September weather forecast
Carbet Mitan, French Guiana

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Weather in September

The first month of the autumn, September, is still a tropical month in Carbet Mitan, French Guiana, with an average temperature varying between 33.7°C (92.7°F) and 21.8°C (71.2°F).

Temperature

The onset of September brings an average high-temperature of a still tropical 33.7°C (92.7°F), nearly matching the August temperature. Carbet Mitan experiences a nighttime temperature average of 21.8°C (71.2°F) during September.

Heat index

Throughout September, the heat index is calculated to be a burning hot 49°C (120.2°F). Watchful: Heat cramps and heat exhaustion are predicted. Continued exertion could lead to heatstroke.
Note that heat index values are valued for light wind and location in the shade. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is the outcome of merging air's temperature and its humidity metrics. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

The average relative humidity in September is 76%.

Rainfall

The month with the least rainfall is September, when the rain falls for 12.5 days and typically collects 21mm (0.83") of precipitation.

Daylight

In Carbet Mitan, the average length of the day in September is 12h and 8min.
On the first day of the month, sunrise is at 06:25 and sunset at 18:36. On the last day of September, in Carbet Mitan, sunrise is at 06:18 and sunset at 18:23 -03.

Sunshine

The month with the most sunshine is September, with an average of 8.8h of sunshine.

UV index

August through October, with an average maximum UV index of 7, are months with the highest UV index in Carbet Mitan. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The daily high UV index of 7 during September translates into the following recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Updated: Jan 31, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

How hot does it get in Carbet Mitan in September?

The high-temperature, in September, in Carbet Mitan, is 33.7°C (92.7°F), while the low-temperature averages to 21.8°C (71.2°F). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, is calculated to be 49°C (120.2°F).

What is the average humidity in September in Carbet Mitan?

The average relative humidity in September is 76%.

What is the driest month in Carbet Mitan?

The month with the least rainfall is September, when the rain falls for 12.5 days and typically collects 21mm (0.83") of precipitation.

How many days does it rain in September in Carbet Mitan?

In Carbet Mitan, during September, the rain falls for 12.5 days and regularly aggregates up to 21mm (0.83") of precipitation.

How many hours of daylight does Carbet Mitan have in September?

In Carbet Mitan, the average day length in September is 12h and 8min.

What time are sunrise and sunset in September in Carbet Mitan?

In September, on the first day of the month, sunrise is at 06:25 and sunset at 18:36. On the last day of the month, in Carbet Mitan, French Guiana, sunrise is at 06:18 and sunset at 18:23 -03.

What month has the most sunshine in Carbet Mitan?

With an average of 8.8h of sunshine, September has the most sunshine of the year in Carbet Mitan.

How long on average sun shines in September in Carbet Mitan?

In Carbet Mitan, the average sunshine duration in September is 8.8h.

When is the highest UV index in Carbet Mitan?

August through October, with an average maximum UV index of 7, are months with the highest UV index.

How high is the UV index in September in Carbet Mitan?

The average daily maximum UV index in September in Carbet Mitan, French Guiana, is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Carbet Mitan, French Guiana

Average temperature in September - Carbet Mitan, French Guiana
  • Average high temperature in September: 33.7°C

The warmest month (with the highest average high temperature) is October (34.3°C).
The month with the lowest average high temperature is February (27.9°C).

  • Average low temperature in September: 21.8°C

The month with the highest average low temperature is April (22.4°C).
The coldest month (with the lowest average low temperature) is July (21.3°C).

Average pressure in September
Carbet Mitan, French Guiana

Average pressure in September - Carbet Mitan, French Guiana
  • Average pressure in September: 1012.1mbar

The month with the highest atmospheric pressure is July (1013.2mbar).
The month with the lowest atmospheric pressure is November (1009.8mbar).

Average wind speed in September
Carbet Mitan, French Guiana

Average wind speed in September - Carbet Mitan, French Guiana
  • Average wind speed in September: 6km/h

The windiest month (with the highest average wind speed) is October (6.1km/h).
The calmest month (with the lowest average wind speed) is June (4.2km/h).

Average humidity in September
Carbet Mitan, French Guiana

Average humidity in September - Carbet Mitan, French Guiana
  • Average humidity in September: 76%

The month with the highest relative humidity is May (91%).
The month with the lowest relative humidity is October (75%).

Average rainfall in September
Carbet Mitan, French Guiana

Average rainfall in September - Carbet Mitan, French Guiana
  • Average rainfall in September: 21mm

The wettest month (with the highest rainfall) is May (195mm).
The driest month (with the least rainfall) is September (21mm).

Average rainfall days in September
Carbet Mitan, French Guiana

Average rainfall days in September - Carbet Mitan, French Guiana
  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is May (28.9 days).
The month with the least rainy days is October (12 days).

Average daylight in September /
Average sunshine in September
Carbet Mitan, French Guiana

Average daylight in September / Average sunshine in September - Carbet Mitan, French Guiana
  • Average daylight in September: 12h and 1min

The month with the longest days is June (Average daylight: 12h and 18min).
The month with the shortest days is December (Average daylight: 11h and 54min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is September (Average sunshine: 8h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).

Average sunshine days in September
Carbet Mitan, French Guiana

Average sunshine days in September - Carbet Mitan, French Guiana
  • Average sunshine days in September: 13.5 days

The month with the most sunshine days is October (16.3 days).
The month with the least sunshine days is May (1.8 days).

Average UV index in September
Carbet Mitan, French Guiana

Average UV index in September - Carbet Mitan, French Guiana
  • Average UV index in September: 7

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

Average cloud cover in September
Carbet Mitan, French Guiana

Average cloud cover in September - Carbet Mitan, French Guiana
  • Average cloud cover in September: 48

The month with the most cloud cover is February (Cloud cover 78).
The month with the least cloud cover is October (Cloud cover 46).

Average visibility in September
Carbet Mitan, French Guiana

Average visibility in September - Carbet Mitan, French Guiana
  • Average visibility in September: 7km

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

Carbet Mitan, French Guiana

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