Riversdale weather in August

In August, Riversdale sees average daytime highs of 20°C and overnight lows near 8°C, with 30 mm of rain across 5.8 wet days and about 10.7 hours of daylight. It is the 10th-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 20°C through the month. The sky is clear or mostly clear about 50% 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 Riversdale's 5th-clearest and 8th-windiest month. For the whole year in context, see Riversdale's year-round climate.

Daytime high: 20°; 10th warmest
Overnight low: 8°; 3rd coldest
Rainfall: 30 mm; 5.8 wet days
Daylight: 10 h 42 min; 7:18 AM – 6:01 PM
Cloud cover: 42%; 5th clearest
Wind: 10 km/h; 8th windiest
Solar energy: 3.63 kWh/m²
Travel score: 7.2; out of 10

Riversdale is town in the Western Cape, South Africa.

Founded: 1838

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

← July Riversdale 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

Day-to-day highs hold fairly steady near 20°C through the month.

A typical August day in Riversdale reaches about 20°C in the afternoon and slips back to 8°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 25°C. Set against its neighbours, August runs on par with July and about 2°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)	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	20	20	20	20	20	20	20	20	20	20	20	20	20	20	21
Avg low (°C)	7	7	7	7	7	7	7	7	7	7	7	7	7	7	8	8	8	8	8	8	8	8	8	8	8	8	8	9	9	9	9

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

Riversdale weather by month

How August compares with the rest of the year at a glance. August is the 10th-warmest and 5th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	28° / 17°	27	5.3	14	7.4
Feb	28° / 17°	23	5.3	13.3	7.1
Mar	27° / 16°	37	6.4	12.3	7.4
Apr	24° / 13°	35	5.9	11.2	7.7
May	22° / 10°	28	5.2	10.3	7.6
Jun	19° / 7°	26	5.4	9.8	7.2
Jul	19° / 7°	27	5.6	10	7.1
Aug	20° / 8°	30	5.8	10.7	7.2
Sep	21° / 10°	23	5	11.8	7.5
Oct	24° / 12°	38	5.8	12.9	7.7
Nov	25° / 14°	43	6.1	13.8	7.7
Dec	27° / 16°	28	5.3	14.2	7.5

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 50% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 20% of August, with mostly cloudy or overcast conditions the remaining 31%. 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	72	72	71	71	71	70	70	71	70	70	70	69	68	68	68	69	69	68	69	68	69	69	68	68	67	67	67	66
Cloudier (%)	28	28	28	28	28	29	29	29	30	30	29	30	30	30	31	32	32	32	31	31	32	31	32	31	31	32	32	33	33	33	34

	Clearer (%)	Cloudier (%)
1	72	28
2	72	28
3	72	28
4	72	28
5	72	28
6	71	29
7	71	29
8	71	29
9	70	30
10	70	30
11	71	29
12	70	30
13	70	30
14	70	30
15	69	31
16	68	32
17	68	32
18	68	32
19	69	31
20	69	31
21	68	32
22	69	31
23	68	32
24	69	31
25	69	31
26	68	32
27	68	32
28	67	33
29	67	33
30	67	33
31	66	34

Chance of precipitation in August

Any precipitation

Riversdale gets around 30 mm of rain over 5.8 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 18% and peaks near 19% on the wettest days.

	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 (%)	17	17	16	16	16	16	16	17	17	17	17	18	18	18	18	18	19	19	19	19	19	19	19	19	19	19	19	18	18	18	17

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

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 99% 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	99	99	99	99	99	99	99	99	99	98	98	98	98	98	98	98	98	98	98	98	98	98	98	98
Comfortable (%)	0	0	0	0	0	0	0	1	1	1	1	1	1	1	1	1	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	100	0
7	100	0
8	99	1
9	99	1
10	99	1
11	99	1
12	99	1
13	99	1
14	99	1
15	99	1
16	99	1
17	98	2
18	98	2
19	98	2
20	98	2
21	98	2
22	98	2
23	98	2
24	98	2
25	98	2
26	98	2
27	98	2
28	98	2
29	98	2
30	98	2
31	98	2

Wind in August

Winds average 10 km/h in August.

