C, which is cold rather than merely bracing. August is not a good choice if comfortable sea swimming is central to your holiday. Treat time by the water as a reason to bring layers, not just swimwear.
Is August worth the long flight from London?
The flight from London takes about 23 h 42 min, so this is a long-haul trip without a warm-weather reward in August. It makes more sense if visiting Auckland matters more to you than sunshine, heat or swimming.
When should I go instead for better weather?
February, January and March are the better-rated months for Auckland's weather. If your dates are flexible and weather is a deciding factor, favour those over August. August's cool temperatures, frequent rain and cold sea make it a compromise.
About these averages
ERA5-Land climate reanalysis via Open-Meteo (11 km grid) and NOAA Coral Reef Watch 5 km sea temperatures, 1991-2020
Averages computed from daily values at Auckland. Sea temperature from the nearest 5 km sea cell, 2.8 km from that point. Sunshine hours are estimated from average cloud cover.Records are the highest and lowest daily values in that 30-year period, not all-time records. These are climate averages, not a forecast for your trip. How we measure holiday weather
- Hot · 25°C+
- Warm · 20°C to below 25°C
- Mild · 15°C to below 20°C
- Cool · below 15°C