Robertson weather in August

In August, Robertson sees average daytime highs of 18°C and overnight lows near 6°C, with 34 mm of precipitation across 6.5 wet days and about 10.7 hours of daylight. It is the 10th-warmest and 4th-wettest month of the year here.

Highs climb over the month, from about 17°C in the first days to 18°C by the end. The sky is clear or mostly clear about 49% of the time in August, and the air most often feels dry.

Daylight stretches from about 10 h 18 min at the start of August to 11 h 12 min by month's end. Set against the rest of the year, August is Robertson's 9th-clearest and 7th-windiest month. For the whole year in context, see Robertson's year-round climate.

Daytime high: 18°; 10th warmest
Overnight low: 6°; 3rd coldest
Precipitation: 34 mm; 6.5 wet days
Daylight: 10 h 42 min; 7:23 AM – 6:07 PM
Cloud cover: 42%; 9th clearest
Wind: 8 km/h; 7th windiest
Solar energy: 3.69 kWh/m²
Travel score: 6.5; out of 10

Robertson is town in the Western Cape, South Africa.

Density: 1,461/km²; people per km²
Founded: 1853

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

← July Robertson year-round climate September →Best places to visit in August

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 17°C in the first days to 18°C by the end.

A typical August day in Robertson reaches about 18°C in the afternoon and slips back to 6°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 23°C. Set against its neighbours, August runs about 1°C warmer than July and about 3°C cooler than September.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Avg high (°C)	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	18	18	18	18	18	18	18	18	18	18	18	19	19
Avg low (°C)	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	6	6	6	6	6	6	6	6	6	6	6	6	6	7	7	7

	Avg high (°C)	Avg low (°C)
1	17	5
2	17	5
3	17	5
4	17	5
5	17	5
6	17	5
7	17	5
8	17	5
9	17	5
10	17	5
11	17	5
12	17	5
13	17	5
14	17	5
15	17	5
16	17	6
17	17	6
18	17	6
19	18	6
20	18	6
21	18	6
22	18	6
23	18	6
24	18	6
25	18	6
26	18	6
27	18	6
28	18	6
29	18	7
30	19	7
31	19	7

Robertson weather by month

How August compares with the rest of the year at a glance. August is the 10th-warmest and 4th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	29° / 15°	26	5	14	6.8
Feb	29° / 16°	24	4.5	13.3	6.8
Mar	27° / 14°	34	6	12.3	7.5
Apr	24° / 11°	32	5.5	11.2	7.9
May	21° / 8°	28	5	10.3	7.4
Jun	17° / 6°	33	6.6	9.8	6.3
Jul	17° / 5°	35	6	10	6.1
Aug	18° / 6°	34	6.5	10.7	6.5
Sep	20° / 8°	23	5.6	11.8	7.2
Oct	23° / 10°	37	5.6	12.9	7.8
Nov	25° / 12°	38	5.5	13.8	7.9
Dec	28° / 14°	25	4.9	14.2	7.5

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 49% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 18% of August, with mostly cloudy or overcast conditions the remaining 33%. Skies tend to cloud over as the month goes on.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	72	72	72	70	70	70	69	69	68	67	67	66	66	66	65	65	65	65	65	65	66	66	66	66	67	66	66	67	67	67	66
Cloudier (%)	28	28	28	30	30	30	31	31	32	33	33	34	34	34	35	35	35	35	35	35	34	34	34	34	33	34	34	33	33	33	34

	Clearer (%)	Cloudier (%)
1	72	28
2	72	28
3	72	28
4	70	30
5	70	30
6	70	30
7	69	31
8	69	31
9	68	32
10	67	33
11	67	33
12	66	34
13	66	34
14	66	34
15	65	35
16	65	35
17	65	35
18	65	35
19	65	35
20	65	35
21	66	34
22	66	34
23	66	34
24	66	34
25	67	33
26	66	34
27	66	34
28	67	33
29	67	33
30	67	33
31	66	34