Across August, daily wind ranges from about 9 km/h on the calmest days to 10 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)	9	9	9	9	9	9	9	9	9	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10	10
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	9	calm
2	9	calm
3	9	calm
4	9	calm
5	9	calm
6	9	calm
7	9	calm
8	9	calm
9	9	calm
10	10	calm
11	10	calm
12	10	calm
13	10	calm
14	10	calm
15	10	calm
16	10	calm
17	10	calm
18	10	calm
19	10	calm
20	10	calm
21	10	calm
22	10	calm
23	10	calm
24	10	calm
25	10	calm
26	10	calm
27	10	calm
28	10	calm
29	10	calm
30	10	calm
31	10	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 7:33 AM to 6:58 AM, and sunset from 5:50 PM to 6:12 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	10.3	10.4	10.4	10.4	10.4	10.5	10.5	10.5	10.6	10.6	10.6	10.7	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
Sunrise (AM)	7:33	7:32	7:31	7:30	7:29	7:28	7:27	7:26	7:25	7:24	7:23	7:22	7:21	7:20	7:19	7:18	7:16	7:15	7:14	7:13	7:12	7:10	7:09	7:08	7:06	7:05	7:04	7:02	7:01	7:00	6:58
Sunset (PM)	5:50	5:50	5:51	5:52	5:52	5:53	5:54	5:55	5:55	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

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	10.3	7:33	5:50
2	10.3	7:32	5:50
3	10.3	7:31	5:51
4	10.4	7:30	5:52
5	10.4	7:29	5:52
6	10.4	7:28	5:53
7	10.4	7:27	5:54
8	10.5	7:26	5:55
9	10.5	7:25	5:55
10	10.5	7:24	5:56
11	10.6	7:23	5:57
12	10.6	7:22	5:58
13	10.6	7:21	5:58
14	10.7	7:20	5:59
15	10.7	7:19	6:00
16	10.7	7:18	6:01
17	10.7	7:16	6:01
18	10.8	7:15	6:02
19	10.8	7:14	6:03
20	10.8	7:13	6:04
21	10.9	7:12	6:04
22	10.9	7:10	6:05
23	10.9	7:09	6:06
24	11.0	7:08	6:07
25	11.0	7:06	6:07
26	11.0	7:05	6:08
27	11.1	7:04	6:09
28	11.1	7:02	6:09
29	11.1	7:01	6:10
30	11.2	7:00	6:11
31	11.2	6:58	6:12

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 3.63 kWh/m².

For context, solar energy here swings from a low near 2.63 kWh/m² to a high of 7.36 kWh/m² in December across the year — August's 3.63 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	3.2	3.2	3.3	3.3	3.3	3.4	3.4	3.4	3.4	3.5	3.5	3.5	3.6	3.6	3.6	3.6	3.7	3.7	3.8	3.8	3.8	3.9	3.9	3.9	4.0	4.0	4.0	4.1	4.1	4.2
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	Moderate	Moderate	Bright	Bright	Bright	Bright	Bright

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

Planning a trip in August

Is August a good time to visit Riversdale?

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

7.2

Sightseeing

9th-best month of the year

3.5

Beach & pool

10th-best month of the year

August is one of the better times to visit Riversdale for general sightseeing.

What to pack for Riversdale in August

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

In August, Riversdale sees daytime highs around 20°C and nights near 8°C. Worth packing: a warm layer. About 6 days see rain.

a warm layer

Sea temperature near Riversdale in August

The nearest coast averages about 16°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 33 km away) is warmest in February at about 22°C and coldest in July near 15°C.

It's comfortable for a long swim from Dec 13 to Mar 25 — about 3.4 months when the water holds above 20°C.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	21	22	21	19	17	16	15	16	16	17	19	20
Comfort	Refreshing	Refreshing	Refreshing	Cool	Cool	Cool	Cool	Cool	Cool	Cool	Cool	Refreshing

	Sea temperature (°C)	Comfort
Jan	21	Refreshing
Feb	22	Refreshing
Mar	21	Refreshing
Apr	19	Cool
May	17	Cool
Jun	16	Cool
Jul	15	Cool
Aug	16	Cool
Sep	16	Cool
Oct	17	Cool
Nov	19	Cool
Dec	20	Refreshing

UV index in Riversdale 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 Riversdale peaks around January 14 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

Location & terrain

Where is Riversdale?

