Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average sea temperature in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
July's average high-temperature stands at a still comfortable 16.3°C (61.3°F), showing little deviation from June's 16.7°C (62.1°F). Consistently, Hermanus reports average nighttime temperatures of 11.8°C (53.2°F) during July, a marginal step down from its daytime highs.Humidity
April, June and July, with an average relative humidity of 74%, are the least humid months.Rainfall
In Hermanus, during July, the rain falls for 9.3 days and regularly aggregates up to 31mm (1.22") of precipitation. In Hermanus, during the entire year, the rain falls for 113.9 days and collects up to 270mm (10.63") of precipitation.Sea temperature
In Hermanus, in July, the average water temperature is 15.6°C (60.1°F).Note: Swimming in 15.6°C (60.1°F) is not pleasurable for most people. Breathing control grows increasingly challenging as the water temperature falls under 21°C (69.8°F).
Daylight
In Hermanus, the average length of the day in July is 10h and 7min.On the first day of July in Hermanus, South Africa, sunrise is at 07:50 and sunset at 17:43. On the last day of the month, sunrise is at 07:36 and sunset at 18:02 SAST.
Sunshine
In July, the average sunshine is 6.5h.UV index
May through September, with an average maximum UV index of 4, are months with the lowest UV index in Hermanus. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index, 4 during July, leads to the following recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Frequently asked questions
What is the usual temperature for Hermanus in July?
What are the least humid months in Hermanus?
What is the average humidity in July in Hermanus?
How many days does it rain in July in Hermanus?
What is the sea temperature in July in Hermanus?
What is the average length of the day in July in Hermanus?
When is the sunrise / sunset in July in Hermanus?
How many hours of sunshine does Hermanus have in July?
What is the month with the lowest UV index in Hermanus?
How high is the UV index in July in Hermanus?
Average temperature in July
Hermanus, South Africa
- Average high temperature in July: 16.3°C
The warmest month (with the highest average high temperature) is February (23.3°C).
The month with the lowest average high temperature is August (16.2°C).
- Average low temperature in July: 11.8°C
The month with the highest average low temperature is February (18.3°C).
The coldest month (with the lowest average low temperature) is August (11.5°C).
Average pressure in July
Hermanus, South Africa
- Average pressure in July: 1021.8mbar
The month with the highest atmospheric pressure is July (1021.8mbar).
The month with the lowest atmospheric pressure is February (1013.8mbar).
Average wind speed in July
Hermanus, South Africa
- Average wind speed in July: 18.9km/h
The windiest month (with the highest average wind speed) is November (21.5km/h).
The calmest month (with the lowest average wind speed) is May (17.7km/h).
Average humidity in July
Hermanus, South Africa
- Average humidity in July: 74%
The months with the highest relative humidity are January, February, March, May, September and October (76%).
The months with the lowest relative humidity are April, June and July (74%).
Average rainfall in July
Hermanus, South Africa
- Average rainfall in July: 31mm
The wettest month (with the highest rainfall) is June (47mm).
The driest months (with the least rainfall) are February and December (13mm).
Average rainfall days in July
Hermanus, South Africa
- Average rainfall days in July: 9.3 days
The month with the highest number of rainy days is March (12.3 days).
The month with the least rainy days is October (7.1 days).
Average sea temperature in July
Hermanus, South Africa
- Average sea temperature in July: 15.6°C
The best month for swimming (with the highest average sea temperature) is January (20°C).
The coldest month (with the lowest average sea temperature) is August (15.4°C).
Average daylight in July /
Average sunshine in July
Hermanus, South Africa
- Average daylight in July: 10h and 1min
The month with the longest days is December (Average daylight: 14h and 24min).
The month with the shortest days is June (Average daylight: 9h and 54min).
- Average sunshine in July: 6h and 3min
The month with the most sunshine is December (Average sunshine: 10h and 24min).
The month with the least sunshine is June (Average sunshine: 6h and 12min).
Average sunshine days in July
Hermanus, South Africa
- Average sunshine days in July: 19.7 days
The month with the most sunshine days is October (22 days).
The month with the least sunshine days is February (13.9 days).
Average UV index in July
Hermanus, South Africa
- Average UV index in July: 4
The months with the highest UV index are January and February (UV index 6).
The months with the lowest UV index are May, June, July, August and September (UV index 4).
Average cloud cover in July
Hermanus, South Africa
- Average cloud cover in July: 29
The months with the most cloud cover are March and October (Cloud cover 33).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in July
Hermanus, South Africa
- Average visibility in July: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Hermanus, South Africa
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