September weather forecast
Aguadilla, PR

Weather in September

The first month of the autumn, September, is still a warm month in Aguadilla, Puerto Rico, with an average temperature ranging between max 84.9°F (29.4°C) and min 79.7°F (26.5°C).

Temperature

With an average high-temperature of 84.9°F (29.4°C) and an average low-temperature of 79.7°F (26.5°C), September is the warmest month.

Heat index

In September, the average heat index is appraised at a sweltering 95.4°F (35.2°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'felt air temperature', 'real feel', or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. This effect is individual, with diverse people perceiving weather differently for numerous reasons (differences in body mass, height, and shape, clothing, pregnancy), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. With a lot of moisture in the air, the evaporation process is not as effective, and the body does not cool down as efficiently, creating a perception of overheating. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

In Aguadilla, the average relative humidity in September is 77%.

Rainfall

The month with the most rainfall is September, when the rain falls for 21.4 days and typically aggregates up to 3.9" (99mm) of precipitation.

Ocean temperature

The month with the warmest seawater in Aguadilla, Puerto Rico, is September, with an average ocean temperature of 84.9°F (29.4°C).
Note: For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

In Aguadilla, the average length of the day in September is 12h and 14min.
On the first day of the month, sunrise is at 6:14 am and sunset at 6:43 pm. On the last day of September, in Aguadilla, sunrise is at 6:18 am and sunset at 6:18 pm AST.

Sunshine

In Aguadilla, the average sunshine in September is 9.5h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 7 in September transform into the following instructions:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
[Resources]

FAQ

What is the warmest month in Aguadilla?

September is the warmest month, with an average high-temperature of 84.9°F (29.4°C) and an average low-temperature of 79.7°F (26.5°C).

What is the temperature in September in Aguadilla?

In Aguadilla, in September, the average high-temperature is 84.9°F (29.4°C), and the average low-temperature is 79.7°F (26.5°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in September is appraised at 95.4°F (35.2°C).

What is the average humidity in September in Aguadilla?

In September, the average relative humidity in Aguadilla is 77%.

What is the wettest month in Aguadilla?

September is the month with the most rainfall in Aguadilla, Puerto Rico. Rain falls for 21.4 days and accumulates 3.9" (99mm) of precipitation.

How much does it rain in Aguadilla in September?

In September, in Aguadilla, the rain falls for 21.4 days. Throughout September, 3.9" (99mm) of precipitation is accumulated.

What is the month with the warmest ocean in Aguadilla?

With an average ocean temperature of 84.9°F (29.4°C), September is the month with the warmest seawater.

What is the ocean temperature in September in Aguadilla?

In Aguadilla, the average seawater temperature in September is 84.9°F (29.4°C). Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

How many hours of daylight does Aguadilla have in September?

In September, the average day length in Aguadilla is 12h and 14min.

When are sunrise and sunset in September in Aguadilla?

In September, on the first day of the month, sunrise is at 6:14 am and sunset at 6:43 pm. On the last day of the month, in Aguadilla, Puerto Rico, sunrise is at 6:18 am and sunset at 6:18 pm AST.

How long on average sun shines in September in Aguadilla?

In September, the average sunshine duration in Aguadilla, Puerto Rico, is 9.5h.

What are the months with the highest UV index in Aguadilla?

January through December, with an average maximum UV index of 7, are months with the highest UV index in Aguadilla, Puerto Rico.

What is the month with the lowest UV index in Aguadilla?

January through December, with an average maximum UV index of 7, are months with the lowest UV index in Aguadilla.

How high is the UV index in September in Aguadilla?

In Aguadilla, Puerto Rico, the average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to Sun's UV rays.

Average temperature in September
Aguadilla, PR

Average temperature in September - Aguadilla, PR
  • Average high temperature in September: 84.9°F

The warmest month (with the highest average high temperature) is September (84.9°F).
The month with the lowest average high temperature is March (80.2°F).

  • Average low temperature in September: 79.7°F

The month with the highest average low temperature is August (79.9°F).
The coldest month (with the lowest average low temperature) is March (74.3°F).

[Resources]

Average pressure in September
Aguadilla, PR

Average pressure in September - Aguadilla, PR
  • Average pressure in September: 29.92"Hg

The month with the highest atmospheric pressure is January (30.02"Hg).
The month with the lowest atmospheric pressure is October (29.9"Hg).

[Resources]

Average wind speed in September
Aguadilla, PR

Average wind speed in September - Aguadilla, PR
  • Average wind speed in September: 8.2mph

The windiest month (with the highest average wind speed) is December (11.2mph).
The calmest month (with the lowest average wind speed) is October (7.7mph).

[Resources]

Average humidity in September
Aguadilla, PR

Average humidity in September - Aguadilla, PR
  • Average humidity in September: 77%

The month with the highest relative humidity is June (79%).
The month with the lowest relative humidity is March (75%).

[Resources]

Average rainfall in September
Aguadilla, PR

Average rainfall in September - Aguadilla, PR
  • Average rainfall in September: 3.9"

The wettest month (with the highest rainfall) is September (3.9").
The driest month (with the least rainfall) is January (0.98").

[Resources]

Average rainfall days in September
Aguadilla, PR

Average rainfall days in September - Aguadilla, PR
  • Average rainfall days in September: 21.4 days

The month with the highest number of rainy days is May (24.5 days).
The month with the least rainy days is February (14.4 days).

[Resources]

Average sea temperature in September
Aguadilla, PR

Average sea temperature in September - Aguadilla, PR
  • Average sea temperature in September: 84.9°F

The best month for swimming (with the highest average sea temperature) is September (84.9°F).
The coldest month (with the lowest average sea temperature) is February (79.2°F).

[Resources]

Average daylight in September /
Average sunshine in September
Aguadilla, PR

Average daylight in September / Average sunshine in September - Aguadilla, PR
  • Average daylight in September: 12h and 14min

The month with the longest days is June (Average daylight: 13h and 13min).
The month with the shortest days is December (Average daylight: 11h and 3min).

  • Average sunshine in September: 9h and 30min

The month with the most sunshine is June (Average sunshine: 11h and 6min).
The month with the least sunshine is November (Average sunshine: 7h and 0min).

[Resources]

Average sunshine days in September
Aguadilla, PR

Average sunshine days in September - Aguadilla, PR
  • Average sunshine days in September: 6.5 days

The month with the most sunshine days is January (11.5 days).
The month with the least sunshine days is May (5.1 days).

[Resources]

Average UV index in September
Aguadilla, PR

Average UV index in September - Aguadilla, PR
  • Average UV index in September: 7

The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).

[Resources]

Average cloud cover in September
Aguadilla, PR

Average cloud cover in September - Aguadilla, PR
  • Average cloud cover in September: 22

The month with the most cloud cover is May (Cloud cover 29).
The months with the least cloud cover are January and February (Cloud cover 21).

[Resources]

Average visibility in September
Aguadilla, PR

Average visibility in September - Aguadilla, PR
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location