August weather forecast
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

Weather in August

August replicates the weather pattern from July in San Salvador. Medium-range temperatures combine with reduced sunshine hours to define the city's weather. Meanwhile, consistent humidity levels contribute to a pleasantly warm atmosphere. August sees a slight rise in rainfall with 159mm (6.26") across 24.2 days of the month. Overall, the month offers a consistent tropical climate interspersed with few clear days.

Temperature

August records an average high-temperature of a still hot 30.8°C (87.4°F), indicating a minor variation from the preceding month. In San Salvador, August is marked by an average low-temperature of 21.6°C (70.9°F).

Heat index

The heat index value during August is calculated to be an extremely hot 40°C (104°F). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.
Heat index's context suggests values are appropriate for shady areas and slight breezes. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

In San Salvador, the average relative humidity in August is 79%.

Rainfall

In San Salvador, in August, it is raining for 24.2 days, with typically 159mm (6.26") of accumulated precipitation. Throughout the year, there are 187 rainfall days, and 1106mm (43.54") of precipitation is accumulated.

Daylight

In San Salvador, the average length of the day in August is 12h and 34min.
On the first day of August, sunrise is at 05:41 and sunset at 18:24. On the last day of the month, sunrise is at 05:45 and sunset at 18:08 CST.

Sunshine

In San Salvador, the average sunshine in August 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 exposure to the Sun's UV rays for the ordinary person.
Note: A maximum UV index of 6 in August translates into the following recommendations:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.

Frequently asked questions

Is it hot in San Salvador during August?
In San Salvador, 30.8°C (87.4°F) is the average high-temperature and 21.6°C (70.9°F) is the average low-temperature during August. The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in August is calculated to be 40°C (104°F).
What is the average humidity in August?
In San Salvador, the average relative humidity in August is 79%.
How many days does it rain in August?
In San Salvador, in August, during 24.2 rainfall days, 159mm (6.26") of precipitation is typically accumulated.
How many hours of daylight does San Salvador have in August?
The average day length in August is 12h and 34min.
When are sunrise and sunset in August?
In August, on the first day of the month, sunrise is at 05:41 and sunset at 18:24. On the last day of the month, sunrise is at 05:45 and sunset at 18:08 CST.
How long on average sun shines in August?
The average sunshine duration in August is 11h.
What is the month with the lowest UV index?
January, May, June, August through December, with an average maximum UV index of 6, are months with the lowest UV index.
What is the UV index intensity in August?
In San Salvador, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in August - San Salvador, El Salvador
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
San Salvador, El Salvador
  • Average pressure in August: 1011.8mbar

The month with the highest atmospheric pressure is January (1013.5mbar).
The 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
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
San Salvador, El Salvador
  • Average humidity in August: 79%

The 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
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
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 /
Average sunshine in August
San Salvador, El Salvador
  • Average daylight in August: 12h and 4min

The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 18min).

  • Average sunshine in August: 11h and 0min

The month with the most sunshine is April (Average sunshine: 11h and 24min).
The months with the least sunshine are January and December (Average sunshine: 7h and 42min).

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

The months with the highest UV index are February, March, April and July (UV index 7).
The 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
San Salvador, El Salvador
  • Average cloud cover in August: 34

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

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

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