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
The heat index in October is estimated at a blazing hot 51°C (123.8°F). Forewarned: Heat cramps and heat exhaustion are anticipated. Ongoing physical activity increases the likelihood of heatstroke.Understand that the heat index values take into account shaded locations 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 'feels like' or 'apparent temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.
Humidity
October is the least humid month, with an average relative humidity of 72%.Rainfall
The month with the least rainfall in Certitude is October, when the rain falls for 10.4 days and typically collects 21mm (0.83") of precipitation.Daylight
The average length of the day in October is 12h and 2min.On the first day of the month, sunrise is at 06:20 and sunset at 18:24. On the last day of October, in Certitude, French Guiana, sunrise is at 06:17 and sunset at 18:16 -03.
Sunshine
September and October, with an average of 8.8h of sunshine, are months with the most sunshine in Certitude.UV index
The months with the highest UV index are August through November, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In October, the maximum UV index of 7 translates into these guidelines:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the warmest month in Certitude?
How hot does it get in Certitude in October?
What is the least humid month in Certitude?
What is the average humidity in October in Certitude?
What is the driest month in Certitude?
How many days does it rain in October in Certitude?
How many hours of daylight does Certitude have in October?
When is the sunrise / sunset in October in Certitude?
What are the months with the most sunshine in Certitude?
How long on average sun shines in October in Certitude?
When is the highest UV index in Certitude?
How high is the UV index in October in Certitude?
Average temperature in October
Certitude, 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
Certitude, 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
Certitude, 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
Certitude, 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
Certitude, 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
Certitude, 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
Certitude, 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
Certitude, 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
Certitude, 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
Certitude, 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
Certitude, 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).
