October weather forecastSiminiout, French Guiana
October
Weather in October
October, like September, is another tropical autumn month in Siminiout, French Guiana, with an average temperature fluctuating between 22.2°C (72°F) and 34.3°C (93.7°F).Temperature
The warmest period is October, when temperatures fluctuate between an average high of 34.3°C (93.7°F) and a low of 22.2°C (72°F).Heat index
October's mean heat index is appraised at a burning hot 51°C (123.8°F). Attention: Heat exhaustion and heat cramps are quite likely. Heatstroke becomes a risk with continued exertion.When referencing the heat index, its values are suitable for shady environments and light breezes. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', gives an indication of how one might feel in terms of heat after considering humidity. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.
Humidity
With an average relative humidity of 75%, October is the least humid month in Siminiout, French Guiana.Rainfall
In Siminiout, during October, the rain falls for 12 days and regularly aggregates up to 22mm (0.87") of precipitation. Throughout the year, in Siminiout, there are 270.6 rainfall days, and 1131mm (44.53") of precipitation is accumulated.Daylight
In October, the average length of the day in Siminiout is 12h and 3min.On the first day of October, sunrise is at 06:18 and sunset at 18:23. On the last day of the month, sunrise is at 06:14 and sunset at 18:15 -03.
Sunshine
In Siminiout, the average sunshine in October is 8.7h.UV index
August through October, with an average maximum UV index of 7, are months with the highest UV index in Siminiout, French Guiana. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for average individuals.Note: An average UV index of 7 in October transforms into this advice:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Siminiout, French Guiana
- Average high temperature in October: 34.3°C
The warmest month (with the highest average high temperature) is October (34.3°C).
The month with the lowest average high temperature is February (27.9°C).
- Average low temperature in October: 22.2°C
The month with the highest average low temperature is April (22.4°C).
The coldest month (with the lowest average low temperature) is July (21.3°C).
Average pressure in October
Siminiout, 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
Siminiout, French Guiana
- Average wind speed in October: 6.1km/h
The windiest month (with the highest average wind speed) is October (6.1km/h).
The calmest month (with the lowest average wind speed) is June (4.2km/h).
Average humidity in October
Siminiout, French Guiana
- Average humidity in October: 75%
The month with the highest relative humidity is May (91%).
The month with the lowest relative humidity is October (75%).
Average rainfall in October
Siminiout, French Guiana
- Average rainfall in October: 22mm
The wettest month (with the highest rainfall) is May (195mm).
The driest month (with the least rainfall) is September (21mm).
Average rainfall days in October
Siminiout, French Guiana
- Average rainfall days in October: 12 days
The month with the highest number of rainy days is May (28.9 days).
The month with the least rainy days is October (12 days).
Average daylight in October /
Average sunshine in October
Siminiout, French Guiana
- Average daylight in October: 12h and 6min
The month with the longest days is June (Average daylight: 12h and 18min).
The month with the shortest days is December (Average daylight: 12h and 0min).
- Average sunshine in October: 8h and 42min
The month with the most sunshine is September (Average sunshine: 8h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in October
Siminiout, French Guiana
- Average sunshine days in October: 16.3 days
The month with the most sunshine days is October (16.3 days).
The month with the least sunshine days is May (1.8 days).
Average UV index in October
Siminiout, French Guiana
- Average UV index in October: 7
The months with the highest UV index are August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, November and December (UV index 6).
Average cloud cover in October
Siminiout, French Guiana
- Average cloud cover in October: 46
The month with the most cloud cover is February (Cloud cover 78).
The month with the least cloud cover is October (Cloud cover 46).
Average visibility in October
Siminiout, French Guiana
- Average visibility in October: 7km
The months with the highest visibility are September and October (7km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, November and December (6km).
