Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
October
Weather in October
Temperature
In San Alejo, the month of October registers the lowest temperatures, averaging 30.6°C (87.1°F) at the peak and 23°C (73.4°F) at the lowest.Heat index
In October, the average heat index is estimated at a blisteringly hot 40°C (104°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.Take note of the fact that heat index values are based on shaded circumstances with light airflows. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.
Humidity
October is the most humid month, with an average relative humidity of 80%.Rainfall
The month with the most rainfall is October, when the rain falls for 27.4 days and typically aggregates up to 192mm (7.56") of precipitation.Daylight
In San Alejo, the average length of the day in October is 11h and 50min.On the first day of October, sunrise is at 05:41 and sunset at 17:41. On the last day of the month, 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 are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: In October, the maximum UV index of 7 transforms into these recommendations:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest in San Alejo?
How hot does it get in October?
What is the most humid month?
What is the average humidity in October?
What is the rainiest month?
How many days does it rain in October?
What is the average length of the day in October?
When are sunrise and sunset in October?
How many hours of sunshine does San Alejo have in October?
What are the months with the highest UV index?
When is the lowest UV index?
How high is the UV index in October?
Average temperature in October
San Alejo, El Salvador
- Average high temperature in October: 30.6°C
The warmest month (with the highest average high temperature) is April (34.4°C).
The month with the lowest average high temperature is October (30.6°C).
- Average low temperature in October: 23°C
The month with the highest average low temperature is April (25.8°C).
The coldest months (with the lowest average low temperature) are January and December (21.8°C).
Average pressure in October
San Alejo, El Salvador
- Average pressure in October: 1011.2mbar
The month with the highest atmospheric pressure is January (1013.3mbar).
The month with the lowest atmospheric pressure is October (1011.2mbar).
Average wind speed in October
San Alejo, El Salvador
- Average wind speed in October: 5.8km/h
The windiest month (with the highest average wind speed) is January (9.8km/h).
The calmest month (with the lowest average wind speed) is September (5.6km/h).
Average humidity in October
San Alejo, El Salvador
- Average humidity in October: 80%
The month with the highest relative humidity is October (80%).
The month with the lowest relative humidity is March (56%).
Average rainfall in October
San Alejo, El Salvador
- Average rainfall in October: 192mm
The wettest month (with the highest rainfall) is October (192mm).
The driest month (with the least rainfall) is January (1mm).
Average rainfall days in October
San Alejo, El Salvador
- Average rainfall days in October: 27.4 days
The month with the highest number of rainy days is September (28.3 days).
The month with the least rainy days is January (1.8 days).
Average daylight in October /
Average sunshine in October
San Alejo, El Salvador
- Average daylight in October: 11h and 5min
The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 24min).
- Average sunshine in October: 8h and 4min
The month with the most sunshine is April (Average sunshine: 11h and 42min).
The months with the least sunshine are January and February (Average sunshine: 7h and 42min).
Average sunshine days in October
San Alejo, El Salvador
- Average sunshine days in October: 2.8 days
The month with the most sunshine days is January (28.6 days).
The month with the least sunshine days is September (0.6 days).
Average UV index in October
San Alejo, El Salvador
- Average UV index in October: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in October
San Alejo, El Salvador
- Average cloud cover in October: 37
The month with the most cloud cover is October (Cloud cover 37).
The month with the least cloud cover is January (Cloud cover 12).
Average visibility in October
San Alejo, El Salvador
- Average visibility in October: 9km
The months with the highest visibility are January, February, March, April, May, June, July, November and December (10km).
The months with the lowest visibility are August, September and October (9km).
