Dunedin weather in August

August in Dunedin: cold, a little rain, with clean air — a great time to visit.

Updated September 2026 · climate normals from ERA5 reanalysis

Dunedin🇳🇿 New Zealand · New Zealand's South Island · City71
  1. 86Jan
  2. 88Feb
  3. 85Mar
  4. 78Apr
  5. 71May
  6. 66Jun
  7. 64Jul
  8. 71Aug
  9. 75Sep
  10. 77Oct
  11. 81Nov
  12. 83Dec

#10 of 12 months in Dunedin · #912 of 1413 destinations to visit in August · comfort 71/100 (tier B)

Days
12°C
Nights
2°C
Wet days
10
Sun
7.4 h
Humidity
79%
Daylight
10 h
Dunedin, New Zealand
Photo: Donovan Kelly · Pexels

Traveller notes on Dunedin in August

Forum posters describe July and August as the two coldest months of the year across New Zealand, but rate Dunedin as staying reasonably fine in August, without the more extreme cold seen elsewhere in the South Island's winter. Posters are direct that beach time is off the table in August, but describe plenty of other things to do - old stone architecture, museums and galleries, the Chinese Garden, the Settlers Museum, and a tour through Cadbury World among the highlights. Posters flag snow on nearby roads, like the Middlemarch route, as a real possibility this time of year, alongside snow-covered hills that posters describe as genuinely stunning. Posters generally recommend Dunedin as a solid winter city destination, provided visitors set expectations around indoor and cultural attractions rather than beach or outdoor summer activities.
Tripadvisor community · August · 1 month ago · Read more on Tripadvisor ↗

Other months in Dunedin

February is New Zealand's most settled month and the quieter one — school holidays are over and accommodation is easier — and it is about as warm as Dunedin gets, an average high near 19°C. One forum visitor remembers the wind chill making it feel colder than Antarctica, and that is worth taking at face value: the city is exposed, locals say the weather changes day to day and hour to hour, and monthly averages run breezy here all year without singling February out. An average will not tell you what a southerly feels like on the day. A light waterproof and a fleece for the evening is the standing advice for a New Zealand February, and in Dunedin it is not optional.
Tripadvisor community · February · 1 month ago · Read more on Tripadvisor ↗

Add your own note from Dunedin's card on the map.

Dunedin climate normals — August

Daytime high12°C / 53°F🧥 cold
Nighttime low2°C / 35°F
Feels like (high)8°C / 46°F
Sea temperature10°C / 50°F🥶 cold sea
Rainfall34 mm / 1.3 in🌦 some rain
Rainy days10 days
Humidity79%💦 very humid
Dew point3°C / 38°F
Sunshine7.4 h/day
Daylight10.2 h
Wind18 km/h / 11 mph
Snowfall0.1 cm / 0 in
Air quality (US AQI)22🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Dunedin in August

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

Quietschool holidays in 2 of the markets that fill it, one of its worst months for weather(estimated)

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Peak crowdsBusyShoulder seasonQuiet

Best months for Dunedin's weather

Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).

Toughest weatherDunedin's weather peaks January–March, best around February.

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Best weatherFair weatherToughest weather

What's on in Dunedin in August

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Nature

    Royal albatross chick season

    20 Jan – 15 Sep · usuallyBirdlife season

    Taiaroa Head is the only mainland breeding colony of northern royal albatross anywhere. Eggs go down in November, chicks hatch from late January and sit out the whole southern winter on the headland before flying in September. Source ↗

What's on around the world in August →

Nearby, and something's on

Within 300 km of Dunedin — a day trip or a short hop — with something on this month. Never part of the comfort score.

Where is Dunedin?

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Dunedin in August — FAQ

Is August a good time to visit Dunedin?
August in Dunedin: cold, a little rain, with clean air — a great time to visit. It ranks #10 of 12 months for Dunedin on SeasonMap's comfort score (71/100).
What is the weather like in Dunedin in August?
In August, Dunedin averages a daily high of 11.7°C and a low of 1.6°C, with about 34 mm of rain over roughly 10.1 rainy days.
What is the air quality in Dunedin in August?
Dunedin has a mean US Air Quality Index of about 22 in August.

Within 300 km: Lake Tekapo's Milky Way season around 15 Apr – 15 Sep, and Aoraki Mount Cook's Milky Way season around 15 Apr – 15 Sep.