July weather - Winter 2024 - Diego Garcia, British Indian Ocean Territory

Weather in July
Frequently asked questions
Average temperature 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 UV index in July

Palm trees bent towards the ocean in a lagoon beach in Diego Garcia, within British Indian Ocean Territory

Weather in July

Rainfall in July steps down slightly from 295mm (11.61") to 226mm (8.9"), indicating a slight break in the monsoon season's intensity. Diego Garcia's temperatures show no significant variation, reflecting unwavering climate conditions. June and July share similar daylight hours of about 11.7, and a UV index of 10, reiterating the consistency of the tropical weather pattern. Despite the lesser rainfall, July remains a part of the monsoon belt, forecasting frequent showers throughout the month.

Temperature

In Diego Garcia, the coldest period comes during March through November, when the average high-temperature touches 30°C (86°F).

Rainfall

In Diego Garcia, during July, the rain falls for 14 days and regularly aggregates up to 226mm (8.9") of precipitation. Throughout the year, there are 123 rainfall days, and 2213mm (87.13") of precipitation is accumulated.

Sea temperature

June through September, with an average sea temperature of 27°C (80.6°F), are months with the coldest seawater.
Note: Water activities in temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are pleasurable, without feeling uncomfortable even during extended periods.

Daylight

In July, the average length of the day is 11h and 44min.
On the first day of July, sunrise is at 07:23 and sunset at 19:05. On the last day of the month, sunrise is at 07:22 and sunset at 19:10 +06.

Sunshine

The average sunshine in July is 7.3h.

UV index

June and July, with an average maximum UV index of 10, are months with the lowest UV index. A UV Index of 8 to 10 symbolizes a very high health hazard from exposure to the Sun's UV rays for average individuals.
Note: In July, a regular UV index of 10 translates into these guidelines:
Be vigilant. Without due care, eyes and skin can be harmed in no time. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Despite the cloudy weather, sunscreen with a sun protection factor of at least 30 should be liberally applied and reapplied, including after a swim or outdoor activity. Watch out! Reflections from sand and water can surge UV radiation exposure.

Updated: Jan 26, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest in Diego Garcia?

The months of March through November bring the lowest temperatures in Diego Garcia, averaging a high of 30°C (86°F).

How hot is it in Diego Garcia in July?

During July, Diego Garcia experiences an average high-temperature of 30°C (86°F) and a low-temperature of 26°C (78.8°F).

How many days does it rain in July in Diego Garcia?

In Diego Garcia, British Indian Ocean Territory, in July, it is raining for 14 days, with typically 226mm (8.9") of accumulated precipitation.

What months are the sea coldest in Diego Garcia?

The months with the coldest seawater in Diego Garcia, British Indian Ocean Territory, are June through September, with an average sea temperature of 27°C (80.6°F).

What is the water temperature in July in Diego Garcia?

In Diego Garcia, British Indian Ocean Territory, in July, the average water temperature is 27°C (80.6°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

What is the average length of the day in July in Diego Garcia?

In Diego Garcia, British Indian Ocean Territory, the average day length in July is 11h and 44min.

When is the sunrise / sunset in July in Diego Garcia?

In July, on the first day of the month, sunrise is at 07:23 and sunset at 19:05. On the last day of the month, sunrise is at 07:22 and sunset at 19:10 +06.

How long on average sun shines in July in Diego Garcia?

In July, the average sunshine duration in Diego Garcia, British Indian Ocean Territory, is 7.3h.

What is the month with the lowest UV index in Diego Garcia?

The months with the lowest UV index in Diego Garcia are June and July, with an average maximum UV index of 10.

What is the UV index reading in July in Diego Garcia?

In Diego Garcia, the average daily maximum UV index in July is 10. A UV Index reading of 8 to 10 represents a very high hazard to health from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J July A S O N D

Jun

July

Aug

Average high temperature

30°C 86°F

Average low temperature

Average rainfall

Average rainfall days

Average sea temperature

Average daylight

Average sunshine

Average UV index

Average temperature in July
Diego Garcia, British Indian Ocean Territory

Average high temperature in July: 30°C

The warmest months (with the highest average high temperature) are January, February and December (31°C).
The months with the lowest average high temperature are March, April, May, June, July, August, September, October and November (30°C).

Average low temperature in July: 26°C

The months with the highest average low temperature are January, March, April, May, August, September, October and December (27°C).
The coldest months (with the lowest average low temperature) are February, June, July and November (26°C).

Average rainfall in July
Diego Garcia, British Indian Ocean Territory

Average rainfall in July: 226mm

The wettest month (with the highest rainfall) is August (298mm).
The driest month (with the least rainfall) is February (18mm).

Average rainfall days in July
Diego Garcia, British Indian Ocean Territory

Average rainfall days in July: 14 days

The month with the highest number of rainy days is June (17 days).
The months with the least rainy days are February and March (1 days).

Average sea temperature in July
Diego Garcia, British Indian Ocean Territory

Average sea temperature in July: 27°C

The best months for swimming (with the highest average sea temperature) are March and April (29°C).
The coldest months (with the lowest average sea temperature) are June, July, August and September (27°C).

Average daylight in July /
Average sunshine in July
Diego Garcia, British Indian Ocean Territory

Average daylight in July: 11h and 4min

The month with the longest days is December (Average daylight: 12h and 30min).
The month with the shortest days is June (Average daylight: 11h and 42min).

Average sunshine in July: 7h and 2min

The month with the most sunshine is February (Average sunshine: 9h and 18min).
The months with the least sunshine are June and September (Average sunshine: 6h and 42min).

Average UV index in July
Diego Garcia, British Indian Ocean Territory

Average UV index in July: 10

The months with the highest UV index are January, February, March, April, August, September, October, November and December (UV index 12).
The months with the lowest UV index are June and July (UV index 10).

July weather forecast
Diego Garcia, British Indian Ocean Territory

Contents