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
Weather in September
Temperature
September brings an average high-temperature of a still warm 29.1°C (84.4°F), nearly identical to the preceding month. During September, Petit-Trou-de-Nippes's temperature shows a minor deviation from daytime highs, falling to a steady low-temperature average of 26.1°C (79°F).Heat index
The heat index value during September is appraised at a sweltering 35°C (95°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.Heat index guidelines indicate values are for light wind scenarios and shaded regions. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', ties air temperature with relative humidity to produce the perceived temperature sensation. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are of high significance 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. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.
Humidity
In September, the average relative humidity is 78%.Rainfall
In September, the rain falls for 20.5 days. Throughout September, 70mm (2.76") of precipitation is accumulated. In Petit-Trou-de-Nippes, during the entire year, the rain falls for 234.5 days and collects up to 663mm (26.1") of precipitation.Daylight
The average length of the day in September is 12h and 14min.On the first day of the month, sunrise is at 06:39 and sunset at 19:08. On the last day of September, in Petit-Trou-de-Nippes, sunrise is at 06:44 and sunset at 18:43 EDT.
Sunshine
The average sunshine in September in Petit-Trou-de-Nippes is 10.1h.UV index
January, February, April through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The UV index of 7 in September translates into these instructions:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Frequently asked questions
How hot is September in Petit-Trou-de-Nippes?
What is the average humidity in September in Petit-Trou-de-Nippes?
How much does it rain in Petit-Trou-de-Nippes in September?
What is the average length of the day in September in Petit-Trou-de-Nippes?
When are sunrise and sunset in September in Petit-Trou-de-Nippes?
How long on average sun shines in September in Petit-Trou-de-Nippes?
When is the highest UV index in Petit-Trou-de-Nippes?
How high is the UV index in September in Petit-Trou-de-Nippes?
Average temperature in September
Petit-Trou-de-Nippes, Haiti
- Average high temperature in September: 29.1°C
The warmest month (with the highest average high temperature) is August (29.3°C).
The months with the lowest average high temperature are January and March (26.8°C).
- Average low temperature in September: 26.1°C
The month with the highest average low temperature is August (26.2°C).
The coldest month (with the lowest average low temperature) is March (23.4°C).
Average pressure in September
Petit-Trou-de-Nippes, Haiti
- Average pressure in September: 1012.5mbar
The month with the highest atmospheric pressure is January (1015.6mbar).
The month with the lowest atmospheric pressure is October (1011.7mbar).
Average wind speed in September
Petit-Trou-de-Nippes, Haiti
- Average wind speed in September: 12.4km/h
The windiest month (with the highest average wind speed) is June (18.9km/h).
The calmest month (with the lowest average wind speed) is November (11.3km/h).
Average humidity in September
Petit-Trou-de-Nippes, Haiti
- Average humidity in September: 78%
The months with the highest relative humidity are May, June and July (79%).
The months with the lowest relative humidity are January, February, March and December (76%).
Average rainfall in September
Petit-Trou-de-Nippes, Haiti
- Average rainfall in September: 70mm
The wettest month (with the highest rainfall) is October (95mm).
The driest month (with the least rainfall) is January (26mm).
Average rainfall days in September
Petit-Trou-de-Nippes, Haiti
- Average rainfall days in September: 20.5 days
The month with the highest number of rainy days is May (23.7 days).
The months with the least rainy days are June and December (15.2 days).
Average daylight in September /
Average sunshine in September
Petit-Trou-de-Nippes, Haiti
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 0min).
- Average sunshine in September: 10h and 1min
The month with the most sunshine is August (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 7h and 12min).
Average sunshine days in September
Petit-Trou-de-Nippes, Haiti
- Average sunshine days in September: 5.3 days
The month with the most sunshine days is June (9.6 days).
The month with the least sunshine days is April (2.8 days).
Average UV index in September
Petit-Trou-de-Nippes, Haiti
- Average UV index in September: 7
The months with the highest UV index are January, February, April, May, June, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is March (UV index 6).
Average cloud cover in September
Petit-Trou-de-Nippes, Haiti
- Average cloud cover in September: 23
The months with the most cloud cover are April and May (Cloud cover 29).
The months with the least cloud cover are January and December (Cloud cover 20).
Average visibility in September
Petit-Trou-de-Nippes, 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).
Petit-Trou-de-Nippes, Haiti
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