October weather forecast
La Union, El Salvador

October in La Union marks the transition from wet to dry weather, with rainfall reaching its yearly peak at 192mm (7.56"). Despite this, the weather feels tranquil, a testament to the city's resilience. Sea and air temperatures maintain their soothing pattern, allowing residents to adjust to the changing climate. Sunshine hours begin to decrease, leaving behind a cooler, more relaxed environment. Pressure rests at a stable level, maintaining a consistent flow of mild weather.

Temperature

October, characterized by an average high temperature of 30.6°C (87.1°F) and a low temperature of 23°C (73.4°F), is generally the coldest month in La Union.

Heat index

The heat index in October is evaluated at a blisteringly hot 40°C (104°F). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', arises from combining readings of air temperature and relative moisture content. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.

Humidity

With an average relative humidity of 80%, October is the most humid month in La Union.

Rainfall

October is the month with the most rainfall. Rain falls for 27.4 days and accumulates 192mm (7.56") of precipitation.

Sea temperature

In La Union, the average seawater temperature in October is 28.8°C (83.8°F).
Note: Water activities including swimming and diving are pleasurable in temperatures between 25°C (77°F) and 29°C (84.2°F), ensuring comfort and enjoyment for extended time frames.

Daylight

In La Union, the average length of the day in October is 11h and 50min.
On the first day of the month, sunrise is at 05:40 and sunset at 17:40. On the last day of October, in La Union, sunrise is at 05:45 and sunset at 17:24 CST.

Sunshine

The average sunshine in October is 8.7h.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 7. The months with the lowest UV index in La Union are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 7 in October interprets into the following recommendations:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Be cautious! Sand and water surfaces make the Sun's UV rays more potent.