September weather forecast
Acapulco, Mexico

September's weather follows August's pattern, albeit with a drop in downpour by 225mm (8.86"). Temperatures across the month show slight decline, but continue to maintain the city's warm tropical atmosphere. Despite the dip, Acapulco’s ocean retains its warm welcoming temperatures, making it perfect for marine ventures. Incoming tourists can look forward to enjoying the city’s attractions between showers. The constant tropical conditions provide a unique charm to the region during this period.

Temperature

Acapulco experiences an average high-temperature of a warm 29.8°C (85.6°F) with the onset of September, subtly varied from August's 30.7°C (87.3°F). Acapulco usually reports an average low-temperature of 24.3°C (75.7°F) during the month of September.

Heat index

The heat index value for September is evaluated at a fiery hot 36°C (96.8°F). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is found by incorporating humidity levels into the air temperature measurement. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. 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.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

The months with the highest humidity in Acapulco, Mexico, are September and October, with an average relative humidity of 77%.

Rainfall

September is the month with the most rainfall. Rain falls for 25.8 days and accumulates 225mm (8.86") of precipitation.

Sea temperature

In September, the average sea temperature in Acapulco is 29.9°C (85.8°F).
Note: A water temperature from 25°C (77°F) to 29°C (84.2°F) is considered very warm and enjoyable, allowing water activities to be pleasant for extended periods without irritation.

Daylight

In Acapulco, the average length of the day in September is 12h and 13min.
On the first day of the month, sunrise is at 6:25 am and sunset at 6:52 pm. On the last day of September, in Acapulco, sunrise is at 6:29 am and sunset at 6:28 pm CST.

Sunshine

The month with the least sunshine is September, with an average of 8.8h of sunshine.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index in Acapulco. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: A maximum UV index of 7 in September translates into the following recommendations:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Attention! UV radiation is markedly stronger with water and sand reflections.