Climate averages 1991–2020
Viana weather
in December.
A hot, moderately wet month: the 5th warmest and the 7th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a hot month in Viana: daytime highs average 31.3°C and nights cool to about 23.1°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 41 mm of rain on roughly 10 days, which makes December a moderately wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 38 min on an average December day.
The nearest other city in this atlas is Mulenvos (6 km away). In December its highs average 31.1°C, about as warm as Viana, with 33 mm of rain.
Among the 47 cities listed in Angola, Viana ranks joint 4th of 47 for the warmest December highs and joint 13th of 47 for the driest December (rainfall, lowest first). The mean December high of those 47 cities is 27.5°C; Viana is 3.7°C warmer than that mean.
From December to January, average highs rise by 0.6°C to 31.9°C, and monthly rainfall rises from 41 mm to 48 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
Viana climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 31.9°C23.2°C | 23.2°C | 48 | 8.5 | 12.613 h |
| February | 32.4°C23.7°C | 23.7°C | 52 | 9.2 | 12.412 h |
| March | 32.0°C24.0°C | 24.0°C | 89 | 14.8 | 12.212 h |
| April | 30.9°C24.0°C | 24.0°C | 117 | 16.4 | 11.912 h |
| May | 31.8°C22.7°C | 22.7°C | 9.7 | 1.9 | 11.712 h |
| June | 30.3°C19.8°C | 19.8°C | 0.2 | 0.0 | 11.612 h |
| July | 29.0°C18.2°C | 18.2°C | 0.1 | 0.0 | 11.712 h |
| August | 28.9°C18.7°C | 18.7°C | 1.3 | 0.1 | 11.812 h |
| September | 29.9°C20.4°C | 20.4°C | 4.4 | 1.2 | 12.012 h |
| October | 30.4°C22.0°C | 22.0°C | 16 | 3.6 | 12.312 h |
| November | 30.9°C23.0°C | 23.0°C | 48 | 10.6 | 12.513 h |
| December, selected | 31.3°C23.1°C | 23.1°C | 41 | 9.7 | 12.613 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
- Mulenvos in DecemberAngola · 6 kmHigh 31.1°C · Low 23.5°C · 33 mm rain
- Vila Flor in DecemberAngola · 11 kmHigh 31.0°C · Low 23.2°C · 41 mm rain
- Zango in DecemberAngola · 12 kmHigh 31.3°C · Low 22.9°C · 80 mm rain
- Cacuaco in DecemberAngola · 14 kmHigh 31.4°C · Low 23.9°C · 33 mm rain
- Kikolo in DecemberAngola · 15 kmHigh 31.0°C · Low 23.0°C · 33 mm rain
- Luanda in DecemberAngola · 17 kmHigh 30.7°C · Low 23.5°C · 33 mm rain
- Panguíla in DecemberAngola · 25 kmHigh 30.7°C · Low 23.9°C · 72 mm rain
- Calumbo in DecemberAngola · 27 kmHigh 32.2°C · Low 23.5°C · 69 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 Viana) is explained once on the Viana year overview and on the Sources, method and limits page.
Vila Flor lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.