Greymouth Weather in August
August in Greymouth typically sees daytime highs of 13°C (55°F) and nighttime lows of 6°C (43°F). August falls within the rainy season, so heavy rainfall is to be expected.
Rainfall in Greymouth in August
Greymouth is in the rainy season in August, with rain on around 18 days and an average of 213 mm (8.4 in). With rain on many days and solid totals, showers are frequent and often moderately heavy. Waterproof gear is a sensible idea.
Temperature in Greymouth in August
If you're visiting Greymouth in August, expect highs of 13°C (55°F) and overnight lows around 6°C (43°F). Conditions are often most pleasant around the middle of the day. With lows around 6°C (43°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.
Sunshine in Greymouth in August
With about 140 hours of sunshine, the area enjoys a nice balance of sun and rainy moments, creating a pleasant environment.August in Greymouth has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit New Zealand, check out our Greymouth's climate page.
Greymouth Temperature in August
Min Temperature
6°C (43°F)
Max Temperature
13°C (55°F)
Chance of Rain
58%
Precipitation
213 mm (8.4 in)
Rainy days
18 days
Humidity
81% *
Sunshine
140 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Greymouth typically stay consistent throughout August, with daily highs averaging around 13°C (55°F). Nights are cold, with lows around 5°C (41°F).
Average temperatures in August
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in August
Historical weather for Greymouth in August
Browse day-by-day weather records for Greymouth spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Greymouth historical weather extremes in August
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Greymouth.
- On August 26, 1979, temperatures climbed to 19°C (66°F), marking the warmest August day on record.
- The lowest daytime temperature in August was 6°C (43°F), recorded on August 16, 1998.
- Nighttime temperatures dropped to -2°C (28°F) on August 9, 2016, marking the coldest August night on record.
Best Places in New Zealand in August
Find out more about the weather in New Zealand and which places have the best travel conditions in this month. See all of New Zealand in August →
perfect weather
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unpleasant
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What to Wear in Greymouth 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. It's going to pour! Pack a good poncho and prepare for very wet conditions. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Greymouth in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit New Zealand, check out our Greymouth's climate page.
Temperature Rainfall Sunshine Humidity
See the full Greymouth climate overview or explore weather in New Zealand.
