Piet Retief in Summer
In summer (December, January and February), Piet Retief sees average daytime highs around 26°C and overnight lows near 15°C, with 416 mm of rain over about 51 wet days across the season. It is the warmest season of the year and the wettest season of the year.
Across summer, daytime highs hold fairly steady around 26°C. The sky is clear or mostly clear about 27% of the time across summer, and the air most often feels humid.
Summer is Piet Retief's weakest season of the year to visit on our travel score. For the whole year in context, see Piet Retief's year-round climate.
- Avg daytime high
- 26°C
- warmest season of the year
- Avg overnight low
- 15°C
- Rainfall
- 416 mm
- 51 wet days
- Avg wind
- 8 km/h
- Travel score
- 5.6
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Piet Retief in Summer
Across summer, daytime highs hold fairly steady around 26°C.
A typical summer day in Piet Retief reaches about 26°C and drops to 15°C overnight. The warmest of the three months is January, the coolest December.
Piet Retief 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 | 26° / 16° | 144 | 18.2 | 13.5 | 5.5 |
| Feb | 26° / 16° | 116 | 13.9 | 13 | 5.9 |
| Mar | 25° / 14° | 104 | 13.5 | 12.2 | 6.6 |
| Apr | 23° / 12° | 48 | 7.7 | 11.4 | 7.5 |
| May | 21° / 8° | 18 | 3.3 | 10.7 | 8.2 |
| Jun | 20° / 6° | 11 | 2.2 | 10.3 | 8.1 |
| Jul | 20° / 5° | 12 | 2 | 10.5 | 8.1 |
| Aug | 22° / 8° | 21 | 3.6 | 11 | 8.3 |
| Sep | 24° / 10° | 38 | 7 | 11.8 | 7.8 |
| Oct | 24° / 12° | 96 | 13.4 | 12.6 | 6.5 |
| Nov | 25° / 14° | 131 | 16.9 | 13.3 | 5.6 |
| Dec | 26° / 15° | 155 | 19.4 | 13.7 | 5.3 |
Cloud cover in Summer
The sky is clear or mostly clear about 27% of the time across summer.
Chance of precipitation in Summer
Piet Retief gets around 416 mm of rain over 51 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 8 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 13 h 36 min in early December to 12 h 36 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 5.9 kWh/m².
Hazard calendar for Piet Retief
In summer, Piet Retief overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Piet Retief's rainy season runs October–March, when most of the year's rain falls.
Is summer a good time to visit Piet Retief?
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 Piet Retief for sightseeing.
What to pack for Piet Retief in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Piet Retief sees daytime highs around 26°C and nights near 15°C. Pack rain gear and sun protection. Worth having: light clothes. About 51 days see rain.
UV index in Piet Retief in Summer
Clear-sky midday UV across summer averages around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Piet Retief peaks around January 15 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 5 (moderate).
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) | 14 | 13 | 11 | 7 | 6 | 5 | 5 | 7 | 8 | 9 | 11 | 13 |
| Level | Extreme | Extreme | Extreme | Very high | High | Moderate | Moderate | High | Very high | Very high | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 13 | Extreme |
| Mar | 11 | Extreme |
| Apr | 7 | Very high |
| May | 6 | High |
| Jun | 5 | Moderate |
| Jul | 5 | Moderate |
| Aug | 7 | High |
| Sep | 8 | Very high |
| Oct | 9 | Very high |
| Nov | 11 | Extreme |
| Dec | 13 | Extreme |
Air quality in Piet Retief in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Piet Retief is worst in May — around 56 µg/m³ PM2.5 (unhealthy), about 3.0× the cleanest month (December, 19 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 20 | 19 | 26 | 38 | 56 | 38 | 36 | 30 | 33 | 28 | 40 | 19 |
| Level | Moderate | Moderate | Moderate | Poor | Unhealthy | Poor | Poor | Moderate | Moderate | Moderate | Poor | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 20 | Moderate |
| Feb | 19 | Moderate |
| Mar | 26 | Moderate |
| Apr | 38 | Poor |
| May | 56 | Unhealthy |
| Jun | 38 | Poor |
| Jul | 36 | Poor |
| Aug | 30 | Moderate |
| Sep | 33 | Moderate |
| Oct | 28 | Moderate |
| Nov | 40 | Poor |
| Dec | 19 | Moderate |
Where is Piet Retief?
Piet Retief sits at 27.0°S, 30.8°E, 1,251 m above sea level, in South Africa. The nearest listed city is Driefontein, 38 km away.
Topography around Piet Retief
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Piet Retief.
Within 3 km, the terrain around Piet Retief has only modest variations in elevation — a maximum elevation change of 195 m around an average of 1,272 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 452 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,004 m.
The land around Piet Retief is covered by grassland (47%) and trees (32%) within 3 km, grassland (43%) and trees (42%) within 16 km, and grassland (56%) and trees (27%) within 80 km.
South Africa travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / M / N
- 230 V · 50 Hz
- Prices
- ≈ 41% of US
- price level, 2025
- GDP per capita
- $6,598
- 2025
- Happiness
- 5.0 / 10
- World Happiness, 2025
- Safe drinking water
- 68%
- of population, 2024
- Homicide rate
- 43.7
- per 100k, 2022
- Road deaths
- 22.2
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Very high
- EF EPI 602
- 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 Piet Retief (-27.0071°, 30.8132°, elevation 1,251 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.