July weather forecast
Port Saint Johns, South Africa

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Weather in July

July, the same as June, is another enjoyable winter month in Port Saint Johns, South Africa, with an average temperature fluctuating between 7.2°C (45°F) and 19.1°C (66.4°F).

Temperature

Port Saint Johns's coldest month, July, generally records average temperatures ranging from a high of 19.1°C (66.4°F) to a low of 7.2°C (45°F).

Humidity

The months with the lowest humidity in Port Saint Johns are June through August, with an average relative humidity of 55%.

Rainfall

In July, in Port Saint Johns, South Africa, the rain falls for 5.8 days. Throughout July, 12mm (0.47") of precipitation is accumulated. Throughout the year, there are 172 rainfall days, and 557mm (21.93") of precipitation is accumulated.

Sea temperature

In Port Saint Johns, the average seawater temperature in July is 21.8°C (71.2°F).
Note: Most people find swimming in 21.8°C (71.2°F) unenjoyable. As the water temperature falls from 21°C (69.8°F) to 15°C (59°F), controlling one's breathing becomes harder.

Daylight

The average length of the day in July in Port Saint Johns is 10h and 19min.
On the first day of July in Port Saint Johns, sunrise is at 07:02 and sunset at 17:09. On the last day of the month, sunrise is at 06:50 and sunset at 17:26 SAST.

Sunshine

In July, the average sunshine in Port Saint Johns is 7.1h.

UV index

The months with the lowest UV index in Port Saint Johns are May through July, September and October, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index of 4 during July translates into these guidelines:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Stay sun-safe with clothing that is both closely woven and worn loosely. Caution! The Sun's UV intensity grows with reflections off sand and water.
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Frequently asked questions

What month is the coldest in Port Saint Johns?

Temperature records in Port Saint Johns mark July as the coldest month, with highs averaging 19.1°C (66.4°F) and lows at 7.2°C (45°F).

What are July temperatures in Port Saint Johns?

The high-temperature, in July, in Port Saint Johns, is 19.1°C (66.4°F), while the low-temperature averages to 7.2°C (45°F).

What is the least humid month in Port Saint Johns?

The months with the lowest humidity in Port Saint Johns, South Africa, are June through August, with an average relative humidity of 55%.

What is the average humidity in July in Port Saint Johns?

In Port Saint Johns, the average relative humidity in July is 55%.

How many days does it rain in July in Port Saint Johns?

In Port Saint Johns, in July, during 5.8 rainfall days, 12mm (0.47") of precipitation is typically accumulated.

What is the sea temperature in July in Port Saint Johns?

In Port Saint Johns, the average seawater temperature in July is 21.8°C (71.2°F). For swimming, a surface water temperature of 21.8°C (71.2°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

How many hours of daylight does Port Saint Johns have in July?

In Port Saint Johns, South Africa, the average day length in July is 10h and 19min.

What time are sunrise and sunset in July in Port Saint Johns?

On the first day of July in Port Saint Johns, South Africa, sunrise is at 07:02 and sunset at 17:09. On the last day of the month, sunrise is at 06:50 and sunset at 17:26 SAST.

How many hours of sunshine does Port Saint Johns have in July?

In July, the average sunshine duration is 7.1h.

When is the lowest UV index in Port Saint Johns?

The months with the lowest UV index are May through July, September and October, with an average maximum UV index of 4.

How high is the UV index in July in Port Saint Johns?

In Port Saint Johns, South Africa, the average daily maximum UV index in July is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to Sun's UV rays.

Average temperature in July
Port Saint Johns, South Africa

Average temperature in July - Port Saint Johns, South Africa
  • Average high temperature in July: 19.1°C

The warmest months (with the highest average high temperature) are January and February (25.8°C).
The month with the lowest average high temperature is July (19.1°C).

  • Average low temperature in July: 7.2°C

The month with the highest average low temperature is February (15.3°C).
The coldest month (with the lowest average low temperature) is July (7.2°C).

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Average pressure in July
Port Saint Johns, South Africa

Average pressure in July - Port Saint Johns, South Africa
  • Average pressure in July: 1023.5mbar

The month with the highest atmospheric pressure is July (1023.5mbar).
The month with the lowest atmospheric pressure is January (1014.1mbar).

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Average wind speed in July
Port Saint Johns, South Africa

Average wind speed in July - Port Saint Johns, South Africa
  • Average wind speed in July: 7.7km/h

The windiest month (with the highest average wind speed) is August (8.4km/h).
The calmest month (with the lowest average wind speed) is March (6.5km/h).

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Average humidity in July
Port Saint Johns, South Africa

Average humidity in July - Port Saint Johns, South Africa
  • Average humidity in July: 55%

The month with the highest relative humidity is February (83%).
The months with the lowest relative humidity are June, July and August (55%).

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Average rainfall in July
Port Saint Johns, South Africa

Average rainfall in July - Port Saint Johns, South Africa
  • Average rainfall in July: 12mm

The wettest month (with the highest rainfall) is January (93mm).
The driest month (with the least rainfall) is June (11mm).

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Average rainfall days in July
Port Saint Johns, South Africa

Average rainfall days in July - Port Saint Johns, South Africa
  • Average rainfall days in July: 5.8 days

The month with the highest number of rainy days is December (23.5 days).
The month with the least rainy days is June (5 days).

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Average sea temperature in July
Port Saint Johns, South Africa

Average sea temperature in July - Port Saint Johns, South Africa
  • Average sea temperature in July: 21.8°C

The best month for swimming (with the highest average sea temperature) is March (26.4°C).
The coldest month (with the lowest average sea temperature) is August (21°C).

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Average daylight in July /
Average sunshine in July
Port Saint Johns, South Africa

Average daylight in July / Average sunshine in July - Port Saint Johns, South Africa
  • Average daylight in July: 10h and 2min

The month with the longest days is December (Average daylight: 14h and 12min).
The month with the shortest days is June (Average daylight: 10h and 6min).

  • Average sunshine in July: 7h and 1min

The month with the most sunshine is October (Average sunshine: 8h and 36min).
The month with the least sunshine is April (Average sunshine: 6h and 12min).

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Average sunshine days in July
Port Saint Johns, South Africa

Average sunshine days in July - Port Saint Johns, South Africa
  • Average sunshine days in July: 24.5 days

The month with the most sunshine days is July (24.5 days).
The month with the least sunshine days is January (4.4 days).

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Average UV index in July
Port Saint Johns, South Africa

Average UV index in July - Port Saint Johns, South Africa
  • Average UV index in July: 4

The months with the highest UV index are January, February, March, April, August, November and December (UV index 5).
The months with the lowest UV index are May, June, July, September and October (UV index 4).

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Average cloud cover in July
Port Saint Johns, South Africa

Average cloud cover in July - Port Saint Johns, South Africa
  • Average cloud cover in July: 18

The month with the most cloud cover is December (Cloud cover 60).
The month with the least cloud cover is June (Cloud cover 17).

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Average visibility in July
Port Saint Johns, South Africa

Average visibility in July - Port Saint Johns, South Africa
  • Average visibility in July: 9km

The month with the highest visibility is June (10km).
The month with the lowest visibility is January (6km).

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Port Saint Johns, South Africa

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