Weather in Te Anau in August

The month to avoid. August is the month most people should skip in Te Anau. You should expect rain on 22 days of the month, which is more days wet than dry.

August ranks 10 of 12 — near the bottom of Te Anau's year. January is the month that works, and the swing between the two is 32 points, which is a different holiday rather than a slightly better one.

Rain on 22 of the month's 31 days, 4 of them heavy. At that frequency a wet-weather backup is not a contingency, it is the itinerary — book the indoor things first and treat the clear days as the bonus. Layers, and a genuinely waterproof outer — at 9.2 °C the difference between a good day and a miserable one is entirely down to what you are wearing.

What the averages hide

Averages flatten a month, and this one hides a few things: the day barely swings — 5.3 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest August day reached 14.2 °C and the coldest night fell to -2.3 °C, and the wettest single day dropped 42 mm — roughly 28% of the month's rain in one day.

August is statistically steady but not small: the year-to-year variation is modest in relative terms, yet the wettest August on record still delivered 277 mm against 59 mm in the driest. In a month this wet, even a tame spread is a lot of rain in absolute terms — the 150 mm average is a reasonable planning figure, not a promise.

Wind is light at 8.4 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 93%, which at 9.2 °C means damp rather than muggy — the kind of cold that gets into a coat and stays there.

How August sits in the year

Temperatures hold steady either side: 7.8 °C in July, 9.2 here, 11 in September. Nothing about the timing within the month matters much.

Daylight in August

10.2 hours of daylight, gaining 1.4 hours across the month. That is between Te Anau's extremes of 15.6 and 8.7 hours, so days are long enough not to constrain the plan.

An inland climate

Despite being inland, the year stays fairly even: 14.5 °C between the year's warmest afternoons and coldest nights.

How busy it gets

Off season. The genuine off season: cheapest by a distance, with the caveat that some tours and restaurants close entirely.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

August in Te Anau versus nearby

If Te Anau is one option among several, the nearby comparison is worth making. Queenstown is close enough to be a coin toss — within a degree on temperature, 3 days less rain. Invercargill is close enough to be a coin toss — within a degree on temperature, 4 days less rain.

So: August is a compromise. January is 28 points better and is what Te Anau is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.

Every month in Te Anau

See all twelve months in Te Anau, or where else to go in August.