September weather forecast
San Carlos, Venezuela

September

Weather in September

In San Carlos, September marks the beginning of the transition from the peak rainy season to slightly drier months. Precipitation reduces a bit, tallying 65mm (2.56") over 18.5 days, a noticeable drop from August’s 100mm (3.94"). Despite the decrease in rainfall, the city continues to flourish under high relative humidity. As tourists marvel at San Carlos’ prowess at maneuvering through weather extremes, another climatic shift awaits them in October. With the onset of the drier months, the city landscapes transform beautifully.

Temperature

With the onset of September, the average high-temperature registers at a tropical 30.2°C (86.4°F), subtly different from August's 29.5°C (85.1°F). San Carlos temperatures generally rest at a low of 19.5°C (67.1°F) during the September nights.

Heat index

In September, the average heat index is calculated to be a very hot 37°C (98.6°F). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.
One should consider that heat index numbers are for shaded settings and light wind. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. 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 hold particular significance for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

In September, the average relative humidity in San Carlos is 77%.

Rainfall

In September, in San Carlos, the rain falls for 18.5 days. Throughout September, 65mm (2.56") of precipitation is accumulated. In San Carlos, during the entire year, the rain falls for 214.9 days and collects up to 900mm (35.43") of precipitation.

Daylight

In San Carlos, the average length of the day in September is 12h and 10min.
On the first day of the month, sunrise is at 06:25 and sunset at 18:43. On the last day of September, in San Carlos, Venezuela, sunrise is at 06:22 and sunset at 18:25 -04.

Sunshine

In September, the average sunshine is 8.8h.

UV index

The months with the lowest UV index are May through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: An average UV index of 6 in September transforms into this advice:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. 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. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.

Frequently asked questions

How hot is September?
The high-temperature during September is 30.2°C (86.4°F) and the low-temperature is 19.5°C (67.1°F). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is calculated to be 37°C (98.6°F).
What is the average humidity in September?
In September, the average relative humidity is 77%.
How much does it rain in September?
In San Carlos, during September, the rain falls for 18.5 days and regularly aggregates up to 65mm (2.56") of precipitation.
How many hours of daylight does San Carlos have in September?
In San Carlos, the average day length in September is 12h and 10min.
What time are sunrise and sunset in September?
In September, on the first day of the month, sunrise is at 06:25 and sunset at 18:43. On the last day of the month, sunrise is at 06:22 and sunset at 18:25 -04.
How long on average sun shines in September?
In September, the average sunshine duration is 8.8h.
When is the lowest UV index?
The months with the lowest UV index are May through December, with an average maximum UV index of 6.
How high is the UV index in September?
In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in September
San Carlos, Venezuela
  • Average high temperature in September: 30.2°C

The warmest month (with the highest average high temperature) is March (33.3°C).
The month with the lowest average high temperature is June (28.3°C).

  • Average low temperature in September: 19.5°C

The month with the highest average low temperature is April (22.5°C).
The coldest month (with the lowest average low temperature) is August (19.3°C).

Average pressure in September
San Carlos, Venezuela
  • Average pressure in September: 1011.7mbar

The month with the highest atmospheric pressure is July (1013.2mbar).
The month with the lowest atmospheric pressure is November (1010.3mbar).

Average wind speed in September
San Carlos, Venezuela
  • Average wind speed in September: 4.8km/h

The windiest month (with the highest average wind speed) is February (7km/h).
The calmest months (with the lowest average wind speed) are June and July (4.4km/h).

Average humidity in September
San Carlos, Venezuela
  • Average humidity in September: 77%

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is March (57%).

Average rainfall in September
San Carlos, Venezuela
  • Average rainfall in September: 65mm

The wettest month (with the highest rainfall) is July (127mm).
The driest month (with the least rainfall) is February (7mm).

Average rainfall days in September
San Carlos, Venezuela
  • Average rainfall days in September: 18.5 days

The month with the highest number of rainy days is July (24.6 days).
The month with the least rainy days is February (5.5 days).

Average daylight in September /
Average sunshine in September
San Carlos, Venezuela
  • Average daylight in September: 12h and 1min

The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 36min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is February (Average sunshine: 9h and 36min).
The months with the least sunshine are June and July (Average sunshine: 7h and 0min).

Average sunshine days in September
San Carlos, Venezuela
  • Average sunshine days in September: 9.1 days

The month with the most sunshine days is February (20.1 days).
The month with the least sunshine days is July (4.5 days).

Average UV index in September
San Carlos, Venezuela
  • Average UV index in September: 6

The months with the highest UV index are January, February, March and April (UV index 7).
The months with the lowest UV index are May, June, July, August, September, October, November and December (UV index 6).

Average cloud cover in September
San Carlos, Venezuela
  • Average cloud cover in September: 36

The month with the most cloud cover is July (Cloud cover 51).
The month with the least cloud cover is February (Cloud cover 21).

Average visibility in September
San Carlos, Venezuela
  • Average visibility in September: 8km

The months with the highest visibility are January, February, March and December (10km).
The months with the lowest visibility are July, August and September (8km).

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