Hermanus weather in July

In July, Hermanus sees average daytime highs of 16°C and overnight lows near 12°C, with 85 mm of rain across 9.7 wet days and about 9.9 hours of daylight. It is the 11th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 16°C through the month. The sky is clear or mostly clear about 45% of the time in July, and the air most often feels dry.

Daylight stretches from about 9 h 42 min at the start of July to 10 h 12 min by month's end. Set against the rest of the year, July is Hermanus's 5th-clearest and 10th-windiest month. For the whole year in context, see Hermanus's year-round climate.

Daytime high
16°
11th warmest
Overnight low
12°
2nd coldest
Rainfall
85 mm
9.7 wet days
Daylight
9 h 54 min
7:51 AM – 5:46 PM
Cloud cover
44%
5th clearest
Wind
17 km/h
10th windiest
Solar energy
2.64 kWh/m²
Travel score
5.1
out of 10

Hermanus is town in the Western Cape, South Africa.

Density
2,329/km²
people per km²
Founded
1891

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

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 16°C through the month.

A typical July day in Hermanus reaches about 16°C in the afternoon and slips back to 12°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 18°C. Set against its neighbours, July runs on par with June and on par with August.

10°15°20°151015202531
Avg high (°C)Avg low (°C)
11612
21612
31612
41612
51612
61612
71612
81612
91612
101612
111612
121612
131612
141612
151612
161611
171611
181611
191611
201611
211611
221611
231611
241611
251611
261611
271611
281611
291611
301611
311611

Hermanus weather by month

How July compares with the rest of the year at a glance. July is the 11th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan22° / 18°224.9147.9
Feb22° / 19°215.313.37.9
Mar21° / 18°275.912.37.5
Apr20° / 16°426.411.26.9
May18° / 14°528.210.26.3
Jun16° / 12°8410.29.75.3
Jul16° / 12°859.79.95.1
Aug16° / 12°7310.510.75.0
Sep16° / 13°488.411.85.5
Oct18° / 14°407.112.96.4
Nov19° / 16°386.413.86.9
Dec21° / 17°245.114.37.6

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 45% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 21% of July, with mostly cloudy or overcast conditions the remaining 35%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16535
26535
36535
46535
56535
66436
76436
86436
96436
106436
116535
126535
136436
146436
156535
166535
176535
186535
196535
206535
216634
226634
236634
246634
256733
266733
276733
286733
296832
306832
316931

Chance of precipitation in July

Any precipitation

Hermanus gets around 85 mm of rain over 9.7 wet days in July, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 32% and peaks near 34% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
131
231
331
431
531
631
731
831
931
1031
1131
1232
1332
1432
1532
1633
1733
1833
1933
2033
2133
2233
2333
2434
2534
2634
2734
2834
2934
3034
3134

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the dry band about 98% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1973
2973
3973
4973
5973
6973
7973
8973
9973
10973
11973
12973
13973
14973
15982
16982
17982
18982
19982
20982
21982
22982
23982
24982
25982
26982
27991
28991
29991
30991
31991

Wind in July

Winds average 17 km/h in July.

Across July, daily wind ranges from about 17 km/h on the calmest days to 18 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
117light breeze
217light breeze
317light breeze
417light breeze
517light breeze
617light breeze
717light breeze
817light breeze
917light breeze
1017light breeze
1117light breeze
1217light breeze
1317light breeze
1417light breeze
1517light breeze
1617light breeze
1717light breeze
1818light breeze
1918light breeze
2018light breeze
2118light breeze
2218light breeze
2318light breeze
2418light breeze
2518light breeze
2618light breeze
2718light breeze
2818light breeze
2918light breeze
3018light breeze
3118light breeze