Riversdale sits at 34.1°S, 21.3°E, 121 m above sea level, in South Africa. The nearest listed city is Swellendam, 76 km away.

Topography around Riversdale

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

Within 3 km, the terrain around Riversdale has only modest variations in elevation — a maximum elevation change of 160 m around an average of 142 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,339 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,273 m.

The land around Riversdale is covered by cropland (39%) and shrubs (24%) within 3 km, cropland (40%), shrubs (26%) and grassland (24%) within 16 km, and shrubs (32%), grassland (28%) and water (23%) within 80 km.

3 km

160 m

cropland 39%

16 km

1,339 m

cropland 40%

80 km

2,273 m

shrubs 32%

treesshrubsgrasslandcroplandartificial surfaceswater

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

August weather nearby: Swellendam 76 km · Mossel Bay 82 km · Groot-Brakrivier 89 km · Oudtshoorn 103 km · Montagu 110 km · George 112 km · Ashton 115 km · Bredasdorp 122 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 Riversdale (-34.0934°, 21.2572°, elevation 121 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. 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	19	7
2	19	7
3	19	7
4	19	7
5	19	7
6	19	7
7	19	7
8	19	7
9	19	7
10	19	7
11	19	7
12	19	7
13	19	7
14	19	7
15	19	8
16	19	8
17	20	8
18	20	8
19	20	8
20	20	8
21	20	8
22	20	8
23	20	8
24	20	8
25	20	8
26	20	8
27	20	8
28	20	9
29	20	9
30	20	9
31	21	9

	Clearer (%)	Cloudier (%)
1	72	28
2	72	28
3	72	28
4	72	28
5	72	28
6	71	29
7	71	29
8	71	29
9	70	30
10	70	30
11	71	29
12	70	30
13	70	30
14	70	30
15	69	31
16	68	32
17	68	32
18	68	32
19	69	31
20	69	31
21	68	32
22	69	31
23	68	32
24	69	31
25	69	31
26	68	32
27	68	32
28	67	33
29	67	33
30	67	33
31	66	34

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

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	100	0
7	100	0
8	99	1
9	99	1
10	99	1
11	99	1
12	99	1
13	99	1
14	99	1
15	99	1
16	99	1
17	98	2
18	98	2
19	98	2
20	98	2
21	98	2
22	98	2
23	98	2
24	98	2
25	98	2
26	98	2
27	98	2
28	98	2
29	98	2
30	98	2
31	98	2

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

	Clearer (%)	Cloudier (%)
1	72	28
2	72	28
3	72	28
4	72	28
5	72	28
6	71	29
7	71	29
8	71	29
9	70	30
10	70	30
11	71	29
12	70	30
13	70	30
14	70	30
15	69	31
16	68	32
17	68	32
18	68	32
19	69	31
20	69	31
21	68	32
22	69	31
23	68	32
24	69	31
25	69	31
26	68	32
27	68	32
28	67	33
29	67	33
30	67	33
31	66	34

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

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	100	0
7	100	0
8	99	1
9	99	1
10	99	1
11	99	1
12	99	1
13	99	1
14	99	1
15	99	1
16	99	1
17	98	2
18	98	2
19	98	2
20	98	2
21	98	2
22	98	2
23	98	2
24	98	2
25	98	2
26	98	2
27	98	2
28	98	2
29	98	2
30	98	2
31	98	2

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

	Clearer (%)	Cloudier (%)
1	72	28
2	72	28
3	72	28
4	72	28
5	72	28
6	71	29
7	71	29
8	71	29
9	70	30
10	70	30
11	71	29
12	70	30
13	70	30
14	70	30
15	69	31
16	68	32
17	68	32
18	68	32
19	69	31
20	69	31
21	68	32
22	69	31
23	68	32
24	69	31
25	69	31
26	68	32
27	68	32
28	67	33
29	67	33
30	67	33
31	66	34

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

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	100	0
7	100	0
8	99	1
9	99	1
10	99	1
11	99	1
12	99	1
13	99	1
14	99	1
15	99	1
16	99	1
17	98	2
18	98	2
19	98	2
20	98	2
21	98	2
22	98	2
23	98	2
24	98	2
25	98	2
26	98	2
27	98	2
28	98	2
29	98	2
30	98	2
31	98	2