Climate averages 1991–2020
Manzini weather
in December.
A warm, wet month: the 3rd warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a warm month in Manzini: daytime highs average 26.9°C and nights cool to about 17.7°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 124 mm of rain on roughly 15 days, which makes December a wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 46 min on an average December day.
The nearest other city in this atlas is Mbabane (32 km away). In December its highs average 24.5°C, 2.4°C cooler than Manzini, with 208 mm of rain.
Among the 2 cities listed in Eswatini, Manzini ranks 1st of 2 for the warmest December highs and 1st of 2 for the driest December (rainfall, lowest first). The mean December high of those 2 cities is 25.7°C; Manzini is 1.2°C warmer than that mean.
From December to January, average highs rise by 0.1°C to 27.0°C, and monthly rainfall rises from 124 mm to 131 mm.
The annual picture
December 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
Manzini climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.0°C18.5°C | 18.5°C | 131 | 15.0 | 13.614 h |
| February | 27.1°C18.6°C | 18.6°C | 107 | 12.4 | 13.013 h |
| March | 26.5°C17.5°C | 17.5°C | 93 | 10.9 | 12.312 h |
| April | 24.6°C14.7°C | 14.7°C | 49 | 6.8 | 11.511 h |
| May | 23.3°C11.3°C | 11.3°C | 24 | 3.5 | 10.811 h |
| June | 21.7°C8.5°C | 8.5°C | 11 | 2.2 | 10.511 h |
| July | 21.4°C8.1°C | 8.1°C | 14 | 2.1 | 10.611 h |
| August | 23.2°C9.8°C | 9.8°C | 22 | 3.8 | 11.211 h |
| September | 25.2°C12.5°C | 12.5°C | 36 | 6.0 | 11.912 h |
| October | 25.2°C14.5°C | 14.5°C | 72 | 10.6 | 12.713 h |
| November | 26.0°C16.2°C | 16.2°C | 120 | 13.5 | 13.413 h |
| December, selected | 26.9°C17.7°C | 17.7°C | 124 | 14.7 | 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
December in nearby cities
- Mbabane in DecemberEswatini · 32 kmHigh 24.5°C · Low 15.5°C · 208 mm rain
- Piet Retief in DecemberSouth Africa · 80 kmHigh 24.9°C · Low 14.8°C · 155 mm rain
- Mbombela in DecemberSouth Africa · 121 kmHigh 27.7°C · Low 18.2°C · 151 mm rain
- Matola in DecemberMozambique · 123 kmHigh 28.7°C · Low 21.8°C · 103 mm rain
- Ressano Garcia in DecemberMozambique · 133 kmHigh 31.0°C · Low 21.4°C · 101 mm rain
- Maputo in DecemberMozambique · 134 kmHigh 27.9°C · Low 21.9°C · 103 mm rain
- Ermelo in DecemberSouth Africa · 139 kmHigh 23.3°C · Low 13.4°C · 163 mm rain
- Vryheid in DecemberSouth Africa · 153 kmHigh 25.5°C · Low 15.0°C · 158 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 Manzini) is explained once on the Manzini year overview and on the Sources, method and limits page.