Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
In San Juan Talpa, the lowest average temperatures are observed in September, with a high of 30.1°C (86.2°F) and a low of 22.8°C (73°F).Heat index
September's average heat index is calculated to be a torrid 38°C (100.4°F). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.Note that heat index values are valued for light wind and location in the shade. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. 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 are particularly meaningful for babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. As body temperatures escalate without effective heat release, one might face dehydration threats.
Humidity
September and October, with an average relative humidity of 81%, are the most humid months in San Juan Talpa.Rainfall
In San Juan Talpa, in September, it is raining for 27.8 days, with typically 156mm (6.14") of accumulated precipitation. In San Juan Talpa, El Salvador, during the entire year, the rain falls for 200.6 days and collects up to 971mm (38.23") of precipitation.Daylight
The average length of the day in September is 12h and 12min.On the first day of the month, sunrise is at 05:44 and sunset at 18:07. On the last day of September, sunrise is at 05:45 and sunset at 17:46 CST.
Sunshine
The average sunshine in September is 9.1h.UV index
With an average maximum UV index of 6, September is the month with the lowest UV index in San Juan Talpa. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.Note: A maximum UV index of 6 in September translates into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month in San Juan Talpa?
How hot is it in San Juan Talpa in September?
What is the most humid month in San Juan Talpa?
What is the average humidity in September in San Juan Talpa?
How many days does it rain in September in San Juan Talpa?
How many hours of daylight does San Juan Talpa have in September?
When is the sunrise / sunset in September in San Juan Talpa?
How many hours of sunshine does San Juan Talpa have in September?
When is the lowest UV index in San Juan Talpa?
What is the UV index intensity in September in San Juan Talpa?
Average temperature in September
San Juan Talpa, El Salvador
- Average high temperature in September: 30.1°C
The warmest month (with the highest average high temperature) is March (32.5°C).
The month with the lowest average high temperature is September (30.1°C).
- Average low temperature in September: 22.8°C
The month with the highest average low temperature is May (24.5°C).
The coldest months (with the lowest average low temperature) are January and December (21.6°C).
Average pressure in September
San Juan Talpa, El Salvador
- Average pressure in September: 1011.2mbar
The month with the highest atmospheric pressure is January (1013mbar).
The month with the lowest atmospheric pressure is October (1010.9mbar).
Average wind speed in September
San Juan Talpa, El Salvador
- Average wind speed in September: 6.6km/h
The windiest month (with the highest average wind speed) is January (9.9km/h).
The calmest month (with the lowest average wind speed) is June (6.5km/h).
Average humidity in September
San Juan Talpa, El Salvador
- Average humidity in September: 81%
The months with the highest relative humidity are September and October (81%).
The month with the lowest relative humidity is March (62%).
Average rainfall in September
San Juan Talpa, El Salvador
- Average rainfall in September: 156mm
The wettest month (with the highest rainfall) is October (185mm).
The driest month (with the least rainfall) is January (2mm).
Average rainfall days in September
San Juan Talpa, El Salvador
- Average rainfall days in September: 27.8 days
The month with the highest number of rainy days is September (27.8 days).
The month with the least rainy days is January (2.3 days).
Average daylight in September /
Average sunshine in September
San Juan Talpa, El Salvador
- Average daylight in September: 12h and 1min
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 18min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is April (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 7h and 36min).
Average sunshine days in September
San Juan Talpa, El Salvador
- Average sunshine days in September: 1.5 days
The month with the most sunshine days is January (27.7 days).
The month with the least sunshine days is September (1.5 days).
Average UV index in September
San Juan Talpa, El Salvador
- Average UV index in September: 6
The months with the highest UV index are January, February, March, April, May, June, July, August, October, November and December (UV index 7).
The month with the lowest UV index is September (UV index 6).
Average cloud cover in September
San Juan Talpa, El Salvador
- Average cloud cover in September: 40
The month with the most cloud cover is September (Cloud cover 40).
The month with the least cloud cover is January (Cloud cover 14).
Average visibility in September
San Juan Talpa, El Salvador
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, November and December (10km).
The months with the lowest visibility are July, August, September and October (9km).