Chance of precipitation in August

Any precipitation

Robertson gets around 34 mm of rain and snow over 6.5 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 20% and peaks near 22% on the wettest days, and about 0 day brings snow.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	20	19	19	19	19	19	19	19	19	19	20	20	20	20	20	20	20	21	21	21	21	21	22	22	22	21	21	21	21	21	20

	Rain chance (%)
1	20
2	19
3	19
4	19
5	19
6	19
7	19
8	19
9	19
10	19
11	20
12	20
13	20
14	20
15	20
16	20
17	20
18	21
19	21
20	21
21	21
22	21
23	22
24	22
25	22
26	21
27	21
28	21
29	21
30	21
31	20

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Dry (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

Wind in August

Winds average 8 km/h in August.

Across August, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (km/h)	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8	8
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	8	calm
2	8	calm
3	8	calm
4	8	calm
5	8	calm
6	8	calm
7	8	calm
8	8	calm
9	8	calm
10	8	calm
11	8	calm
12	8	calm
13	8	calm
14	8	calm
15	8	calm
16	8	calm
17	8	calm
18	8	calm
19	8	calm
20	8	calm
21	8	calm
22	8	calm
23	8	calm
24	8	calm
25	8	calm
26	8	calm
27	8	calm
28	8	calm
29	8	calm
30	8	calm
31	8	calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 10 h 18 min at the start of August to 11 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 54 minutes over August. Sunrise moves from 7:37 AM to 7:04 AM, and sunset from 5:56 PM to 6:17 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	10.3	10.3	10.4	10.4	10.4	10.4	10.5	10.5	10.5	10.6	10.6	10.6	10.6	10.7	10.7	10.7	10.8	10.8	10.8	10.9	10.9	10.9	11.0	11.0	11.0	11.1	11.1	11.1	11.2	11.2	11.2
Sunrise (AM)	7:37	7:37	7:36	7:35	7:34	7:33	7:32	7:31	7:30	7:29	7:28	7:27	7:26	7:25	7:24	7:23	7:21	7:20	7:19	7:18	7:17	7:15	7:14	7:13	7:12	7:10	7:09	7:08	7:06	7:05	7:04
Sunset (PM)	5:56	5:56	5:57	5:58	5:58	5:59	6:00	6:01	6:01	6:02	6:03	6:04	6:04	6:05	6:06	6:07	6:07	6:08	6:09	6:09	6:10	6:11	6:12	6:12	6:13	6:14	6:14	6:15	6:16	6:17	6:17

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	10.3	7:37	5:56
2	10.3	7:37	5:56
3	10.4	7:36	5:57
4	10.4	7:35	5:58
5	10.4	7:34	5:58
6	10.4	7:33	5:59
7	10.5	7:32	6:00
8	10.5	7:31	6:01
9	10.5	7:30	6:01
10	10.6	7:29	6:02
11	10.6	7:28	6:03
12	10.6	7:27	6:04
13	10.6	7:26	6:04
14	10.7	7:25	6:05
15	10.7	7:24	6:06
16	10.7	7:23	6:07
17	10.8	7:21	6:07
18	10.8	7:20	6:08
19	10.8	7:19	6:09
20	10.9	7:18	6:09
21	10.9	7:17	6:10
22	10.9	7:15	6:11
23	11.0	7:14	6:12
24	11.0	7:13	6:12
25	11.0	7:12	6:13
26	11.1	7:10	6:14
27	11.1	7:09	6:14
28	11.1	7:08	6:15
29	11.2	7:06	6:16
30	11.2	7:05	6:17
31	11.2	7:04	6:17

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 3.69 kWh/m².

For context, solar energy here swings from a low near 2.63 kWh/m² to a high of 7.98 kWh/m² in December across the year — August's 3.69 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	3.2	3.3	3.3	3.3	3.3	3.4	3.4	3.4	3.5	3.5	3.5	3.5	3.6	3.6	3.6	3.7	3.7	3.7	3.8	3.8	3.9	3.9	3.9	4.0	4.0	4.0	4.1	4.1	4.2	4.2	4.3
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	3.2	Moderate
2	3.3	Moderate
3	3.3	Moderate
4	3.3	Moderate
5	3.3	Moderate
6	3.4	Moderate
7	3.4	Moderate
8	3.4	Moderate
9	3.5	Moderate
10	3.5	Moderate
11	3.5	Moderate
12	3.5	Moderate
13	3.6	Moderate
14	3.6	Moderate
15	3.6	Moderate
16	3.7	Moderate
17	3.7	Moderate
18	3.7	Moderate
19	3.8	Moderate
20	3.8	Moderate
21	3.9	Moderate
22	3.9	Moderate
23	3.9	Moderate
24	4.0	Moderate
25	4.0	Bright
26	4.0	Bright
27	4.1	Bright
28	4.1	Bright
29	4.2	Bright
30	4.2	Bright
31	4.3	Bright

Planning a trip in August

Is August a good time to visit Robertson?

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.5

Sightseeing

10th-best month of the year

1.9

Beach & pool

10th-best month of the year

August is a reasonable time to visit Robertson for sightseeing.

What to pack for Robertson in August

From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In August, Robertson sees daytime highs around 18°C and nights near 6°C. Worth packing: a warm layer. About 7 days see rain.

a warm layer

UV index in Robertson in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Robertson 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	10	6	4	3	3	4	6	10	12	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	10	Very high
Apr	6	High
May	4	Moderate
Jun	3	Moderate
Jul	3	Moderate
Aug	4	Moderate
Sep	6	High
Oct	10	Extreme
Nov	12	Extreme
Dec	12	Extreme

Air quality in Robertson in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Robertson is worst in June — around 17 µg/m³ PM2.5 (moderate), about 2.9× the cleanest month (January, 6 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)	6	8	9	10	16	17	17	16	13	9	7	8
Level	Good	Good	Good	Good	Moderate	Moderate	Moderate	Moderate	Moderate	Good	Good	Good

	PM2.5 (µg/m³)	Level
Jan	6	Good
Feb	8	Good
Mar	9	Good
Apr	10	Good
May	16	Moderate
Jun	17	Moderate
Jul	17	Moderate
Aug	16	Moderate
Sep	13	Moderate
Oct	9	Good
Nov	7	Good
Dec	8	Good

Location & terrain

Where is Robertson?

Robertson sits at 33.8°S, 19.9°E, 187 m above sea level, in South Africa. The nearest listed city is Ashton, 16 km away.

Topography around Robertson

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Robertson.

Within 3 km, the terrain around Robertson has significant variations in elevation — a maximum elevation change of 273 m around an average of 209 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,558 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,214 m.

The land around Robertson is covered by shrubs (42%) and cropland (21%) within 3 km, shrubs (54%) and grassland (26%) within 16 km, and grassland (44%), shrubs (30%) and cropland (21%) within 80 km.

3 km

273 m

shrubs 42%

16 km

1,558 m

shrubs 54%

80 km

2,214 m

grassland 44%

treesshrubsgrasslandcroplandartificial surfacesbare terrainwater

← July Robertson year-round climate September →Best places to visit in August

August weather nearby: Ashton 16 km · Montagu 22 km · Worcester 44 km · Swellendam 57 km · Caledon 64 km · Franschhoek 72 km · Ceres 72 km · Le Roux 73 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 Robertson (-33.8034°, 19.8854°, elevation 187 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. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).

