September weather forecast
Puerto Aventuras, Mexico

September in Puerto Aventuras marks the beginning of autumn, signified by a fall in temperature and reduced rainfall. The city moves from the fever of the summer towards a more relaxed autumn climate. Transitioning from September to October, anticipate further decline in temperature and rainfall. A slight decrease in temperature to 30.5°C (86.9°F) is recorded in September compared to August. With gentle breezes and warm sea waters, September offers excellent conditions for sailing and fishing.

Temperature

With September's arrival, Puerto Aventuras notes an average high-temperature of a still tropical 30.5°C (86.9°F), closely following the trend of the preceding month. Puerto Aventuras consistently logs a low temperature averaging a warm 26.4°C (79.5°F) during September, a modest drop from daytime temperatures.

Heat index

For September, the heat index is estimated at a very hot 39°C (102.2°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gauges the sensation of temperature factoring in the air's moisture content. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

In Puerto Aventuras, the average relative humidity in September is 78%.

Rainfall

In Puerto Aventuras, in September, during 25.2 rainfall days, 145mm (5.71") of precipitation is typically accumulated. In Puerto Aventuras, during the entire year, the rain falls for 227.8 days and collects up to 1036mm (40.79") of precipitation.

Sea temperature

The months with the warmest seawater are August through October, with an average sea temperature of 29°C (84.2°F).
Note: For activities such as swimming and diving, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as particularly pleasant and satisfying for prolonged periods without feeling uneasy.

Daylight

In September, the average length of the day is 12h and 15min.
On the first day of the month, sunrise is at 6:33 am and sunset at 7:04 pm. On the last day of September, sunrise is at 6:39 am and sunset at 6:37 pm EST.

Sunshine

In September, the average sunshine is 8.7h.

UV index

The months with the highest UV index are February through October, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: In September, the UV index of 7 transforms into the following advice:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Warning! Sand and water reflections boost the intensity of UV exposure.