August weather forecast and climate
San Salvador, El Salvador

The sunlit San Salvador city in El Salvador set on the beautiful slopes of the mountain
The sunlit San Salvador city in El Salvador set on the beautiful slopes of the mountain
August, the last month of the summer, in San Salvador, is another tropical month, with average temperature varying between 30.8°C (87.4°F) and 21.6°C (70.9°F).

Temperature

In San Salvador, the average high-temperature in August is essentially the same as in July - a still tropical 30.8°C (87.4°F). The average low-temperature, in San Salvador, is 21.6°C (70.9°F).

Heat index

The average heat index in August is evaluated at a sweltering 39.9°C (103.8°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'apparent temperature', 'felt air temperature', or 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. This effect is individual, with diverse people perceiving weather differently for numerous reasons (pregnancy, wind, differences in body mass, height, and shape), and activity. 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. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The average relative humidity in August is 79%.

Rainfall

In August, the rain falls for 24.2 days. Throughout August, 159mm (6.26") of precipitation is accumulated. In San Salvador, during the entire year, the rain falls for 187 days and collects up to 1106mm (43.54") of precipitation.

Daylight

In August, the average length of the day in San Salvador is 12.6h.

Sunshine

In San Salvador, El Salvador, the average sunshine is 11h.

UV index

January, May, June, August through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to the UV radiation for the average person.
Note: The daily maximum UV index of 6 in August interpret into the following advice:
Take precautions against overexposure. Protection against sun damage is needed. 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in August in San Salvador?

The average high-temperature, in August, in San Salvador, is 30.8°C (87.4°F), while the average low-temperature is 21.6°C (70.9°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), that takes the relative humidity and factores it into the air temperature reading, in August is evaluated at 39.9°C (103.8°F).

What is the average humidity in August in San Salvador?

The average relative humidity in August in San Salvador, El Salvador, is 79%.

How many days does it rain in August in San Salvador?

In San Salvador, in August, it is raining for 24.2 days, with typically 159mm (6.26") of accumulated precipitation.

How many hours of daylight does San Salvador have in August?

The average length of the day in August in San Salvador, El Salvador, is 12.6h.

How long on average sun shines in August in San Salvador?

The average sunshine in August is 11h.

When is the lowest UV index in San Salvador?

Months with the lowest UV index are January, May, June, August through December, with an average maximum UV index of 6.

What is the UV index intensity in August in San Salvador?

In San Salvador, El Salvador, the average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high hazard to health from the exposure to the Sun's UV radiation.
Average temperature in August - San Salvador, El Salvador
  • Average high temperature in August: 30.8°C

The warmest month (with the highest average high temperature) is March (32.6°C).
The month with the lowest average high temperature is October (29°C).

  • Average low temperature in August: 21.6°C

The month with the highest average low temperature is April (22.8°C).
The coldest month (with the lowest average low temperature) is January (19.4°C).

Average pressure in August - San Salvador, El Salvador
  • Average pressure in August: 1011.8mbar

The month with the highest atmospheric pressure is January (1013.5mbar).
Months with the lowest atmospheric pressure are May and October (1011.3mbar).

Average wind speed in August - San Salvador, El Salvador
  • Average wind speed in August: 5.1km/h

The windiest month (with the highest average wind speed) is January (8.5km/h).
The calmest month (with the lowest average wind speed) is June (4.8km/h).

Average humidity in August - San Salvador, El Salvador
  • Average humidity in August: 79%

Months with the highest relative humidity are September and October (82%).
The month with the lowest relative humidity is March (62%).

Average rainfall in August - San Salvador, El Salvador
  • Average rainfall in August: 159mm

The wettest month (with the highest rainfall) is May (234mm).
The driest month (with the least rainfall) is January (1mm).

Average rainfall days in August - San Salvador, El Salvador
  • Average rainfall days in August: 24.2 days

The month with the highest number of rainy days is September (26.3 days).
The month with the least rainy days is January (1.9 days).

Average daylight in August / Average sunshine in August - San Salvador, El Salvador
  • Average daylight in August: 12.6h

The month with the longest days is June (Average daylight: 12.9h).
The month with the shortest days is December (Average daylight: 11.3h).

  • Average sunshine in August: 11h

The month with the most sunshine is April (Average sunshine: 11.4h).
Months with the least sunshine are January and December (Average sunshine: 7.7).

Average sunshine days in August - San Salvador, El Salvador
  • Average sunshine days in August: 5.4 days

The month with the most sunshine days is January (28.7 days).
The month with the least sunshine days is September (3.2 days).

Average UV index in August - San Salvador, El Salvador
  • Average UV index in August: 6

Months with the highest UV index are February, March, April and July (UV index 7).
Months with the lowest UV index are January, May, June, August, September, October, November and December (UV index 6).

Average cloud cover in August - San Salvador, El Salvador
  • Average cloud cover in August: 34

Months with the most cloud cover are June, September and October (Cloud cover 38).
The month with the least cloud cover is January (Cloud cover 13).

Average visibility in August - San Salvador, El Salvador
  • Average visibility in August: 9km

Months with the highest visibility are January, February, March, April, November and December (10km).
Months with the lowest visibility are September and October (8km).