July weather forecast
Saint-Denis, Reunion

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The glorious landscape of the Saint-Denis city, on Reunion Island
The glorious landscape of the Saint-Denis city, on Reunion Island

Weather in July

July continues the trend of cool temperatures and reduced rainfall in Saint-Denis. A noticeable drop in sea temperature can be observed, implying cooler maritime currents along the shores. Despite lesser daylight hours, city life does not wane. Instead, the city comes alive with a different kind of vigor as residents adapt to these cooler temperatures. Consequently, casual strolls and al-fresco dining make attractive options.

Temperature

Saint-Denis experiences its lowest average temperatures in July, reaching a peak of 25.2°C (77.4°F) and a minimum of 18.1°C (64.6°F).

Rainfall

In Saint-Denis, in July, during 8.8 rainfall days, 58mm (2.28") of precipitation is typically accumulated. In Saint-Denis, during the entire year, the rain falls for 119.3 days and collects up to 1659mm (65.31") of precipitation.

Sea temperature

In July, the average sea temperature is 24.4°C (75.9°F).
Note: People sensitive to cold might find swimming in 24.4°C (75.9°F) challenging. However, conditions like sunshine, wind, and ambient temperature play a significant role in the overall comfort. Wetsuits, while optional, might be beneficial.

Daylight

The average length of the day in July in Saint-Denis is 11h and 0min.
On the first day of July, sunrise is at 06:55 and sunset at 17:48. On the last day of the month, sunrise is at 06:49 and sunset at 17:59 +04.

Sunshine

In July, the average sunshine is 7.1h.

UV index

The months with the lowest UV index in Saint-Denis are June and July, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: During July, 6 as the daily maximum UV index converts into the following advice:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Notice! Sand and water reflections contribute to a stronger UV exposure.
Updated: Feb 5, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

What time of the year is the coldest in Saint-Denis?

July is the coldest month of the year, registering average temperatures as high as 25.2°C (77.4°F) and as low as 18.1°C (64.6°F).

What is the average July temperature in Saint-Denis?

In Saint-Denis, 25.2°C (77.4°F) is the average high-temperature and 18.1°C (64.6°F) is the average low-temperature during July.

How many days does it rain in July in Saint-Denis?

In Saint-Denis, during July, the rain falls for 8.8 days and regularly aggregates up to 58mm (2.28") of precipitation.

How warm is the water in July in Saint-Denis?

In Saint-Denis, Reunion, in July, the average water temperature is 24.4°C (75.9°F). A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 24.4°C (75.9°F) water.

How many hours of daylight does Saint-Denis have in July?

In Saint-Denis, the average day length in July is 11h and 0min.

When is the sunrise / sunset in July in Saint-Denis?

On the first day of July in Saint-Denis, Reunion, sunrise is at 06:55 and sunset at 17:48. On the last day of the month, sunrise is at 06:49 and sunset at 17:59 +04.

How many hours of sunshine does Saint-Denis have in July?

In Saint-Denis, the average sunshine duration in July is 7.1h.

When is the lowest UV index in Saint-Denis?

The months with the lowest UV index in Saint-Denis, Reunion, are June and July, with an average maximum UV index of 6.

What is the UV index intensity in July in Saint-Denis?

In Saint-Denis, the average daily maximum UV index in July is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from unsafe exposure to Sun's UV rays.
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in July
Saint-Denis, Reunion

Average temperature in July - Saint-Denis, Reunion
  • Average high temperature in July: 25.2°C

The warmest months (with the highest average high temperature) are January and February (30.1°C).
The month with the lowest average high temperature is July (25.2°C).

  • Average low temperature in July: 18.1°C

The month with the highest average low temperature is February (23.7°C).
The coldest month (with the lowest average low temperature) is August (18°C).

Average rainfall in July
Saint-Denis, Reunion

Average rainfall in July - Saint-Denis, Reunion
  • Average rainfall in July: 57.8mm

The wettest month (with the highest rainfall) is February (351mm).
The driest month (with the least rainfall) is October (43.4mm).

Average rainfall days in July
Saint-Denis, Reunion

Average rainfall days in July - Saint-Denis, Reunion
  • Average rainfall days in July: 8.8 days

The month with the highest number of rainy days is February (14.3 days).
The month with the least rainy days is November (5.9 days).

Average sea temperature in July
Saint-Denis, Reunion

Average sea temperature in July - Saint-Denis, Reunion
  • Average sea temperature in July: 24.4°C

The best month for swimming (with the highest average sea temperature) is March (28.5°C).
The coldest months (with the lowest average sea temperature) are August and September (23.8°C).

Average daylight in July /
Average sunshine in July
Saint-Denis, Reunion

Average daylight in July / Average sunshine in July - Saint-Denis, Reunion
  • Average daylight in July: 11h and 0min

The month with the longest days is December (Average daylight: 13h and 24min).
The month with the shortest days is June (Average daylight: 10h and 54min).

  • Average sunshine in July: 7h and 1min

The months with the most sunshine are April and December (Average sunshine: 7h and 24min).
The months with the least sunshine are January and October (Average sunshine: 6h and 48min).

Average UV index in July
Saint-Denis, Reunion

Average UV index in July - Saint-Denis, Reunion
  • Average UV index in July: 6

The months with the highest UV index are January, February, March, November and December (UV index 12).
The months with the lowest UV index are June and July (UV index 6).

Saint-Denis, Reunion

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