Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
May's entry sees an average high-temperature of a still warm 28.8°C (83.8°F), replicating April's climate. An average low-temperature of 22.3°C (72.1°F) marks the month of May.Heat index
The heat index for May is appraised at a sweltering 37°C (98.6°F). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.Know that the heat index computations account for shaded terrains and slight winds. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is found by incorporating humidity levels into the air temperature measurement. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like 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 particularly important for children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.
Humidity
With an average relative humidity of 91%, May is the most humid month.Rainfall
May is the month with the most rainfall in Siminiout. Rain falls for 28.9 days and accumulates 195mm (7.68") of precipitation.Daylight
In May, the average length of the day in Siminiout, French Guiana, is 12h and 15min.On the first day of the month, sunrise is at 06:21 and sunset at 18:35. On the last day of May, in Siminiout, sunrise is at 06:20 and sunset at 18:37 -03.
Sunshine
In May, the average sunshine in Siminiout is 5.5h.UV index
January through July, November and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.Note: During May, 6 as the daily maximum UV index converts into the following advice:
Fend off overexposure. Sun protection is vital. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Frequently asked questions
How hot is May in Siminiout?
What is the most humid month in Siminiout?
What is the average humidity in May in Siminiout?
What is the rainiest month in Siminiout?
How many days does it rain in May in Siminiout?
How many hours of daylight does Siminiout have in May?
When are sunrise and sunset in May in Siminiout?
How long on average sun shines in May in Siminiout?
What are the months with the lowest UV index in Siminiout?
What is the UV index intensity in May in Siminiout?
Average temperature in May
Siminiout, French Guiana
- Average high temperature in May: 28.8°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 May: 22.3°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 May
Siminiout, French Guiana
- Average pressure in May: 1012.3mbar
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 May
Siminiout, French Guiana
- Average wind speed in May: 4.7km/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 May
Siminiout, French Guiana
- Average humidity in May: 91%
The month with the highest relative humidity is May (91%).
The month with the lowest relative humidity is October (75%).
Average rainfall in May
Siminiout, French Guiana
- Average rainfall in May: 195mm
The wettest month (with the highest rainfall) is May (195mm).
The driest month (with the least rainfall) is September (21mm).
Average rainfall days in May
Siminiout, French Guiana
- Average rainfall days in May: 28.9 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 May /
Average sunshine in May
Siminiout, French Guiana
- Average daylight in May: 12h and 2min
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 May: 5h and 3min
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 May
Siminiout, French Guiana
- Average sunshine days in May: 1.8 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 May
Siminiout, French Guiana
- Average UV index in May: 6
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 May
Siminiout, French Guiana
- Average cloud cover in May: 73
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 May
Siminiout, French Guiana
- Average visibility in May: 6km
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).
Siminiout, French Guiana
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