September weather forecastSenaille, Haiti
September
Weather in September
The first month of the autumn, September, is still a warm month in Senaille, Haiti, with an average temperature varying between 26.1°C (79°F) and 29.1°C (84.4°F).Temperature
The average high-temperature is a still warm 29.1°C (84.4°F) in September, hardly different from the 29.3°C (84.7°F) recorded in August. The nighttime temperature in Senaille demonstrates a marginal decline, averaging at a still moderately hot 26.1°C (79°F) during September.Heat index
For most parts of September, the heat index is computed to be a very hot 35°C (95°F). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.Always consider that heat index estimations are for light winds and places in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is the outcome of merging air's temperature and its humidity metrics. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. Overheating and potential dehydration arise when body heat gain eclipses its release capability.
Humidity
In Senaille, Haiti, the average relative humidity in September is 78%.Rainfall
In Senaille, in September, it is raining for 20.5 days, with typically 70mm (2.76") of accumulated precipitation. In Senaille, Haiti, during the entire year, the rain falls for 234.5 days and collects up to 663mm (26.1") of precipitation.Daylight
In September, the average length of the day in Senaille is 12h and 14min.On the first day of September, sunrise is at 06:39 and sunset at 19:07. On the last day of the month, sunrise is at 06:44 and sunset at 18:43 EDT.
Sunshine
The average sunshine in September is 10.1h.UV index
The months with the highest UV index in Senaille are January, February, April through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 7 suggests these recommendations:
Inhibit overexposure. Warding off sun damage is of utmost importance. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun 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
Average temperature in September
Senaille, 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
Senaille, 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
Senaille, 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
Senaille, 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
Senaille, 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
Senaille, 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
Senaille, 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 6min).
- Average sunshine in September: 10h and 6min
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
Senaille, 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
Senaille, 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
Senaille, 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
Senaille, 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).
