Malmesbury in Winter
In winter (June, July and August), Malmesbury sees average daytime highs around 18°C and overnight lows near 7°C, with 282 mm of rain over about 28 wet days across the season. It is the coldest season of the year and the wettest season of the year.
Across winter, daytime highs hold fairly steady around 18°C. The sky is clear or mostly clear about 47% of the time across winter, and the air most often feels dry.
Winter is Malmesbury's weakest season of the year to visit on our travel score. For the whole year in context, see Malmesbury's year-round climate.
- Avg daytime high
- 18°C
- coldest season of the year
- Avg overnight low
- 7°C
- Rainfall
- 282 mm
- 28 wet days
- Avg wind
- 10 km/h
- Travel score
- 6.2
- weakest season of the year
- Months
- Jun · Jul · Aug
Temperature in Malmesbury in Winter
Across winter, daytime highs hold fairly steady around 18°C.
A typical winter day in Malmesbury reaches about 18°C and drops to 7°C overnight. The warmest of the three months is June, the coolest July.
Malmesbury weather by month
How the three winter months (June, July and August) 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 | 30° / 17° | 14 | 2.6 | 14 | 6.2 |
| Feb | 31° / 18° | 12 | 2.3 | 13.2 | 6.1 |
| Mar | 29° / 16° | 15 | 2.7 | 12.3 | 7.1 |
| Apr | 25° / 13° | 41 | 4.8 | 11.2 | 8.0 |
| May | 22° / 10° | 66 | 7.3 | 10.3 | 7.2 |
| Jun | 18° / 7° | 107 | 9.9 | 9.8 | 6.2 |
| Jul | 18° / 6° | 93 | 8.9 | 10 | 6.2 |
| Aug | 18° / 7° | 82 | 9.4 | 10.8 | 6.3 |
| Sep | 20° / 9° | 52 | 7.6 | 11.8 | 6.9 |
| Oct | 24° / 11° | 32 | 4.9 | 12.8 | 8.0 |
| Nov | 26° / 14° | 29 | 4.7 | 13.7 | 7.9 |
| Dec | 29° / 16° | 16 | 3.3 | 14.2 | 7.0 |
Cloud cover in Winter
The sky is clear or mostly clear about 47% of the time across winter.
Chance of precipitation in Winter
Malmesbury gets around 282 mm of rain over 28 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 10 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 10 hours in early June to 11 h 12 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 3.0 kWh/m².
Hazard calendar for Malmesbury
In winter, Malmesbury overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Malmesbury's rainy season runs May–September, when most of the year's rain falls.
Is winter a good time to visit Malmesbury?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter is a reasonable time to visit Malmesbury for sightseeing.
What to pack for Malmesbury in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Malmesbury sees daytime highs around 18°C and nights near 7°C. Worth packing: a warm layer and rain gear. About 28 days see rain.
Sea temperature near Malmesbury in Winter
The nearest coast averages about 14°C across winter — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 37 km away) is warmest in February at about 17°C and coldest in July near 14°C.
The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 17 | 17 | 16 | 15 | 15 | 15 | 14 | 14 | 15 | 15 | 16 | 16 |
| Comfort | Cool | Cool | Cool | Cool | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 17 | Cool |
| Feb | 17 | Cool |
| Mar | 16 | Cool |
| Apr | 15 | Cool |
| May | 15 | Bracing |
| Jun | 15 | Bracing |
| Jul | 14 | Bracing |
| Aug | 14 | Bracing |
| Sep | 15 | Bracing |
| Oct | 15 | Bracing |
| Nov | 16 | Cool |
| Dec | 16 | Cool |
UV index in Malmesbury in Winter
Clear-sky midday UV across winter averages around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Malmesbury peaks around January 13 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 3 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 13 | 10 | 9 | 6 | 4 | 3 | 3 | 4 | 5 | 10 | 11 | 12 |
| Level | Extreme | Very high | Very high | High | Moderate | Moderate | Moderate | Moderate | High | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 13 | Extreme |
| Feb | 10 | Very high |
| Mar | 9 | Very high |
| Apr | 6 | High |
| May | 4 | Moderate |
| Jun | 3 | Moderate |
| Jul | 3 | Moderate |
| Aug | 4 | Moderate |
| Sep | 5 | High |
| Oct | 10 | Extreme |
| Nov | 11 | Extreme |
| Dec | 12 | Extreme |
Air quality in Malmesbury in Winter
Average fine-particle pollution (PM2.5) through the year — so you can see where winter falls, not just the annual average.
Air quality in Malmesbury is worst in May — around 52 µg/m³ PM2.5 (poor), about 3.4× the cleanest month (December, 15 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 | 28 | 41 | 52 | 50 | 47 | 41 | 33 | 29 | 18 | 15 |
| Level | Moderate | Moderate | Moderate | Poor | Poor | Poor | Poor | Poor | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 20 | Moderate |
| Feb | 19 | Moderate |
| Mar | 28 | Moderate |
| Apr | 41 | Poor |
| May | 52 | Poor |
| Jun | 50 | Poor |
| Jul | 47 | Poor |
| Aug | 41 | Poor |
| Sep | 33 | Moderate |
| Oct | 29 | Moderate |
| Nov | 18 | Moderate |
| Dec | 15 | Moderate |
Where is Malmesbury?
Malmesbury sits at 33.5°S, 18.7°E, 136 m above sea level, in South Africa. The nearest listed city is Atlantis, 25 km away.
Topography around Malmesbury
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Malmesbury.
Within 3 km, the terrain around Malmesbury has only modest variations in elevation — a maximum elevation change of 188 m around an average of 166 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 892 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,073 m.
The land around Malmesbury is covered by cropland (39%), grassland (26%) and artificial surfaces (23%) within 3 km, cropland (67%) within 16 km, and cropland (30%) and grassland (25%) 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 Malmesbury (-33.4608°, 18.7271°, elevation 136 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.