August weather forecast
San Miguel de Mercedes, El Salvador

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Weather in August

August, the last month of the summer in San Miguel de Mercedes, is another hot month, with an average temperature varying between 31.8°C (89.2°F) and 20.8°C (69.4°F).

Temperature

San Miguel de Mercedes notes an average high-temperature of a still hot 31.8°C (89.2°F) in August, hardly diverging from July. August nights experience a consistent temperature drop to a pleasant 20.8°C (69.4°F).

Heat index

For most parts of August, the heat index is appraised at a scorching 43°C (109.4°F). Be on the lookout: Heat cramps and heat exhaustion are anticipated. Continued exertion can result in heatstroke.
Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', gives a temperature feeling by integrating air temperature and humidity. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
Evaporating sweat, an outcome of perspiration, is key in assisting the human body to moderate its temperature. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. As body temperatures escalate without effective heat release, one might face dehydration threats.

Humidity

In San Miguel de Mercedes, El Salvador, the average relative humidity in August is 79%.

Rainfall

In San Miguel de Mercedes, during August, the rain falls for 26.6 days and regularly aggregates up to 144mm (5.67") of precipitation. In San Miguel de Mercedes, during the entire year, the rain falls for 192.2 days and collects up to 1062mm (41.81") of precipitation.

Daylight

The average length of the day in August is 12h and 35min.
On the first day of the month, sunrise is at 05:40 and sunset at 18:24. On the last day of August, in San Miguel de Mercedes, sunrise is at 05:44 and sunset at 18:07 CST.

Sunshine

In August, the average sunshine in San Miguel de Mercedes is 10.6h.

UV index

January, June through December, with an average maximum UV index of 6, are months with the lowest UV index in San Miguel de Mercedes. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: A daily maximum UV index of 6 in August translates into the following instructions:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
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Frequently asked questions

How hot does it get in San Miguel de Mercedes in August?

The high-temperature, in August, in San Miguel de Mercedes, records 31.8°C (89.2°F), while the low-temperature is 20.8°C (69.4°F). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is appraised at 43°C (109.4°F).

What is the average humidity in August in San Miguel de Mercedes?

In San Miguel de Mercedes, El Salvador, the average relative humidity in August is 79%.

How much does it rain in San Miguel de Mercedes in August?

In San Miguel de Mercedes, El Salvador, in August, during 26.6 rainfall days, 144mm (5.67") of precipitation is typically accumulated.

How many hours of daylight does San Miguel de Mercedes have in August?

In August, the average day length in San Miguel de Mercedes, El Salvador, is 12h and 35min.

When are sunrise and sunset in August in San Miguel de Mercedes?

In August, on the first day of the month, sunrise is at 05:40 and sunset at 18:24. On the last day of the month, in San Miguel de Mercedes, sunrise is at 05:44 and sunset at 18:07 CST.

How long on average sun shines in August in San Miguel de Mercedes?

In August, the average sunshine duration in San Miguel de Mercedes is 10.6h.

What are the months with the lowest UV index in San Miguel de Mercedes?

The months with the lowest UV index in San Miguel de Mercedes, El Salvador, are January, June through December, with an average maximum UV index of 6.

What is the UV index reading in August in San Miguel de Mercedes?

The average daily maximum UV index in August in San Miguel de Mercedes, El Salvador, is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
San Miguel de Mercedes, El Salvador

Average temperature in August - San Miguel de Mercedes, El Salvador
  • Average high temperature in August: 31.8°C

The warmest month (with the highest average high temperature) is March (34.1°C).
The month with the lowest average high temperature is October (29.6°C).

  • Average low temperature in August: 20.8°C

The month with the highest average low temperature is April (22.3°C).
The coldest month (with the lowest average low temperature) is December (18.6°C).

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Average pressure in August
San Miguel de Mercedes, El Salvador

Average pressure in August - San Miguel de Mercedes, El Salvador
  • Average pressure in August: 1011.9mbar

The month with the highest atmospheric pressure is January (1013.7mbar).
The months with the lowest atmospheric pressure are May and October (1011.4mbar).

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Average wind speed in August
San Miguel de Mercedes, El Salvador

Average wind speed in August - San Miguel de Mercedes, El Salvador
  • Average wind speed in August: 4.4km/h

The windiest month (with the highest average wind speed) is January (7.5km/h).
The calmest month (with the lowest average wind speed) is June (4.2km/h).

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Average humidity in August
San Miguel de Mercedes, El Salvador

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

The month with the highest relative humidity is October (83%).
The month with the lowest relative humidity is March (59%).

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Average rainfall in August
San Miguel de Mercedes, El Salvador

Average rainfall in August - San Miguel de Mercedes, El Salvador
  • Average rainfall in August: 144mm

The wettest month (with the highest rainfall) is May (242mm).
The driest month (with the least rainfall) is January (1mm).

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Average rainfall days in August
San Miguel de Mercedes, El Salvador

Average rainfall days in August - San Miguel de Mercedes, El Salvador
  • Average rainfall days in August: 26.6 days

The month with the highest number of rainy days is September (27.5 days).
The month with the least rainy days is January (1.5 days).

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Average daylight in August /
Average sunshine in August
San Miguel de Mercedes, El Salvador

Average daylight in August / Average sunshine in August - San Miguel de Mercedes, 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: 10h and 4min

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).

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Average sunshine days in August
San Miguel de Mercedes, El Salvador

Average sunshine days in August - San Miguel de Mercedes, El Salvador
  • Average sunshine days in August: 3.5 days

The month with the most sunshine days is January (29 days).
The month with the least sunshine days is September (1.3 days).

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Average UV index in August
San Miguel de Mercedes, El Salvador

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

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

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Average cloud cover in August
San Miguel de Mercedes, El Salvador

Average cloud cover in August - San Miguel de Mercedes, El Salvador
  • Average cloud cover in August: 38

The month with the most cloud cover is September (Cloud cover 44).
The months with the least cloud cover are January and December (Cloud cover 14).

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Average visibility in August
San Miguel de Mercedes, El Salvador

Average visibility in August - San Miguel de Mercedes, El Salvador
  • Average visibility in August: 8km

The months with the highest visibility are January, February, March, April and December (10km).
The month with the lowest visibility is September (7km).

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San Miguel de Mercedes, El Salvador

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