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
Peak temperatures are observed in September and October, averaging a high-temperature of 30.9°C (87.6°F).Heat index
The heat index value during October is appraised at a blistering 40°C (104°F). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', 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. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for 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.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.
Humidity
The months with the lowest humidity are September and October, with an average relative humidity of 77%.Rainfall
In October, in Roche Hirondelle, French Guiana, the rain falls for 14.3 days. Throughout October, 33mm (1.3") of precipitation is accumulated. In Roche Hirondelle, during the entire year, the rain falls for 288 days and collects up to 1773mm (69.8") of precipitation.Daylight
The average length of the day in October is 12h and 0min.On the first day of the month, sunrise is at 06:20 and sunset at 18:24. On the last day of October, in Roche Hirondelle, sunrise is at 06:19 and sunset at 18:14 -03.
Sunshine
In Roche Hirondelle, the average sunshine in October is 9.2h.UV index
The months with the highest UV index are July through November, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The UV index of 7 during October translates into the following guidance:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the warmest months in Roche Hirondelle?
How hot is October in Roche Hirondelle?
What are the least humid months in Roche Hirondelle?
What is the average humidity in October in Roche Hirondelle?
How many days does it rain in October in Roche Hirondelle?
How many hours of daylight does Roche Hirondelle have in October?
What time are sunrise and sunset in October in Roche Hirondelle?
How many hours of sunshine does Roche Hirondelle have in October?
When is the highest UV index in Roche Hirondelle?
What is the UV index intensity in October in Roche Hirondelle?
Average temperature in October
Roche Hirondelle, 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 Hirondelle, 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 Hirondelle, 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 Hirondelle, 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 Hirondelle, 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 Hirondelle, 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 Hirondelle, 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 48min).
- 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 Hirondelle, 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 Hirondelle, 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 Hirondelle, 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 Hirondelle, 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).
