September weather forecastDecotelette, Haiti
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Decotelette, Haiti, with temperature in the range of an average high of 28.5°C (83.3°F) and an average low of 24.5°C (76.1°F).Temperature
August's transformation into September witnesses an average high-temperature of a still moderately hot 28.5°C (83.3°F), noting a minor change from the preceding month. In Decotelette, the nighttime temperature in September descends gently to an average of 24.5°C (76.1°F).Heat index
Throughout September, the heat index is appraised at a tropical 33°C (91.4°F). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Humidity
In September, the average relative humidity is 80%.Rainfall
In Decotelette, in September, during 24.3 rainfall days, 111mm (4.37") of precipitation is typically accumulated. In Decotelette, during the entire year, the rain falls for 283.3 days and collects up to 1053mm (41.46") of precipitation.Daylight
In Decotelette, the average length of the day in September is 12h and 14min.On the first day of September in Decotelette, sunrise is at 06:42 and sunset at 19:11. On the last day of the month, sunrise is at 06:47 and sunset at 18:46 EDT.
Sunshine
In September, the average sunshine in Decotelette is 10.4h.UV index
May through October, 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 radiation for the ordinary person.Note: In September, the maximum UV index of 7 transforms into these recommendations:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Decotelette, Haiti
- Average high temperature in September: 28.5°C
The warmest months (with the highest average high temperature) are July and August (28.8°C).
The month with the lowest average high temperature is March (25.8°C).
- Average low temperature in September: 24.5°C
The month with the highest average low temperature is August (25°C).
The coldest month (with the lowest average low temperature) is March (21.8°C).
Average pressure in September
Decotelette, Haiti
- Average pressure in September: 1012.6mbar
The month with the highest atmospheric pressure is January (1015.8mbar).
The month with the lowest atmospheric pressure is October (1011.8mbar).
Average wind speed in September
Decotelette, Haiti
- Average wind speed in September: 7.4km/h
The windiest month (with the highest average wind speed) is March (12.1km/h).
The calmest month (with the lowest average wind speed) is September (7.4km/h).
Average humidity in September
Decotelette, Haiti
- Average humidity in September: 80%
The months with the highest relative humidity are October and November (81%).
The months with the lowest relative humidity are January, February, March, June, July, August and December (79%).
Average rainfall in September
Decotelette, Haiti
- Average rainfall in September: 111mm
The wettest month (with the highest rainfall) is May (154mm).
The driest month (with the least rainfall) is December (47mm).
Average rainfall days in September
Decotelette, Haiti
- Average rainfall days in September: 24.3 days
The months with the highest number of rainy days are May and October (27.5 days).
The month with the least rainy days is December (19 days).
Average daylight in September /
Average sunshine in September
Decotelette, Haiti
- Average daylight in September: 12h and 12min
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 24min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 6h and 54min).
Average sunshine days in September
Decotelette, Haiti
- Average sunshine days in September: 3.4 days
The month with the most sunshine days is January (5.8 days).
The month with the least sunshine days is May (1 days).
Average UV index in September
Decotelette, Haiti
- Average UV index in September: 7
The months with the highest UV index are May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, November and December (UV index 6).
Average cloud cover in September
Decotelette, Haiti
- Average cloud cover in September: 25
The month with the most cloud cover is May (Cloud cover 32).
The month with the least cloud cover is July (Cloud cover 23).
Average visibility in September
Decotelette, 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).
