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Climate in San Salvador
(El Salvador)

Average daytime and nighttime temperatures


All climate diagrams on this page come from the collected data of the official weather station in San Salvador in a height of 700m above sea level. All data correspond to the average monthly values of the last 20 years.


Back to overview: El Salvador

San Salvador is one of the coldest regions in El Salvador with an average daily high temperature of only 30 degrees. The climate is very warm with an annual average of 30 degrees, but has few truly tropical and muggy months. It is warm or hot yearlong. Due to less rain, the best time for traveling is from November to April. The most rain days occur from from May to October.
Overview: Climate in El Salvador
Daylengths and sun positions in El Salvador
Compare climate with other regions or countries
Sunshine hours per day
The number of hours of sunshine refers to the time when the sun is actually visible. That is, without any obstruction of visibility by clouds, fog or mountains. With 10 hours per day, February is the sunniest month in the region of San Salvador. In June, the sun shines the least.
Rain days per month
A rain day is a day on which at least 0.1 mm precipitation (=0.1 liter) per square meter falls. This can be rain, snow, hail or even dew. So it does not have to rain the whole day. With 19 rain days, August offers the most rain days, while December has the fewest.
Relative humidity in %
Warm air can absorb more moisture than cold air. The relative humidity indicates how much moisture can be physically contained in the air. At high humidity, a person feels uncomfortable and perceives this as oppressive. In general, a relative humidity of 40-60% feels pleasant. With humidity averaging 84%, September is the most uncomfortable. In February, on the other hand, it is easier to endure.
Absolute humidity in g/m³
In warm months, there is also a higher absolute humidity almost everywhere. At a temperature of 25°C, air can absorb up to 23 grams of water per cubic meter. At 20°C, it is only 17.3 grams. A relative humidity of 40% at 25°C thus corresponds to an absolute humidity of 9.2 grams of water. From a proportion of approx. 13.5 grams, humans perceive the air as muggy. This limit is exceeded throughout the year in San Salvador.
Humidex
The "Humidex" (humidity index) is an index of well-being in warmer areas, calculated from the air temperature, relative humidity and dew point. The index corresponds approximately to the temperature felt. At high temperatures, the body transports heat away by sweating. At high humidity, the ambient air can only absorb a small amount of sweat and thus one feels uncomfortable. An index of 20-29 is considered comfortable. Up to 39, people perceive the air as slightly uncomfortable, and above 40, as very uncomfortable. Values above 45 are dangerous in the long run and often lead to heat stroke.
Climate charts for other regions in El Salvador

Map of San Salvador

Most important cities in the region »San Salvador«

As the capital region, it is arguably the most important part of El Salvador. Alone 6 cities with over 100,000 inhabitants are located here.

CityPopulationGeo position
Soyapango284,34713° 42' 37"N89° 8' 24"W
Apopa202,87113° 48' 26"N89° 10' 45"W
San Salvador200,31913° 41' 22"N89° 11' 14"W
Ilopango145,31513° 42' 6"N89° 6' 34"W
Mejicanos139,94513° 44' 25"N89° 12' 47"W
Delgado126,29713° 43' 27"N89° 10' 13"W
Cuscatancingo88,23813° 44' 10"N89° 10' 53"W
San Marcos54,61513° 39' 32"N89° 10' 59"W
Ayutuxtepeque25,42613° 44' 44"N89° 12' 23"W
Aguilares21,44513° 57' 26"N89° 11' 23"W
Santo Tomás14,58113° 38' 27"N89° 7' 60"W
Guazapa10,99513° 52' 37"N89° 10' 23"W
Panchimalco6,76413° 36' 46"N89° 10' 48"W
Tonacatepeque6,24513° 46' 52"N89° 7' 7"W
Rosario de Mora5,17813° 34' 31"N89° 12' 32"W
El Paisnal1,64113° 58' 25"N89° 13' 7"W


Data basis: German Weather Service, individual values averaged and supplemented by own elements. Data on cities and inhabitants: geonames.org, United Nations Statistics Division and own research.
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