July weather forecast
Phnom Penh, Cambodia

July, like June, is a hot summer month in Phnom Penh, Cambodia, with temperature in the range of an average high of 32.5°C (90.5°F) and an average low of 24.7°C (76.5°F).

Temperature

In July, the average high-temperature is essentially the same as in June - a still tropical 32.5°C (90.5°F). In Phnom Penh, the average low-temperature is 24.7°C (76.5°F).

Heat index

The average heat index in July is estimated at a life-threatening hot 46.2°C (115.2°F). Be wary: Heat exhaustion and heat cramps are highly anticipated. With continued activity, heatstroke is very likely.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'real feel', 'apparent temperature', or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Additional factors like differences in body mass, height, and shape, metabolic differences, clothing, and activity influence one's weather impression. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 37.5°C (99.5°F) to 38.3°C (100.9°F), thermal conditions are potentially life-threatening.

Humidity

The average relative humidity in July is 80%.

Rainfall

In Phnom Penh, during 19.6 rainfall days, 195.9mm (7.71") of precipitation is typically accumulated. Throughout the year, in Phnom Penh, there are 153.4 rainfall days, and 1635.6mm (64.39") of precipitation is accumulated.

Daylight

The average length of the day in July is 12h and 44min.
On the first day of the month, sunrise is at 05:40 and sunset at 18:28. On the last day of July, sunrise is at 05:47 and sunset at 18:25 +07.

Sunshine

In Phnom Penh, the average sunshine in July is 4.6h.

UV index

February through October, with an average maximum UV index of 12, are months with the highest UV index in Phnom Penh, Cambodia. A UV Index of 11, and more, symbolizes an extreme threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: In July, the average maximum UV index of 12 translate into the following recommendations:
Practice all essential precautions. Protection against sun damage is crucial. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise.