October weather forecast
Nationale, French Guiana

October

Weather in October

October, the same as September, in Nationale, French Guiana, is another hot autumn month, with an average temperature ranging between max 31.6°C (88.9°F) and min 24.8°C (76.6°F).

Temperature

October, with an average high of 31.6°C (88.9°F) and a low of 24.8°C (76.6°F), signifies the warmest month of the year.

Heat index

Throughout October, the heat index is appraised at a blisteringly hot 41°C (105.8°F). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
Records show heat index calculations are tailored for shaded regions and mild winds. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', integrates the air's temperature and its humidity to showcase the felt temperature by people. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

September and October, with an average relative humidity of 76%, are the least humid months.

Rainfall

In Nationale, in October, it is raining for 11.6 days, with typically 26mm (1.02") of accumulated precipitation. In Nationale, during the entire year, the rain falls for 277 days and collects up to 1707mm (67.2") of precipitation.

Daylight

In October, the average length of the day is 12h and 1min.
On the first day of the month, sunrise is at 06:18 and sunset at 18:22. On the last day of October, in Nationale, sunrise is at 06:15 and sunset at 18:13 -03.

Sunshine

The average sunshine in October is 9.1h.

UV index

June through November, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: An average maximum UV index of 7 in October leads to these recommendations:
Shield from overexposure. Defense against sun-related harm is required. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. A hat with a broad brim is indispensable, filtering out up to half of UV rays.

Frequently asked questions

What month is the hottest in Nationale?
In Nationale, the average highest temperatures are observed in October, with a high of 31.6°C (88.9°F) and a low of 24.8°C (76.6°F).
How hot does it get in Nationale in October?
October temperatures in Nationale vary between a high-temperature of 31.6°C (88.9°F) and a low-temperature of 24.8°C (76.6°F). In October, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines air temperature and relative humidity, is appraised at 41°C (105.8°F).
What is the least humid month in Nationale?
September and October, with an average relative humidity of 76%, are the least humid months in Nationale, French Guiana.
What is the average humidity in October in Nationale?
The average relative humidity in October is 76%.
How many days does it rain in October in Nationale?
In Nationale, in October, during 11.6 rainfall days, 26mm (1.02") of precipitation is typically accumulated.
How many hours of daylight does Nationale have in October?
In October, the average day length in Nationale, French Guiana, is 12h and 1min.
When is the sunrise / sunset in October in Nationale?
On the first day of October in Nationale, French Guiana, sunrise is at 06:18 and sunset at 18:22. On the last day of the month, sunrise is at 06:15 and sunset at 18:13 -03.
How long on average sun shines in October in Nationale?
In Nationale, French Guiana, the average sunshine duration in October is 9.1h.
What are the months with the highest UV index in Nationale?
The months with the highest UV index in Nationale are June through November, with an average maximum UV index of 7.
What is the UV index reading in October in Nationale?
In Nationale, French Guiana, the average daily maximum UV index in October is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to Sun's UV rays.
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 October
Nationale, French Guiana
  • Average high temperature in October: 31.6°C

The warmest month (with the highest average high temperature) is October (31.6°C).
The month with the lowest average high temperature is February (27.7°C).

  • Average low temperature in October: 24.8°C

The months with the highest average low temperature are October and November (24.8°C).
The coldest months (with the lowest average low temperature) are June and July (23.8°C).

Average pressure in October
Nationale, French Guiana
  • Average pressure in October: 1010.6mbar

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 October
Nationale, French Guiana
  • Average wind speed in October: 11.1km/h

The windiest month (with the highest average wind speed) is February (12.9km/h).
The calmest month (with the lowest average wind speed) is July (8.3km/h).

Average humidity in October
Nationale, French Guiana
  • Average humidity in October: 76%

The month with the highest relative humidity is May (86%).
The months with the lowest relative humidity are September and October (76%).

Average rainfall in October
Nationale, French Guiana
  • Average rainfall in October: 26mm

The wettest month (with the highest rainfall) is May (293mm).
The driest month (with the least rainfall) is September (23mm).

Average rainfall days in October
Nationale, French Guiana
  • Average rainfall days in October: 11.6 days

The month with the highest number of rainy days is May (28.9 days).
The month with the least rainy days is October (11.6 days).

Average daylight in October /
Average sunshine in October
Nationale, French Guiana
  • Average daylight in October: 12h and 0min

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 54min).

  • Average sunshine in October: 9h and 1min

The month with the most sunshine is September (Average sunshine: 9h and 12min).
The month with the least sunshine is February (Average sunshine: 5h and 36min).

Average sunshine days in October
Nationale, French Guiana
  • Average sunshine days in October: 16.5 days

The month with the most sunshine days is October (16.5 days).
The month with the least sunshine days is June (0.9 days).

Average UV index in October
Nationale, French Guiana
  • Average UV index in October: 7

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

Average cloud cover in October
Nationale, French Guiana
  • Average cloud cover in October: 28

The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 25).

Average visibility in October
Nationale, French Guiana
  • Average visibility in October: 10km

The months with the highest visibility are January, February, March, August, September, October and November (10km).
The months with the lowest visibility are April, May, June, July and December (9km).

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