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
September and October, when the average high-temperature reaches 30.9°C (87.6°F), are the warmest months.Heat index
In October, the heat index is computed to be a blistering 40°C (104°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.It is crucial to understand that heat index figures are for shade and gentle wind conditions. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'real feel', reflects the blend of air temperature and relative humidity to give a temperature impression. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. As body temperatures escalate without effective heat release, one might face dehydration threats.
Humidity
September and October, with an average relative humidity of 77%, are the least humid months.Rainfall
In October, the rain falls for 14.3 days. Throughout October, 33mm (1.3") of precipitation is accumulated. Throughout the year, there are 288 rainfall days, and 1773mm (69.8") of precipitation is accumulated.Daylight
In October, the average length of the day is 12h and 1min.On the first day of the month, sunrise is at 06:19 and sunset at 18:24. On the last day of October, in Roche Serpent, sunrise is at 06:17 and sunset at 18:14 -03.
Sunshine
The average sunshine in October is 9.2h.UV index
July through November, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: A maximum high UV index of 7 in October 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 potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What part of the year is the hottest in Roche Serpent?
Is it hot in Roche Serpent during October?
What are the least humid months in Roche Serpent?
What is the average humidity in October in Roche Serpent?
How many days does it rain in October in Roche Serpent?
How many hours of daylight does Roche Serpent have in October?
What time are sunrise and sunset in October in Roche Serpent?
How many hours of sunshine does Roche Serpent have in October?
When is the highest UV index in Roche Serpent?
What is the UV index intensity in October in Roche Serpent?
Average temperature in October
Roche Serpent, French Guiana
- Average high temperature in October: 30.9°C
The warmest months (with the highest average high temperature) are September and October (30.9°C).
The month with the lowest average high temperature is February (27.5°C).
- Average low temperature in October: 25°C
The month with the highest average low temperature is November (25.1°C).
The coldest month (with the lowest average low temperature) is January (24.2°C).
Average pressure in October
Roche Serpent, French Guiana
- Average pressure in October: 1010.6mbar
The months with the highest atmospheric pressure are June and July (1013.1mbar).
The month with the lowest atmospheric pressure is November (1009.7mbar).
Average wind speed in October
Roche Serpent, French Guiana
- Average wind speed in October: 12.6km/h
The windiest month (with the highest average wind speed) is February (15.3km/h).
The calmest month (with the lowest average wind speed) is July (9.7km/h).
Average humidity in October
Roche Serpent, French Guiana
- Average humidity in October: 77%
The months with the highest relative humidity are February and May (84%).
The months with the lowest relative humidity are September and October (77%).
Average rainfall in October
Roche Serpent, French Guiana
- Average rainfall in October: 33mm
The wettest month (with the highest rainfall) is May (279mm).
The driest month (with the least rainfall) is September (29mm).
Average rainfall days in October
Roche Serpent, French Guiana
- Average rainfall days in October: 14.3 days
The month with the highest number of rainy days is May (29.6 days).
The months with the least rainy days are September and October (14.3 days).
Average daylight in October /
Average sunshine in October
Roche Serpent, 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 18min).
The month with the least sunshine is February (Average sunshine: 5h and 48min).
Average sunshine days in October
Roche Serpent, French Guiana
- Average sunshine days in October: 13.2 days
The month with the most sunshine days is October (13.2 days).
The month with the least sunshine days is May (0.6 days).
Average UV index in October
Roche Serpent, French Guiana
- Average UV index in October: 7
The months with the highest UV index are July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June and December (UV index 6).
Average cloud cover in October
Roche Serpent, French Guiana
- Average cloud cover in October: 29
The month with the most cloud cover is February (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 25).
Average visibility in October
Roche Serpent, French Guiana
- Average visibility in October: 10km
The months with the highest visibility are January, February, March, April, August, September, October, November and December (10km).
The months with the lowest visibility are May, June and July (9km).
