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
As Roche Hirondelle, French Guiana, welcomes May, the average high-temperature is noted at a still warm 28.5°C (83.3°F), closely aligning with the preceding month. Roche Hirondelle navigates through May with a barely noticeable decrease in temperature at night, stabilizing at a still warm 24.9°C (76.8°F).Heat index
The heat index in May is appraised at a hot 34°C (93.2°F). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.The heat index's values are generally associated with conditions in shade and light breezes. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', provides an understanding of perceived warmth by combining temperature and relative humidity. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
Humidity
The months with the highest humidity in Roche Hirondelle are February and May, with an average relative humidity of 84%.Rainfall
The month with the most rainfall in Roche Hirondelle is May, when the rain falls for 29.6 days and typically aggregates up to 279mm (10.98") of precipitation.Daylight
In Roche Hirondelle, the average length of the day in May is 12h and 22min.On the first day of May in Roche Hirondelle, French Guiana, sunrise is at 06:20 and sunset at 18:39. On the last day of the month, sunrise is at 06:18 and sunset at 18:43 -03.
Sunshine
In May, the average sunshine is 6.9h.UV index
The months with the lowest UV index in Roche Hirondelle are January through June and December, with an average maximum UV index of 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: In May, a regular UV index of 6 translates into these guidelines:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Roche Hirondelle in May?
What are the most humid months in Roche Hirondelle?
What is the average humidity in May in Roche Hirondelle?
What is the wettest month in Roche Hirondelle?
How many days does it rain in May in Roche Hirondelle?
How many hours of daylight does Roche Hirondelle have in May?
When are sunrise and sunset in May in Roche Hirondelle?
How long on average sun shines in May in Roche Hirondelle?
What is the month with the lowest UV index in Roche Hirondelle?
What is the UV index intensity in May in Roche Hirondelle?
Average temperature in May
Roche Hirondelle, French Guiana
- Average high temperature in May: 28.5°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 May: 24.9°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 May
Roche Hirondelle, French Guiana
- Average pressure in May: 1012.3mbar
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 May
Roche Hirondelle, French Guiana
- Average wind speed in May: 12.8km/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 May
Roche Hirondelle, French Guiana
- Average humidity in May: 84%
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 May
Roche Hirondelle, French Guiana
- Average rainfall in May: 279mm
The wettest month (with the highest rainfall) is May (279mm).
The driest month (with the least rainfall) is September (29mm).
Average rainfall days in May
Roche Hirondelle, French Guiana
- Average rainfall days in May: 29.6 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 May /
Average sunshine in May
Roche Hirondelle, 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 48min).
- Average sunshine in May: 6h and 5min
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 May
Roche Hirondelle, French Guiana
- Average sunshine days in May: 0.6 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 May
Roche Hirondelle, 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 months with the lowest UV index are January, February, March, April, May, June and December (UV index 6).
Average cloud cover in May
Roche Hirondelle, French Guiana
- Average cloud cover in May: 52
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 May
Roche Hirondelle, French Guiana
- Average visibility in May: 9km
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).
