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
May
Weather in May
Temperature
L'Observatoire signifies an average high-temperature of a still hot 30.1°C (86.2°F) in May, closely mirroring the 30.2°C (86.4°F) of April. L'Observatoire records an average nighttime low-temperature of 22.1°C (71.8°F) throughout May.Heat index
May's heat index is estimated at a scorching 41°C (105.8°F). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.Factoring in the heat index, values are geared towards shaded areas with light breezes. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', reflects the feeling of heat when considering both air temperature and humidity. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.
Humidity
The most humid month in L'Observatoire is May, with an average relative humidity of 90%.Rainfall
May is the month with the most rainfall. Rain falls for 26.3 days and accumulates 169mm (6.65") of precipitation.Daylight
In L'Observatoire, the average length of the day in May is 12h and 20min.On the first day of the month, sunrise is at 06:24 and sunset at 18:41. On the last day of May, sunrise is at 06:22 and sunset at 18:44 -03.
Sunshine
In L'Observatoire, French Guiana, the average sunshine in May is 5.5h.UV index
The average daily maximum UV index in May in L'Observatoire is 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the average person.Note: The UV index of 6 during May leads to these advisories:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is May in L'Observatoire?
What is the most humid month in L'Observatoire?
What is the average humidity in May in L'Observatoire?
What is the rainiest month in L'Observatoire?
How much does it rain in L'Observatoire in May?
What is the average length of the day in May in L'Observatoire?
What time are sunrise and sunset in May in L'Observatoire?
How long on average sun shines in May in L'Observatoire?
What is the UV index intensity in May in L'Observatoire?
Average temperature in May
L'Observatoire, French Guiana
- Average high temperature in May: 30.1°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 (29.5°C).
- Average low temperature in May: 22.1°C
The month with the highest average low temperature is May (22.1°C).
The coldest month (with the lowest average low temperature) is January (20.6°C).
Average pressure in May
L'Observatoire, French Guiana
- Average pressure in May: 1012.1mbar
The months with the highest atmospheric pressure are June and July (1012.9mbar).
The month with the lowest atmospheric pressure is November (1009.3mbar).
Average wind speed in May
L'Observatoire, French Guiana
- Average wind speed in May: 4.8km/h
The windiest months (with the highest average wind speed) are March and November (5.5km/h).
The calmest month (with the lowest average wind speed) is July (4.4km/h).
Average humidity in May
L'Observatoire, French Guiana
- Average humidity in May: 90%
The month with the highest relative humidity is May (90%).
The month with the lowest relative humidity is October (73%).
Average rainfall in May
L'Observatoire, French Guiana
- Average rainfall in May: 169mm
The wettest month (with the highest rainfall) is May (169mm).
The driest month (with the least rainfall) is October (21mm).
Average rainfall days in May
L'Observatoire, French Guiana
- Average rainfall days in May: 26.3 days
The months with the highest number of rainy days are January and December (28 days).
The month with the least rainy days is September (10.3 days).
Average daylight in May /
Average sunshine in May
L'Observatoire, French Guiana
- Average daylight in May: 12h and 2min
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 May: 5h and 3min
The month with the most sunshine is September (Average sunshine: 9h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in May
L'Observatoire, French Guiana
- Average sunshine days in May: 3.6 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is February (1.4 days).
Average UV index in May
L'Observatoire, French Guiana
- Average UV index in May: 6
The months with the highest UV index are July, August, September, October and November (UV index 7).
The month with the lowest UV index is December (UV index 5).
Average cloud cover in May
L'Observatoire, French Guiana
- Average cloud cover in May: 76
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
L'Observatoire, French Guiana
- Average visibility in May: 6km
The months with the highest visibility are August, September, October and November (7km).
The months with the lowest visibility are January, February, March, April, May, June, July and December (6km).
