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

San Salvador's October weather reaches an average high of 29°C (84.2°F) and an average low of 20.5°C (68.9°F), making it the coldest month.

Heat index

The heat index in October is calculated to be a torrid 35°C (95°F). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
Bear in mind that the heat index values are determined for shaded areas and light breezes. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'apparent temperature', comes about by integrating the temperature readings with the humidity levels. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. Rising body temperatures due to excess heat retention could signify impending heat disorders.

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

Sunshine

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

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 value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum daily UV index of 6 in October interprets into the following recommendations:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Stay sun-safe with clothing that is both closely woven and worn loosely.