September weather forecast and climate
San Andrés, Colombia

What is the temperature in September in San Andrés?

In September, the average high-temperature is 30°C (86°F), and the average low-temperature is 24°C (75.2°F).

How many days does it rain in September in San Andrés?

In San Andrés, during September, the rain falls for 20 days and regularly aggregates up to 255mm (10") of precipitation.

When is the sea warmest in San Andrés?

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

What is the water temperature in September in San Andrés?

The average seawater temperature, in September, in San Andrés, is 29.4°C (84.9°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.
Average temperature in September - San Andrés, Colombia
  • Average high temperature in September: 30°C

Warmest months (with the highest average high temperature) are March, April and May (31°C).
Months with the lowest average high temperature are January, November and December (29°C).

  • Average low temperature in September: 24°C

Months with the highest average low temperature are April, May, June, July and August (25°C).
Coldest months (with the lowest average low temperature) are January and February (23°C).

Average rainfall in September - San Andrés, Colombia
  • Average rainfall in September: 255mm

The wettest month (with the highest rainfall) is October (264mm).
The driest month (with the lowest rainfall) is March (19mm).

Average rainfall days in September - San Andrés, Colombia
  • Average rainfall days in September: 20 days

The month with the highest number of rainy days is October (21 days).
The month with the lowest number of rainy days is March (7 days).

Average sea temperature in September - San Andrés, Colombia
  • Average sea temperature in September: 29.4°C

The best month for swimming (with the highest average sea temperature) is September (29.4°C).
The coldest month (with the lowest average sea temperature) is February (27°C).

Average daylight in September / Average sunshine in September - San Andrés, Colombia
  • Average daylight in September: 12.2h

The month with the longest days is June (Average daylight: 12.9h).
The month with shortest days is December (Average daylight: 11.4h).

  • Average sunshine in September: 6h

Months with most sunshine are March and April (Average sunshine: 9h).
Months with least sunshine are June, July, September, October and November (Average sunshine: 6).

Average UV index in September - San Andrés, Colombia
  • Average UV index in September: 12

Months with the highest UV index are February, March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 9).

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