	Avg high (°C)	Avg low (°C)
1	17	5
2	17	5
3	17	5
4	17	5
5	17	5
6	17	5
7	17	5
8	17	5
9	17	5
10	17	5
11	17	5
12	17	5
13	17	5
14	17	5
15	17	5
16	17	6
17	17	6
18	17	6
19	18	6
20	18	6
21	18	6
22	18	6
23	18	6
24	18	6
25	18	6
26	18	6
27	18	6
28	18	6
29	18	7
30	19	7
31	19	7

	Clearer (%)	Cloudier (%)
1	72	28
2	72	28
3	72	28
4	70	30
5	70	30
6	70	30
7	69	31
8	69	31
9	68	32
10	67	33
11	67	33
12	66	34
13	66	34
14	66	34
15	65	35
16	65	35
17	65	35
18	65	35
19	65	35
20	65	35
21	66	34
22	66	34
23	66	34
24	66	34
25	67	33
26	66	34
27	66	34
28	67	33
29	67	33
30	67	33
31	66	34

	Rain chance (%)
1	20
2	19
3	19
4	19
5	19
6	19
7	19
8	19
9	19
10	19
11	20
12	20
13	20
14	20
15	20
16	20
17	20
18	21
19	21
20	21
21	21
22	21
23	22
24	22
25	22
26	21
27	21
28	21
29	21
30	21
31	20

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

	Avg high (°C)	Avg low (°C)
1	17	5
2	17	5
3	17	5
4	17	5
5	17	5
6	17	5
7	17	5
8	17	5
9	17	5
10	17	5
11	17	5
12	17	5
13	17	5
14	17	5
15	17	5
16	17	6
17	17	6
18	17	6
19	18	6
20	18	6
21	18	6
22	18	6
23	18	6
24	18	6
25	18	6
26	18	6
27	18	6
28	18	6
29	18	7
30	19	7
31	19	7

	Clearer (%)	Cloudier (%)
1	72	28
2	72	28
3	72	28
4	70	30
5	70	30
6	70	30
7	69	31
8	69	31
9	68	32
10	67	33
11	67	33
12	66	34
13	66	34
14	66	34
15	65	35
16	65	35
17	65	35
18	65	35
19	65	35
20	65	35
21	66	34
22	66	34
23	66	34
24	66	34
25	67	33
26	66	34
27	66	34
28	67	33
29	67	33
30	67	33
31	66	34

	Rain chance (%)
1	20
2	19
3	19
4	19
5	19
6	19
7	19
8	19
9	19
10	19
11	20
12	20
13	20
14	20
15	20
16	20
17	20
18	21
19	21
20	21
21	21
22	21
23	22
24	22
25	22
26	21
27	21
28	21
29	21
30	21
31	20

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100

	Avg high (°C)	Avg low (°C)
1	17	5
2	17	5
3	17	5
4	17	5
5	17	5
6	17	5
7	17	5
8	17	5
9	17	5
10	17	5
11	17	5
12	17	5
13	17	5
14	17	5
15	17	5
16	17	6
17	17	6
18	17	6
19	18	6
20	18	6
21	18	6
22	18	6
23	18	6
24	18	6
25	18	6
26	18	6
27	18	6
28	18	6
29	18	7
30	19	7
31	19	7

	Clearer (%)	Cloudier (%)
1	72	28
2	72	28
3	72	28
4	70	30
5	70	30
6	70	30
7	69	31
8	69	31
9	68	32
10	67	33
11	67	33
12	66	34
13	66	34
14	66	34
15	65	35
16	65	35
17	65	35
18	65	35
19	65	35
20	65	35
21	66	34
22	66	34
23	66	34
24	66	34
25	67	33
26	66	34
27	66	34
28	67	33
29	67	33
30	67	33
31	66	34

	Rain chance (%)
1	20
2	19
3	19
4	19
5	19
6	19
7	19
8	19
9	19
10	19
11	20
12	20
13	20
14	20
15	20
16	20
17	20
18	21
19	21
20	21
21	21
22	21
23	22
24	22
25	22
26	21
27	21
28	21
29	21
30	21
31	20

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100
31	100