Sunrise & sunset in July

DaylightNight

Daylight runs from about 9 h 42 min at the start of July to 10 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 30 minutes over July. Sunrise moves from 7:55 AM to 7:42 AM, and sunset from 5:38 PM to 5:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.77:555:38
29.77:555:39
39.77:555:39
49.77:555:39
59.87:545:40
69.87:545:40
79.87:545:41
89.87:545:41
99.87:545:42
109.87:545:42
119.87:535:43
129.87:535:43
139.97:535:44
149.97:525:45
159.97:525:45
169.97:515:46
179.97:515:47
189.97:515:47
1910.07:505:48
2010.07:505:48
2110.07:495:49
2210.07:485:50
2310.07:485:50
2410.17:475:51
2510.17:475:52
2610.17:465:53
2710.17:455:53
2810.27:445:54
2910.27:445:55
3010.27:435:55
3110.27:425:56

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 2.64 kWh/m².

For context, solar energy here swings from a low near 2.44 kWh/m² to a high of 7.76 kWh/m² in December across the year — July's 2.64 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.5Moderate
22.5Moderate
32.5Moderate
42.5Moderate
52.5Moderate
62.5Moderate
72.5Moderate
82.5Moderate
92.5Moderate
102.5Moderate
112.6Moderate
122.6Moderate
132.6Moderate
142.6Moderate
152.6Moderate
162.6Moderate
172.6Moderate
182.7Moderate
192.7Moderate
202.7Moderate
212.7Moderate
222.7Moderate
232.8Moderate
242.8Moderate
252.8Moderate
262.8Moderate
272.9Moderate
282.9Moderate
292.9Moderate
302.9Moderate
313.0Moderate
Planning a trip in July

Is July a good time to visit Hermanus?

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

5.1
Sightseeing
11th-best month of the year
0.5
Beach & pool
11th-best month of the year

July is a reasonable time to visit Hermanus for sightseeing.

What to pack for Hermanus in July

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

In July, Hermanus sees daytime highs around 16°C and nights near 12°C. Worth packing: a warm layer and rain gear. About 10 days see rain.

a warm layerrain gear

Sea temperature near Hermanus in July

The nearest coast averages about 15°C in July — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in January at about 19°C and coldest in July near 15°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

14°16°18°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan19Cool
Feb19Cool
Mar18Cool
Apr16Cool
May16Cool
Jun16Cool
Jul15Bracing
Aug15Bracing
Sep15Cool
Oct16Cool
Nov17Cool
Dec19Cool

UV index in Hermanus in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 3. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Hermanus 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 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateExtremeJan 13UV 13Jun 20UV 3
UV index (midday)Level
Jan13Extreme
Feb10Very high
Mar9Very high
Apr6High
May3Moderate
Jun3Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct10Extreme
Nov11Extreme
Dec12Extreme

Air quality in Hermanus in July

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Hermanus is worst in June — around 18 µg/m³ PM2.5 (moderate), about 2.6× the cleanest month (November, 7 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodGoodModerateGoodJun 1718 µg/m³Nov 177 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb8Good
Mar12Moderate
Apr11Good
May16Moderate
Jun18Moderate
Jul16Moderate
Aug15Moderate
Sep13Moderate
Oct9Good
Nov7Good
Dec8Good
Location & terrain

Where is Hermanus?

Hermanus sits at 34.4°S, 19.2°E, 27 m above sea level, in South Africa. The nearest listed city is Gansbaai, 21 km away.

Topography around Hermanus

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

Within 3 km, the terrain around Hermanus has significant variations in elevation — a maximum elevation change of 314 m around an average of 50 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,155 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,973 m.

The land around Hermanus is covered by water (37%), grassland (20%) and artificial surfaces (20%) within 3 km, water (49%) and grassland (24%) within 16 km, and water (37%) and grassland (28%) within 80 km.

3 km
314 m
16 km
1,155 m
80 km
1,973 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
July weather nearby: Gansbaai 21 km · Caledon 27 km · Grabouw 36 km · Somerset West 53 km · Franschhoek 57 km · Le Roux 60 km · Stellenbosch 64 km · Kuils River 72 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
Christian 86%or other traditional African religions 5%nothing in particular 5%Muslim 2%

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 Hermanus (-34.4187°, 19.2345°, elevation 27 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. 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).