Climate averages 1991–2020
Heidelberg, South Africa weather
in March.
A warm, moderately wet month: the 7th warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
March is a warm month in Heidelberg, South Africa: daytime highs average 24.3°C and nights cool to about 13.6°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 84 mm of rain on roughly 11 days, which makes March a moderately wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 16 min on an average March day.
The nearest other city in this atlas is Nigel (14 km away). In March its highs average 24.0°C, about as warm as Heidelberg, South Africa, with 89 mm of rain.
Among the 95 cities listed in South Africa, Heidelberg, South Africa ranks 67th of 95 for the warmest March highs and 57th of 95 for the driest March (rainfall, lowest first). The mean March high of those 95 cities is 25.6°C; Heidelberg, South Africa is 1.3°C cooler than that mean.
From March to April, average highs fall by 2.3°C to 22.0°C, and monthly rainfall falls from 84 mm to 41 mm.
The annual picture
March in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Heidelberg, South Africa climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 25.7°C15.4°C | 15.4°C | 130 | 16.0 | 13.614 h |
| February | 25.5°C15.2°C | 15.2°C | 100 | 12.8 | 13.013 h |
| March, selected | 24.3°C13.6°C | 13.6°C | 84 | 11.4 | 12.312 h |
| April | 22.0°C10.6°C | 10.6°C | 41 | 6.8 | 11.511 h |
| May | 19.9°C6.9°C | 6.9°C | 15 | 2.7 | 10.811 h |
| June | 17.6°C3.8°C | 3.8°C | 7.4 | 1.5 | 10.511 h |
| July | 17.8°C3.0°C | 3.0°C | 3.3 | 0.7 | 10.611 h |
| August | 21.0°C5.9°C | 5.9°C | 11 | 2.1 | 11.211 h |
| September | 25.1°C9.8°C | 9.8°C | 22 | 3.6 | 11.912 h |
| October | 25.9°C12.3°C | 12.3°C | 78 | 10.5 | 12.713 h |
| November | 25.5°C13.5°C | 13.5°C | 101 | 13.8 | 13.413 h |
| December | 25.7°C15.0°C | 15.0°C | 140 | 16.9 | 13.814 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
March in nearby cities
- Nigel in MarchSouth Africa · 14 kmHigh 24.0°C · Low 13.3°C · 89 mm rain
- Tokoza in MarchSouth Africa · 28 kmHigh 24.1°C · Low 13.4°C · 83 mm rain
- Brakpan in MarchSouth Africa · 30 kmHigh 23.7°C · Low 13.1°C · 83 mm rain
- Alberton in MarchSouth Africa · 35 kmHigh 24.0°C · Low 13.3°C · 89 mm rain
- Benoni in MarchSouth Africa · 35 kmHigh 23.7°C · Low 13.1°C · 83 mm rain
- Germiston in MarchSouth Africa · 38 kmHigh 23.8°C · Low 13.2°C · 83 mm rain
- Etwatwa in MarchSouth Africa · 43 kmHigh 23.9°C · Low 13.4°C · 85 mm rain
- Johannesburg in MarchSouth Africa · 46 kmHigh 22.8°C · Low 12.3°C · 89 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Heidelberg) is explained once on the Heidelberg, South Africa year overview and on the Sources, method and limits page.