Invercargill Weather in August

Invercargill in August sees low daytime temperatures of 12°C (54°F) and nighttime lows of 4°C (39°F). Rainfall is fairly high this month at around 84 mm (3.3 in), so pack a rain jacket to stay dry.

Rainfall in Invercargill in August

Historically, August sees about 17 days of rain, with a monthly average of 84 mm (3.3 in). Expect plenty of grey, overcast days rather than intense storms. The rain rarely amounts to much on any given day.

Temperature in Invercargill in August

In August, Invercargill gets low temperatures, with highs of 12°C (54°F). Nights cool to around 4°C (39°F). Cold conditions persist throughout the day, so warm clothing is important from the moment you head outside. Nights fall to 4°C (39°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.

Sunshine in Invercargill in August

The area enjoys a moderate level of sunlight, with around 125 hours. It's a good balance between sunny and cloudy days.

Wind Speed in Invercargill in August

Wind speeds average 3 m/s (6 knots) during August. At this speed, light breezes keep leaves and small twigs in gentle motion while the wind also provides natural cooling. Since this is an average, some days are more tranquil while others have more persistent light winds that are more noticeable.

Average water temperature in August

With water temperatures around 10°C (50°F), swimming isn't really an option for most visitors. The cold sets in quickly and a wetsuit won't fully solve it.

If you prefer dry days with pleasant temperatures, January, February, March and December typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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For a detailed overview over the year and the best time to visit New Zealand, check out our Invercargill's climate page.

Invercargill Temperature in August

Min Temperature 4°C (39°F)  

Max Temperature 12°C (54°F)  

Water Temperature 10°C (50°F)  

Chance of Rain 58%  

Precipitation 84 mm (3.3 in)  

Rainy days 17 days  

Humidity 84%  

Windspeed 3 m/s (6 knots)  

Sunshine 125 hours  

Percentage Sunshine 40%  

Daily Historical Temperatures

48-year average (1976-2025)

Based on our historical records, temperatures in Invercargill typically stay consistent throughout August, with daily highs averaging around 12°C (54°F). Nights are cold, with lows typically ranging from 2°C (36°F) to 5°C (41°F).

Average temperatures in August

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Historical weather for Invercargill in August

Browse day-by-day weather records for Invercargill spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Historical weather Temperatures Precipitation

‹ 2026 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 1979 1978 1977 ›

‹ January February March April May June July August September October November December ›

Invercargill historical weather extremes in August

Our historical data for Invercargill spans 2000 to 2025, revealing these weather extremes.

• On August 31, 2024, temperatures climbed to 18°C (64°F), marking the warmest August day on record.
• The coldest August day was on August 15, 2011, with a maximum of 4°C (39°F).
• Invercargill registered its coldest August night on August 7, 2016, with temperatures dropping to -5°C (23°F).
• The heaviest August precipitation occurred on August 13, 2004, when 31 mm (1.2 in) of precipitation fell.

What to Wear in Invercargill in August

The weather can swing between comfortable and chilly in August, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Expect heavy rainfall, so bring good rain protection and waterproof bags. With water temperatures around 10°C (50°F), the water is quite cold for swimming. You can skip the swimwear unless you're particularly tough. Sunglasses could come in handy during the sunnier parts of your trip.

What To Do in Invercargill in August

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

5/10

Cycling

6/10

Walking

6/10

Camping

4/10

Outdoor sports

6/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit New Zealand, check out our Invercargill's climate page.

More climate data for Invercargill

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Invercargill climate overview or explore weather in New Zealand.