Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
Entering September, the average high-temperature is recorded at a warm 29.8°C (85.6°F), exhibiting a minimal shift from August's 30.4°C (86.7°F). During the month of September, Bongris's nighttime temperature lowers to an average of 23.1°C (73.6°F).Heat index
September's average heat index is evaluated at a fiery hot 37°C (98.6°F). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.When assessing, remember that heat index measurements are for light winds and shaded spots. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a composite of temperature and humidity figures to convey how warm it feels. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.
Humidity
In Bongris, the average relative humidity in September is 79%.Rainfall
In Bongris, Haiti, in September, during 23.6 rainfall days, 101mm (3.98") of precipitation is typically accumulated. Throughout the year, there are 219.6 rainfall days, and 736mm (28.98") of precipitation is accumulated.Daylight
In Bongris, Haiti, the average length of the day in September is 12h and 14min.On the first day of the month, sunrise is at 06:35 and sunset at 19:05. On the last day of September, in Bongris, sunrise is at 06:41 and sunset at 18:39 EDT.
Sunshine
In September, the average sunshine is 10.1h.UV index
The months with the highest UV index are April through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The daily high UV index of 7 in September translates into this advice:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September in Bongris?
How much does it rain in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Bongris have in September?
What is the month with the highest UV index?
What is the UV index reading in September?
Average temperature in September
Bongris, Haiti
- Average high temperature in September: 29.8°C
The warmest month (with the highest average high temperature) is July (30.7°C).
The month with the lowest average high temperature is January (27.3°C).
- Average low temperature in September: 23.1°C
The month with the highest average low temperature is July (23.5°C).
The coldest month (with the lowest average low temperature) is January (20.1°C).
Average pressure in September
Bongris, Haiti
- Average pressure in September: 1013.2mbar
The month with the highest atmospheric pressure is January (1016.6mbar).
The month with the lowest atmospheric pressure is October (1012.5mbar).
Average wind speed in September
Bongris, Haiti
- Average wind speed in September: 7km/h
The windiest month (with the highest average wind speed) is February (11.2km/h).
The calmest month (with the lowest average wind speed) is September (7km/h).
Average humidity in September
Bongris, Haiti
- Average humidity in September: 79%
The month with the highest relative humidity is November (81%).
The months with the lowest relative humidity are March and April (74%).
Average rainfall in September
Bongris, Haiti
- Average rainfall in September: 101mm
The wettest month (with the highest rainfall) is May (118mm).
The driest months (with the least rainfall) are January and December (13mm).
Average rainfall days in September
Bongris, Haiti
- Average rainfall days in September: 23.6 days
The month with the highest number of rainy days is May (25.3 days).
The month with the least rainy days is December (8.5 days).
Average daylight in September /
Average sunshine in September
Bongris, Haiti
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 11h and 0min).
- Average sunshine in September: 10h and 1min
The months with the most sunshine are July and August (Average sunshine: 11h and 18min).
The months with the least sunshine are January and February (Average sunshine: 7h and 12min).
Average sunshine days in September
Bongris, Haiti
- Average sunshine days in September: 3.2 days
The month with the most sunshine days is December (20.4 days).
The month with the least sunshine days is September (3.2 days).
Average UV index in September
Bongris, Haiti
- Average UV index in September: 7
The months with the highest UV index are April, May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, March, October, November and December (UV index 6).
Average cloud cover in September
Bongris, Haiti
- Average cloud cover in September: 24
The month with the most cloud cover is May (Cloud cover 32).
The month with the least cloud cover is December (Cloud cover 18).
Average visibility in September
Bongris, Haiti
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
