October weather forecast
San Salvador, El Salvador

October presents the highest rainfall levels in the second half of the year for San Salvador. Daylight hours keep reducing, but an increasing number of sunshine days offer residents some respite. Despite the consistent UV index, lower visibility limits outdoor activities. The climatological highlight of October is a total of 207mm (8.15") of precipitation falling over 22.8 days, surpassing even September’s figures. Consequently, the city maintains its humid and tropically warm climate with an increase in cloud cover.

Temperature

October is the coldest month of the year, registering average temperatures as high as 29°C (84.2°F) and as low as 20.5°C (68.9°F).

Heat index

The heat index value for October is appraised at a very hot 35°C (95°F). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.
Take note of the fact that heat index values are based on shaded circumstances with light airflows. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an estimation of the warmth sensation when considering humidity levels. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

September and October, with an average relative humidity of 82%, are the most humid months.

Rainfall

In San Salvador, in October, during 22.8 rainfall days, 207mm (8.15") of precipitation is typically accumulated. In San Salvador, during the entire year, the rain falls for 187 days and collects up to 1106mm (43.54") of precipitation.

Daylight

The average length of the day in October in San Salvador is 11h and 49min.
On the first day of October, sunrise is at 05:46 and sunset at 17:46. On the last day of the month, sunrise is at 05:51 and sunset at 17:29 CST.

Sunshine

In October, the average sunshine in San Salvador is 8.5h.

UV index

The months with the lowest UV index in San Salvador, El Salvador, are January, May, June, August through December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index, 6 during October, leads to the following recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.