Grootfontein in Summer
In summer (December, January and February), Grootfontein sees average daytime highs around 29°C and overnight lows near 19°C, with 430 mm of rain over about 48 wet days across the season. It is the 2nd-warmest season and the wettest season of the year.
Over the season highs ease from about 31°C in early December to 28°C by late February. The sky is clear or mostly clear about 25% of the time across summer, and the air most often feels humid.
Summer is Grootfontein's weakest season of the year to visit on our travel score. For the whole year in context, see Grootfontein's year-round climate.
- Avg daytime high
- 29°C
- 2nd-warmest season
- Avg overnight low
- 19°C
- Rainfall
- 430 mm
- 48 wet days
- Avg wind
- 9 km/h
- Travel score
- 4.5
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Grootfontein in Summer
Over the season highs ease from about 31°C in early December to 28°C by late February.
A typical summer day in Grootfontein reaches about 29°C and drops to 19°C overnight. The warmest of the three months is December, the coolest February.
How summer really feels in Grootfontein
Once humidity and wind are folded in, summer brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
summer sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Grootfontein weather by month
How the three summer months (December, January and February) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 29° / 19° | 165 | 16.9 | 13 | 4.5 |
| Feb | 28° / 18° | 147 | 15.9 | 12.7 | 4.8 |
| Mar | 28° / 18° | 112 | 14.7 | 12.1 | 5.6 |
| Apr | 27° / 15° | 33 | 5.8 | 11.6 | 7.6 |
| May | 25° / 12° | 1 | 0.5 | 11.1 | 9.2 |
| Jun | 23° / 8° | 0 | 0 | 10.8 | 9.6 |
| Jul | 23° / 8° | 0 | 0 | 10.9 | 9.5 |
| Aug | 27° / 11° | 0 | 0.1 | 11.3 | 8.9 |
| Sep | 30° / 15° | 5 | 0.9 | 11.9 | 6.4 |
| Oct | 32° / 18° | 23 | 4.7 | 12.5 | 4.6 |
| Nov | 31° / 19° | 71 | 12.1 | 12.9 | 4.2 |
| Dec | 30° / 19° | 117 | 15.7 | 13.2 | 4.2 |
Cloud cover in Summer
The sky is clear or mostly clear about 25% of the time across summer.
Chance of precipitation in Summer
Grootfontein gets around 430 mm of rain over 48 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 9 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 13 h 06 min in early December to 12 h 24 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 6.5 kWh/m².
Hazard calendar for Grootfontein
In summer, Grootfontein overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Grootfontein's rainy season runs December–March, when most of the year's rain falls.
Is summer a good time to visit Grootfontein?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a reasonable time to visit Grootfontein for sightseeing.
What to pack for Grootfontein in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Grootfontein sees daytime highs around 29°C and nights near 19°C. Pack light clothes, rain gear and sun protection. About 48 days see rain.
UV index in Grootfontein in Summer
Clear-sky midday UV across summer averages around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Grootfontein peaks around January 15 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 7 (very high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 15 | 14 | 14 | 10 | 9 | 7 | 7 | 9 | 9 | 12 | 13 | 14 |
| Level | Extreme | Extreme | Extreme | Extreme | Very high | Very high | Very high | Very high | Very high | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 14 | Extreme |
| Mar | 14 | Extreme |
| Apr | 10 | Extreme |
| May | 9 | Very high |
| Jun | 7 | Very high |
| Jul | 7 | Very high |
| Aug | 9 | Very high |
| Sep | 9 | Very high |
| Oct | 12 | Extreme |
| Nov | 13 | Extreme |
| Dec | 14 | Extreme |
Where is Grootfontein?
Grootfontein sits at 19.6°S, 18.1°E, 1,432 m above sea level, in Namibia. The nearest listed city is Tsumeb, 54 km away.
Topography around Grootfontein
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Grootfontein.
Within 3 km, the terrain around Grootfontein has only modest variations in elevation — a maximum elevation change of 86 m around an average of 1,447 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 376 m; within 80 km, large variations in elevation — a maximum elevation change of 956 m.
The land around Grootfontein is covered by shrubs (64%) within 3 km, shrubs (82%) within 16 km, and shrubs (93%) within 80 km.
Namibia travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type D / M
- 220 V · 50 Hz
- Prices
- ≈ 41% of US
- price level, 2025
- GDP per capita
- $4,876
- 2025
- Happiness
- 4.8 / 10
- World Happiness, 2025
- Homicide rate
- 11.2
- per 100k, 2021
- Road deaths
- 34.8
- per 100k/yr, 2019
- Income group
- Lower middle
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Grootfontein (-19.5733°, 18.1003°, elevation 1,432 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.