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
Lifèbe experiences an average high-temperature of a still moderately hot 29.5°C (85.1°F) in September, subtly different from August's 29.8°C (85.6°F). During September, the average low-temperature is recorded at a still moderately hot 24.3°C (75.7°F).Heat index
September's heat index is estimated at a very hot 36°C (96.8°F). Greater preventive actions are needed, heat exhaustion and heat cramps are likely. Persistent activity could provoke heatstroke.Understand that the heat index values take into account shaded locations and mild winds. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.
Humidity
The average relative humidity in September is 78%.Rainfall
In Lifèbe, in September, during 22.4 rainfall days, 77mm (3.03") of precipitation is typically accumulated. Throughout the year, there are 229.5 rainfall days, and 678mm (26.69") of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 15min.On the first day of the month, sunrise is at 06:33 and sunset at 19:03. On the last day of September, sunrise is at 06:39 and sunset at 18:37 EDT.
Sunshine
In September, the average sunshine is 10h.UV index
The months with the highest UV index are April through October, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In September, a daily maximum UV index of 7 leads to the following instructions:
Ward off overexposure. Defence against solar harm is crucial. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September?
How much does it rain in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the month with the highest UV index?
What is the UV index reading in September?
Average temperature in September
Lifèbe, Haiti
- Average high temperature in September: 29.5°C
The warmest month (with the highest average high temperature) is August (29.8°C).
The month with the lowest average high temperature is January (26.7°C).
- Average low temperature in September: 24.3°C
The month with the highest average low temperature is August (24.7°C).
The coldest month (with the lowest average low temperature) is January (21.3°C).
Average pressure in September
Lifèbe, Haiti
- Average pressure in September: 1013.4mbar
The month with the highest atmospheric pressure is January (1016.9mbar).
The month with the lowest atmospheric pressure is October (1012.7mbar).
Average wind speed in September
Lifèbe, Haiti
- Average wind speed in September: 11.7km/h
The windiest month (with the highest average wind speed) is July (15.8km/h).
The calmest month (with the lowest average wind speed) is October (11km/h).
Average humidity in September
Lifèbe, Haiti
- Average humidity in September: 78%
The month with the highest relative humidity is November (80%).
The months with the lowest relative humidity are March and April (76%).
Average rainfall in September
Lifèbe, Haiti
- Average rainfall in September: 77mm
The wettest month (with the highest rainfall) is July (84mm).
The driest month (with the least rainfall) is December (24mm).
Average rainfall days in September
Lifèbe, Haiti
- Average rainfall days in September: 22.4 days
The month with the highest number of rainy days is May (23.4 days).
The month with the least rainy days is February (13.5 days).
Average daylight in September /
Average sunshine in September
Lifèbe, 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 0min
The month with the most sunshine is June (Average sunshine: 11h and 36min).
The months with the least sunshine are January, February and December (Average sunshine: 7h and 0min).
Average sunshine days in September
Lifèbe, Haiti
- Average sunshine days in September: 4.2 days
The month with the most sunshine days is January (13.1 days).
The month with the least sunshine days is September (4.2 days).
Average UV index in September
Lifèbe, Haiti
- Average UV index in September: 7
The months with the highest UV index are April, May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, November and December (UV index 6).
Average cloud cover in September
Lifèbe, Haiti
- Average cloud cover in September: 21
The month with the most cloud cover is March (Cloud cover 32).
The month with the least cloud cover is July (Cloud cover 20).
Average visibility in September
Lifèbe, 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).
