Climate

Climate Types 

El Salvador has a Tropical wet and dry climate with two distinct seasons; its rainy season starts in May and ends in October while its dry season starts in November and ends in April (CIA World Factbook).  However, not only does El Salvador have two distinct seasons, but it also has two distinct regions: the tropical coastal region and the temperate uplands.

http://splashman.phoenix.wikispaces.net/Climate+Map+Latin+America

According to the map above, El Salvador's climate is the same (Tropical wet and dry climate) throughout the country and varies slightly throughout the rest of the region.    

Seasonality 

http://www.wunderground.com/blog/weatherhistorian/october-2011-global-weather-extremes-summary

According to travel information site, LonelyPlanet.com (http://www.lonelyplanet.com/el-salvador/weather), El Salvador's coastal areas have the hottest temperatures throughout the year(high of 32 C), temperatures in its central areas vary and temperatures in its mountainous regions are always relatively cold.  Referring to the map above, in 2011 much of El Salvador's central and southern-coastal regions had the most rainfall, while its northern region had slightly less rainfall.  The majority of El Salvador's rainfall occurs during its rainy season (May-October).


City 1: San Salvador, El Salvador

http://www.el-salvador.climatemps.com/ 

In San Salvador, temperatures ranged from a high of more than 30 C (85 degrees F) to lows of about 15 C (59 F) (An annual temperature range of 15 C).  San Salvador had the most amount of rain between the months of May and October when it had a high of 32 cm (12.5 in) of rain.  

City 2: San Miguel

Located near El Salvador's eastern coast, San Miguel has temperatures as high as 100 F to temperatures as low as 67 F (range of 33 F)  During its rainy months, San Miguel has about 5-6 rain days p/month (climate-zone.com) 

The annual temperatures and rainfall of San Salvador, El Salvador and Honolulu, HI are very similar.  Both El Savador and Hawaii belong to tropical regions and as a result have similar values in annual temperature and rainfall.  As of 2009, Honolulu had about 14 inches of rain (http://www.prh.noaa.gov/hnl/climate/PHNL_rainfall.php), while San Salvador has had about 13 inches of rain.  Honolulu's temperature high of 88 and low of 68 are very similar to San Salvador's temperatures of 85F and 59 F. 

Finally, El Savador experiences large seasonality.  During the dry months of November- April, El Salvador experiences virtually no rainfall.  However, between the months of May and October it rains nearly everyday, which equates to about a 15 inch difference in rainfall between its wet and dry seasons (is more in some other parts of the country).  The vast differences in precipitation between seasons results in El Salvador having large swings in seasonality.