September weather forecast
Colón, Cuba

September sees a slight decrease in temperatures to a range up to 31.6°C (88.9°F) in Colón, Cuba. The rainfall remains consistent around 95mm (3.74"), and the city revels in the monsoon's final stages. The need for sun protection remains due to the UV index of 7. However, the cooler nights persist, and the city gives a rather charming view with rain-washed streets and architectures. Early catchers of the winter sun can prefer September for travel.

Temperature

As Colón, Cuba, welcomes September, the average high-temperature is noted at a still hot 31.6°C (88.9°F), closely aligning with the preceding month. Colón's average low-temperature in September is measured at a warm 23.3°C (73.9°F).

Heat index

The heat index in September is calculated to be an extremely hot 44°C (111.2°F). Keep on guard: Heat exhaustion and heat cramps are probable. Heatstroke is a possible danger with ongoing physical activity.
One should consider that heat index numbers are for shaded settings and light wind. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

September and October, with an average relative humidity of 82%, are the most humid months in Colón.

Rainfall

In Colón, in September, it is raining for 22.1 days, with typically 95mm (3.74") of accumulated precipitation. In Colón, during the entire year, the rain falls for 181 days and collects up to 640mm (25.2") of precipitation.

Daylight

In September, the average length of the day is 12h and 16min.
On the first day of September, sunrise is at 07:06 and sunset at 19:40. On the last day of the month, sunrise is at 07:15 and sunset at 19:11 CDT.

Sunshine

In September, the average sunshine in Colón is 9h.

UV index

The months with the highest UV index in Colón are April through September, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: In September, the maximum UV index of 7 suggests these recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.