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
The arrival of September denotes a barely perceptible change in the average high-temperatures to a tropical 30.5°C (86.9°F) from August's 29.5°C (85.1°F). In September, the average low-temperature records at an agreeable 22.7°C (72.9°F) during the nights.Heat index
Throughout September, the heat index is evaluated at a blistering 42°C (107.6°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.Heat index's context suggests values are appropriate for shady areas and slight breezes. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', binds temperature metrics with humidity values to give a sense of the actual warmth. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.
Humidity
In September, the average relative humidity is 87%.Rainfall
In San Juan de Manapiare, during September, the rain falls for 25.7 days and regularly aggregates up to 153mm (6.02") of precipitation. Throughout the year, there are 211.8 rainfall days, and 1441mm (56.73") of precipitation is accumulated.Daylight
In September, the average length of the day in San Juan de Manapiare is 12h and 9min.On the first day of September, sunrise is at 06:17 and sunset at 18:30. On the last day of the month, sunrise is at 06:11 and sunset at 18:16 -04.
Sunshine
In September, the average sunshine is 8.3h.UV index
In September, the average daily maximum UV index is 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum high UV index of 7 in September translates into the following recommendations:
Deflect overexposure. Sun protection is a necessity. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September in San Juan de Manapiare?
What is the average humidity in September?
How many days does it rain in September?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
San Juan de Manapiare, Venezuela
- Average high temperature in September: 30.5°C
The warmest month (with the highest average high temperature) is March (36.3°C).
The month with the lowest average high temperature is July (28.9°C).
- Average low temperature in September: 22.7°C
The months with the highest average low temperature are March and April (26.3°C).
The coldest month (with the lowest average low temperature) is July (22.1°C).
Average pressure in September
San Juan de Manapiare, Venezuela
- Average pressure in September: 1011.3mbar
The month with the highest atmospheric pressure is July (1012.9mbar).
The month with the lowest atmospheric pressure is November (1008.9mbar).
Average wind speed in September
San Juan de Manapiare, Venezuela
- Average wind speed in September: 5km/h
The windiest month (with the highest average wind speed) is February (14.3km/h).
The calmest month (with the lowest average wind speed) is September (5km/h).
Average humidity in September
San Juan de Manapiare, Venezuela
- Average humidity in September: 87%
The month with the highest relative humidity is July (90%).
The month with the lowest relative humidity is March (48%).
Average rainfall in September
San Juan de Manapiare, Venezuela
- Average rainfall in September: 153mm
The wettest month (with the highest rainfall) is July (263mm).
The driest month (with the least rainfall) is February (2mm).
Average rainfall days in September
San Juan de Manapiare, Venezuela
- Average rainfall days in September: 25.7 days
The month with the highest number of rainy days is July (28.3 days).
The month with the least rainy days is February (1.7 days).
Average daylight in September /
Average sunshine in September
San Juan de Manapiare, Venezuela
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 12h and 24min).
The month with the shortest days is December (Average daylight: 11h and 48min).
- Average sunshine in September: 8h and 2min
The months with the most sunshine are January and February (Average sunshine: 9h and 30min).
The month with the least sunshine is July (Average sunshine: 6h and 18min).
Average sunshine days in September
San Juan de Manapiare, Venezuela
- Average sunshine days in September: 2.6 days
The month with the most sunshine days is January (27.6 days).
The month with the least sunshine days is July (2 days).
Average UV index in September
San Juan de Manapiare, Venezuela
- Average UV index in September: 7
The months with the highest UV index are February and March (UV index 8).
The months with the lowest UV index are May, June, July and August (UV index 6).
Average cloud cover in September
San Juan de Manapiare, Venezuela
- Average cloud cover in September: 44
The month with the most cloud cover is July (Cloud cover 60).
The month with the least cloud cover is January (Cloud cover 22).
Average visibility in September
San Juan de Manapiare, Venezuela
- Average visibility in September: 7km
The months with the highest visibility are January, February, March, April and December (10km).
The month with the lowest visibility is July (6km).
