September weather forecastSan Luis, Venezuela
September
Weather in September
The first month of the autumn, September, is also a hot month in San Luis, Venezuela, with an average temperature fluctuating between 32.1°C (89.8°F) and 25.8°C (78.4°F).Temperature
September, marked by an average high-temperature of 32.1°C (89.8°F) and a low-temperature of 25.8°C (78.4°F), is the warmest month.Heat index
In September, the average heat index is estimated at a blistering 42°C (107.6°F). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.In terms of the heat index, values are set with light wind and shade conditions in mind. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are essentially critical for children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.
Humidity
The months with the lowest humidity are August and September, with an average relative humidity of 73%.Rainfall
In San Luis, during September, the rain falls for 13.3 days and regularly aggregates up to 47mm (1.85") of precipitation. Throughout the year, there are 162.4 rainfall days, and 339mm (13.35") of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 11min.On the first day of the month, sunrise is at 06:28 and sunset at 18:48. On the last day of September, sunrise is at 06:27 and sunset at 18:29 -04.
Sunshine
In September, the average sunshine is 9.6h.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 7 in September interprets into the following recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
San Luis, Venezuela
- Average high temperature in September: 32.1°C
The warmest month (with the highest average high temperature) is September (32.1°C).
The month with the lowest average high temperature is February (28.9°C).
- Average low temperature in September: 25.8°C
The month with the highest average low temperature is September (25.8°C).
The coldest month (with the lowest average low temperature) is February (23.6°C).
Average pressure in September
San Luis, Venezuela
- Average pressure in September: 1010.4mbar
The month with the highest atmospheric pressure is January (1012.6mbar).
The months with the lowest atmospheric pressure are October and November (1010mbar).
Average wind speed in September
San Luis, Venezuela
- Average wind speed in September: 16.9km/h
The windiest month (with the highest average wind speed) is June (22.5km/h).
The calmest month (with the lowest average wind speed) is October (15.4km/h).
Average humidity in September
San Luis, Venezuela
- Average humidity in September: 73%
The month with the highest relative humidity is November (78%).
The months with the lowest relative humidity are August and September (73%).
Average rainfall in September
San Luis, Venezuela
- Average rainfall in September: 47mm
The wettest month (with the highest rainfall) is October (68mm).
The driest month (with the least rainfall) is February (8mm).
Average rainfall days in September
San Luis, Venezuela
- Average rainfall days in September: 13.3 days
The month with the highest number of rainy days is November (21.1 days).
The month with the least rainy days is February (8.1 days).
Average daylight in September /
Average sunshine in September
San Luis, Venezuela
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 48min).
The month with the shortest days is December (Average daylight: 11h and 30min).
- Average sunshine in September: 9h and 36min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is March (Average sunshine: 9h and 0min).
Average sunshine days in September
San Luis, Venezuela
- Average sunshine days in September: 14.3 days
The month with the most sunshine days is August (16.8 days).
The month with the least sunshine days is November (4.7 days).
Average UV index in September
San Luis, Venezuela
- Average UV index in September: 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 September
San Luis, Venezuela
- Average cloud cover in September: 22
The months with the most cloud cover are March and April (Cloud cover 36).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in September
San Luis, Venezuela
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
