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 sea temperature 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
Port Nelson's average high-temperature in September sits at a still moderately hot 28.6°C (83.5°F), showing little difference from the previous month. A consistent nighttime average temperature of 27.8°C (82°F) is maintained in Port Nelson, The Bahamas, during September.Heat index
Throughout September, the heat index is estimated at a hot 33°C (91.4°F). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.Know that the heat index computations account for shaded terrains and slight winds. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', measures the perceived warmth when incorporating the humidity present in the air. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
Humidity
The average relative humidity in September is 76%.Rainfall
In September, in Port Nelson, the rain falls for 21.2 days. Throughout September, 101mm (3.98") of precipitation is accumulated. In Port Nelson, during the entire year, the rain falls for 214.6 days and collects up to 747mm (29.41") of precipitation.Sea temperature
In Port Nelson, in September, the average water temperature is 29.3°C (84.7°F).Note: Water temperature ranging from 25°C (77°F) to 29°C (84.2°F) is seen as very warm and delightful by everyone. During these temperatures, water activities become enjoyable, without causing discomfort for extended periods.
Daylight
The average length of the day in September in Port Nelson is 12h and 17min.On the first day of September, sunrise is at 06:41 and sunset at 19:16. On the last day of the month, sunrise is at 06:50 and sunset at 18:47 EDT.
Sunshine
In September, the average sunshine is 9.4h.UV index
The months with the highest UV index in Port Nelson are May through October, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: The UV index of 7 during September translates into the following guidance:
Resist overexposure. Safeguarding from solar damage is indispensable. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Heads up! The reflection of sand and water notably intensifies UV rays from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Port Nelson during September?
What is the average humidity in September in Port Nelson?
How much does it rain in Port Nelson in September?
How warm is the water in September in Port Nelson?
How many hours of daylight does Port Nelson have in September?
When are sunrise and sunset in September in Port Nelson?
How many hours of sunshine does Port Nelson have in September?
What is the month with the highest UV index in Port Nelson?
What is the UV index reading in September in Port Nelson?
Average temperature in September
Port Nelson, The Bahamas
- Average high temperature in September: 28.6°C
The warmest month (with the highest average high temperature) is August (28.9°C).
The month with the lowest average high temperature is March (23.8°C).
- Average low temperature in September: 27.8°C
The months with the highest average low temperature are August and September (27.8°C).
The coldest month (with the lowest average low temperature) is March (22.6°C).
Average pressure in September
Port Nelson, The Bahamas
- Average pressure in September: 1014.2mbar
The month with the highest atmospheric pressure is January (1018.8mbar).
The month with the lowest atmospheric pressure is October (1013.3mbar).
Average wind speed in September
Port Nelson, The Bahamas
- Average wind speed in September: 19.5km/h
The windiest month (with the highest average wind speed) is December (25.6km/h).
The calmest month (with the lowest average wind speed) is June (19.4km/h).
Average humidity in September
Port Nelson, The Bahamas
- Average humidity in September: 76%
The month with the highest relative humidity is June (80%).
The months with the lowest relative humidity are March and November (74%).
Average rainfall in September
Port Nelson, The Bahamas
- Average rainfall in September: 101mm
The wettest month (with the highest rainfall) is October (129mm).
The driest months (with the least rainfall) are February and March (26mm).
Average rainfall days in September
Port Nelson, The Bahamas
- Average rainfall days in September: 21.2 days
The month with the highest number of rainy days is October (23.4 days).
The month with the least rainy days is February (13.8 days).
Average sea temperature in September
Port Nelson, The Bahamas
- Average sea temperature in September: 29.3°C
The best month for swimming (with the highest average sea temperature) is August (29.4°C).
The coldest months (with the lowest average sea temperature) are February and March (24.7°C).
Average daylight in September /
Average sunshine in September
Port Nelson, The Bahamas
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 13h and 36min).
The month with the shortest days is December (Average daylight: 10h and 42min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is April (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 6h and 0min).
Average sunshine days in September
Port Nelson, The Bahamas
- Average sunshine days in September: 5.1 days
The month with the most sunshine days is March (11.3 days).
The month with the least sunshine days is September (5.1 days).
Average UV index in September
Port Nelson, The Bahamas
- 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
Port Nelson, The Bahamas
- Average cloud cover in September: 39
The months with the most cloud cover are January and October (Cloud cover 41).
The month with the least cloud cover is April (Cloud cover 35).
Average visibility in September
Port Nelson, The Bahamas
- 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).
Port Nelson, The Bahamas
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