Cat Island
The Bahamas
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Cat Island, The Bahamas

The glorious white sands of the magnificent Cat Island in The Bahamas
The glorious white sands of the magnificent Cat Island in The Bahamas
September, the first month of the autumn, in Cat Island, is still a tropical month, with average temperature varying between 24°C (75.2°F) and 31°C (87.8°F).

Temperature

July through September, with an average high-temperature of 31°C (87.8°F), are the warmest months.

Rainfall

In Cat Island, it is raining for 20 days, with typically 118mm (4.6") of accumulated precipitation. Throughout the year, there are 170 rainfall days, and 950mm (37.4") of precipitation is accumulated.

Sea temperature

July through September, with an average sea temperature of 29°C (84.2°F), are months with the warmest seawater.
Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

In Cat Island, the average length of the day is 12.3h.

Sunshine

In September, the average sunshine in Cat Island is 7h.

UV index

The average daily maximum UV index in September is 10. A UV Index of 8 to 10 symbolizes a very high health vulnerability from the exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 10 transform into the following instructions:
Take extra precautions. Protection against sun damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for 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. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What are the warmest months in Cat Island?

July through September, with an average high-temperature of 31°C (87.8°F), are warmest months in Cat Island, The Bahamas.

What is the temperature in September in Cat Island?

The average high-temperature, in September, in Cat Island, is 31°C (87.8°F), while the average low-temperature is 24°C (75.2°F).

How much does it rain in Cat Island in September?

In Cat Island, in September, it is raining for 20 days, with typically 118mm (4.6") of accumulated precipitation.

When is the sea warmest in Cat Island?

July through September, with an average sea temperature of 29°C (84.2°F), are months with the warmest seawater in Cat Island, The Bahamas.

What is the water temperature in September in Cat Island?

In Cat Island, The Bahamas, the average seawater temperature in September is 29°C (84.2°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

What is the average length of the day in September in Cat Island?

In Cat Island, the average length of the day in September is 12.3h.

How long on average sun shines in September in Cat Island?

In Cat Island, The Bahamas, the average sunshine in September is 7h.

What is the UV index reading in September in Cat Island?

In Cat Island, The Bahamas, the average daily maximum UV index in September is 10. A UV Index estimate of 8 to 10 represents a very high health threat from the exposure to the Sun's UV radiation.
Average temperature in September - Cat Island, The Bahamas
  • Average high temperature in September: 31°C

Warmest months (with the highest average high temperature) are July, August and September (31°C).
Months with the lowest average high temperature are January and February (25°C).

  • Average low temperature in September: 24°C

Months with the highest average low temperature are July and August (25°C).
The coldest month (with the lowest average low temperature) is January (18°C).

Average rainfall in September - Cat Island, The Bahamas
  • Average rainfall in September: 118mm

The wettest month (with the highest rainfall) is October (184mm).
The driest month (with the lowest rainfall) is March (25mm).

Average rainfall days in September - Cat Island, The Bahamas
  • Average rainfall days in September: 20 days

Months with the highest number of rainy days are August, September and October (20 days).
The month with the lowest number of rainy days is April (8 days).

Average sea temperature in September - Cat Island, The Bahamas
  • Average sea temperature in September: 29°C

Best months for swimming (with the highest average sea temperature) are July, August and September (29°C).
Coldest months (with the lowest average sea temperature) are February and March (24°C).

Average daylight in September / Average sunshine in September - Cat Island, The Bahamas
  • Average daylight in September: 12.3h

The month with the longest days is June (Average daylight: 13.6h).
The month with shortest days is December (Average daylight: 10.7h).

  • Average sunshine in September: 7h

Months with most sunshine are March, April, May, July and August (Average sunshine: 8h).
The month with least sunshine is December (Average sunshine: 6h).

Average UV index in September - Cat Island, The Bahamas
  • Average UV index in September: 10

Months with the highest UV index are June and July (UV index 12).
Months with the lowest UV index are January and December (UV index 6).