Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
July
Weather in July
Temperature
The beginning of July records an average high-temperature of a still warm 29.5°C (85.1°F), marking a negligible difference from June's 28.8°C (83.8°F). July sees the temperature falling to a mean low of 24.3°C (75.7°F).Heat index
July's heat index is appraised at a sweltering 36°C (96.8°F). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.Evaluating the heat index requires understanding its values in the shade and with gentle winds. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', gives an indication of how one might feel in terms of heat after considering humidity. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital 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.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. 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 body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.
Humidity
In July, the average relative humidity is 81%.Rainfall
In July, in Roche Hirondelle, the rain falls for 27.4 days. Throughout July, 146mm (5.75") of precipitation is accumulated. Throughout the year, there are 288 rainfall days, and 1773mm (69.8") of precipitation is accumulated.Daylight
In July, the average length of the day in Roche Hirondelle, French Guiana, is 12h and 24min.On the first day of July, sunrise is at 06:24 and sunset at 18:50. On the last day of the month, sunrise is at 06:29 and sunset at 18:50 -03.
Sunshine
The average sunshine in July in Roche Hirondelle is 8.4h.UV index
The months with the highest UV index are July 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 unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 7 in July interprets into the following recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. 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 July in Roche Hirondelle?
What is the average humidity in July in Roche Hirondelle?
How many days does it rain in July in Roche Hirondelle?
How many hours of daylight does Roche Hirondelle have in July?
When is the sunrise / sunset in July in Roche Hirondelle?
How long on average sun shines in July in Roche Hirondelle?
When is the highest UV index in Roche Hirondelle?
What is the UV index intensity in July in Roche Hirondelle?
Average temperature in July
Roche Hirondelle, French Guiana
- Average high temperature in July: 29.5°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 July: 24.3°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 July
Roche Hirondelle, French Guiana
- Average pressure in July: 1013.1mbar
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 July
Roche Hirondelle, French Guiana
- Average wind speed in July: 9.7km/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 July
Roche Hirondelle, French Guiana
- Average humidity in July: 81%
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 July
Roche Hirondelle, French Guiana
- Average rainfall in July: 146mm
The wettest month (with the highest rainfall) is May (279mm).
The driest month (with the least rainfall) is September (29mm).
Average rainfall days in July
Roche Hirondelle, French Guiana
- Average rainfall days in July: 27.4 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 July /
Average sunshine in July
Roche Hirondelle, French Guiana
- Average daylight in July: 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 July: 8h and 2min
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 July
Roche Hirondelle, French Guiana
- Average sunshine days in July: 1.5 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 July
Roche Hirondelle, French Guiana
- Average UV index in July: 7
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 July
Roche Hirondelle, French Guiana
- Average cloud cover in July: 38
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 July
Roche Hirondelle, French Guiana
- Average visibility in July: 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).
