Monthly climate guide
Newcastle weather in August
August in Newcastle is typically warm, with average daytime highs around 24°C (75°F) and night-time lows near 7°C (44°F). The month usually brings about 14 mm of rain (very dry) and is mostly sunny. Daytime highs are 4°C warmer than July and 4°C cooler than September.
What stands out in August
- Rain is well below Newcastle's usual level (around 74% less).
- Just 260 km apart, but Newcastle runs about 3°C warmer than Durban this month.
- Seasonally, August counts as late winter in Newcastle — the seasons are reversed south of the equator.
- Expect a big gap between day and night — about 17°C.
Avg high
24°C
75°F
Avg low
7°C
44°F
Rainfall
14 mm
very dry
Humidity
47%
relative
Sky
24%
cloud · mostly sunny
Newcastle weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 30°C / 86°F | 15°C / 60°F | 104 mm | 65% | 63% |
| February | 30°C / 85°F | 15°C / 59°F | 84 mm | 66% | 61% |
| March | 29°C / 83°F | 14°C / 57°F | 80 mm | 65% | 56% |
| April | 25°C / 77°F | 11°C / 51°F | 40 mm | 64% | 47% |
| May | 23°C / 74°F | 8°C / 47°F | 15 mm | 56% | 29% |
| June | 20°C / 69°F | 5°C / 41°F | 6 mm | 51% | 19% |
| July | 20°C / 68°F | 5°C / 40°F | 15 mm | 51% | 20% |
| August | 24°C / 75°F | 7°C / 44°F | 14 mm | 47% | 24% |
| September | 28°C / 82°F | 10°C / 50°F | 35 mm | 47% | 33% |
| October | 29°C / 84°F | 11°C / 53°F | 63 mm | 54% | 48% |
| November | 30°C / 86°F | 13°C / 55°F | 84 mm | 58% | 60% |
| December | 30°C / 87°F | 15°C / 59°F | 112 mm | 63% | 68% |
What to pack for August
- T-shirts plus a light layer for the evening
- Comfortable trainers or sandals for long walks
- An extra layer — evenings are noticeably cooler than afternoons
- Sunglasses
Is August a good time to visit Newcastle?
Compare the months in the chart above to find your ideal window.
Best time to visit Newcastle →Other South Africa cities in August
Cite or embed this data
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Newcastle weather in August. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/south-africa/newcastle-south-africa/august
<a href="https://weathercompare.eu/weather/south-africa/newcastle-south-africa/august">Newcastle weather in August</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/south-africa/newcastle-south-africa" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Newcastle weather in August"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/south-africa/newcastle-south-africa/august">Newcastle weather in August</a> – WeatherCompare</p>
Newcastle in August: quick answers
Is August a good time to visit Newcastle?
August is a reasonable time for Newcastle: highs around 24°C and about 14 mm of rain, though not one of the three best months.
How warm is Newcastle in August?
Average highs are about 24°C (75°F) and average lows about 7°C (44°F), based on 10 years of daily data.
Does it rain a lot in Newcastle in August?
Newcastle typically gets around 14 mm of rain in August — very dry.
Figures are long-term averages for the area around Newcastle (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.