Newcastle, KwaZulu-Natal, South Africa climate
Average temperatures, precipitation and all-time records for Newcastle, KwaZulu-Natal, South Africa, with every day graded against ~45 years of local climate history (1981–2026). Its warmest month is January, averaging a high of 29°C, and its coldest is July, with an average low of 4°C.
Newcastle is the third-largest city in the province of KwaZulu-Natal, South Africa and is the province's industrial centre. The city has four industrial areas. via Wikipedia
How today compares
Latest recorded day: 2026-07-21. Each reading placed on Newcastle, KwaZulu-Natal, South Africa's own ±7-day seasonal distribution.
Newcastle average temperatures by month
Typical daily high and low, and average precipitation, for each month in Newcastle, KwaZulu-Natal, South Africa, based on 1981–2026 records. The wettest month is January (5 mm on an average day).
| Month | Avg high | Avg low | Avg precip |
|---|---|---|---|
| January | 29°C | 15°C | 5 mm |
| February | 28°C | 15°C | 5 mm |
| March | 28°C | 14°C | 3 mm |
| April | 25°C | 11°C | 3 mm |
| May | 23°C | 8°C | 0 mm |
| June | 19°C | 5°C | 0 mm |
| July | 20°C | 4°C | 0 mm |
| August | 23°C | 6°C | 0 mm |
| September | 27°C | 10°C | 0 mm |
| October | 27°C | 11°C | 3 mm |
| November | 29°C | 13°C | 5 mm |
| December | 29°C | 14°C | 5 mm |
Each bar spans the 10th-percentile daily low to the 90th-percentile daily high (the range most days fall within), coloured cold → hot on a shared -23°C to 46°C scale, so the whole year's rhythm reads at a glance.
Thinking of visiting Newcastle?
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Record extremes
- Hottest day on record: 42°C on 2016-01-06
- Coldest day on record: -3°C on 1981-09-02
Percentiles compare each day to Newcastle, KwaZulu-Natal, South Africa's own history, so grades are relative to this location: a “Near Record” day here isn't the same temperature as elsewhere. How the grades work →