Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
October
Weather in October
Temperature
The month of October sees the highest average temperatures, reaching 34.9°C (94.8°F) at the peak and 20.8°C (69.4°F) at the low.Heat index
For most parts of October, the heat index is computed to be a burning hot 51°C (123.8°F). Remain cautious: Heat cramps along with heat exhaustion are foreseeable. Ongoing activity may precipitate heatstroke.Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. 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 'felt air temperature', offers an insight into how hot it feels when we factor in moisture content. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.
Humidity
October is the least humid month, with an average relative humidity of 72%.Rainfall
October is the month with the least rainfall. Rain falls for 10.4 days and accumulates 21mm (0.83") of precipitation.Daylight
The average length of the day in October in Grand Usine is 12h and 2min.On the first day of October in Grand Usine, sunrise is at 06:18 and sunset at 18:23. On the last day of the month, sunrise is at 06:15 and sunset at 18:15 -03.
Sunshine
September and October, with an average of 8.8h of sunshine, are months with the most sunshine in Grand Usine.UV index
The months with the highest UV index are August through November, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In October, the average maximum UV index of 7 translates into the following recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. 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. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the hottest in Grand Usine?
How hot does it get in Grand Usine in October?
What is the least humid month in Grand Usine?
What is the average humidity in October in Grand Usine?
What is the driest month in Grand Usine?
How many days does it rain in October in Grand Usine?
How many hours of daylight does Grand Usine have in October?
What time are sunrise and sunset in October in Grand Usine?
What are the months with the most sunshine in Grand Usine?
How long on average sun shines in October in Grand Usine?
What is the month with the highest UV index in Grand Usine?
How high is the UV index in October in Grand Usine?
Average temperature in October
Grand Usine, French Guiana
- Average high temperature in October: 34.9°C
The warmest month (with the highest average high temperature) is October (34.9°C).
The month with the lowest average high temperature is February (29.3°C).
- Average low temperature in October: 20.8°C
The month with the highest average low temperature is May (21.9°C).
The coldest months (with the lowest average low temperature) are August and September (20.5°C).
Average pressure in October
Grand Usine, French Guiana
- Average pressure in October: 1010.2mbar
The months with the highest atmospheric pressure are June and July (1013mbar).
The month with the lowest atmospheric pressure is November (1009.4mbar).
Average wind speed in October
Grand Usine, French Guiana
- Average wind speed in October: 5.2km/h
The windiest months (with the highest average wind speed) are February, March and November (5.3km/h).
The calmest month (with the lowest average wind speed) is July (4.2km/h).
Average humidity in October
Grand Usine, French Guiana
- Average humidity in October: 72%
The month with the highest relative humidity is May (90%).
The month with the lowest relative humidity is October (72%).
Average rainfall in October
Grand Usine, French Guiana
- Average rainfall in October: 21mm
The wettest month (with the highest rainfall) is May (192mm).
The driest month (with the least rainfall) is October (21mm).
Average rainfall days in October
Grand Usine, French Guiana
- Average rainfall days in October: 10.4 days
The months with the highest number of rainy days are January and March (26.8 days).
The month with the least rainy days is October (10.4 days).
Average daylight in October /
Average sunshine in October
Grand Usine, French Guiana
- Average daylight in October: 12h and 0min
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 October: 8h and 5min
The months with the most sunshine are September and October (Average sunshine: 8h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in October
Grand Usine, French Guiana
- Average sunshine days in October: 17.3 days
The month with the most sunshine days is October (17.3 days).
The month with the least sunshine days is February (1.8 days).
Average UV index in October
Grand Usine, French Guiana
- Average UV index in October: 7
The months with the highest UV index are August, September, October and November (UV index 7).
The months with the lowest UV index are January, March and December (UV index 5).
Average cloud cover in October
Grand Usine, French Guiana
- Average cloud cover in October: 44
The month with the most cloud cover is February (Cloud cover 81).
The month with the least cloud cover is October (Cloud cover 44).
Average visibility in October
Grand Usine, French Guiana
- Average visibility in October: 8km
The month with the highest visibility is October (8km).
The month with the lowest visibility is May (5km).
