Heidelberg, South Africa Climate by Month
Heidelberg, Gauteng, South Africa
Warm summers and cool winters, with most rain from November to March.
Heidelberg has warm summers and cool winters, with most rain from November to March. Afternoon highs range from 66°F (19°C) in June to 81°F (27°C) in February, and July nights average 34°F (1°C). Of the 24 in (620 mm) of rain in a typical year, 77% falls from November to March. June to August are almost completely dry.
- Warmest month
- 81°F(27°C)
- Average high, February
- Coldest nights
- 34°F(1°C)
- Average low, July
- Rain per year
- 24 in(620 mm)
- Wettest: December
- Humidity
- 53%
- Sunniest: November
Best and worst months in Heidelberg
Best for weatherApril, August and September are the best time for weather in Heidelberg: highs near 74°F (24°C) and about 0.7 in (18 mm) of rain a month.
Least pleasantDecember and January are the least pleasant; December is the wettest, with 4.4 in (112 mm) of rain.
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in September.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Heidelberg weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 81°F(27°C) | 59°F(15°C) | 3.9 in(99 mm) | 64% | 6.5 |
| FebFebruary | 81°F(27°C) | 59°F(15°C) | 3.5 in(89 mm) | 64% | 6.2 |
| MarMarch | 78°F(26°C) | 55°F(13°C) | 3.3 in(84 mm) | 62% | 5.5 |
| AprAprilBest | 74°F(23°C) | 48°F(9°C) | 1.3 in(34 mm) | 60% | 4.8 |
| MayMay | 70°F(21°C) | 40°F(5°C) | 0.6 in(16 mm) | 54% | 4.3 |
| JunJune | 66°F(19°C) | 35°F(1°C) | 0.2 in(6 mm) | 49% | 3.8 |
| JulJuly | 66°F(19°C) | 34°F(1°C) | 0.2 in(6 mm) | 41% | 4.2 |
| AugAugustBest | 71°F(22°C) | 39°F(4°C) | 0.2 in(6 mm) | 40% | 5.0 |
| SepSeptemberBest | 78°F(25°C) | 47°F(8°C) | 0.6 in(15 mm) | 37% | 5.9 |
| OctOctober | 80°F(27°C) | 53°F(12°C) | 2.4 in(60 mm) | 45% | 6.5 |
| NovNovember | 80°F(26°C) | 56°F(13°C) | 3.7 in(93 mm) | 56% | 6.8 |
| DecDecember | 81°F(27°C) | 59°F(15°C) | 4.4 in(112 mm) | 61% | 6.7 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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