September weather forecast
Guanaja, Honduras

As Guanaja enters the autumn season, September's weather patterns see negligible deviation from those of the previous month. Notwithstanding the constant temperature, sea temperature continues to rise, topping at 29.8°C (85.6°F). It still allows for enjoyable marine activities. Despite the consistency of most climate parameters, the amount of sunshine begins to diminish, signaling the approach of the year-end. An influx of cloud cover, combined with a slight dip in visibility, contributes to a noticeably cooler September compared to August.

Temperature

September is the warmest month, with an average high-temperature of 29.3°C (84.7°F) and an average low-temperature of 27.8°C (82°F).

Heat index

For September, the heat index is estimated at a sweltering 35°C (95°F). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is the result of factoring in humidity to the air temperature, indicating perceived warmth. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly critical for babies and toddlers. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

In Guanaja, the average relative humidity in September is 76%.

Rainfall

In September, in Guanaja, Honduras, the rain falls for 23.4 days. Throughout September, 112mm (4.41") of precipitation is accumulated. In Guanaja, Honduras, during the entire year, the rain falls for 245.1 days and collects up to 1412mm (55.59") of precipitation.

Sea temperature

The month with the warmest seawater in Guanaja is September, with an average sea temperature of 29.8°C (85.6°F).
Note: Water temperature ranging from 25°C (77°F) to 29°C (84.2°F) is recognized as warm and pleasant by all, making water activities comfortable and delightful for long durations.

Daylight

In September, the average length of the day is 12h and 13min.
On the first day of the month, sunrise is at 05:30 and sunset at 17:56. On the last day of September, sunrise is at 05:33 and sunset at 17:33 CST.

Sunshine

In Guanaja, the average sunshine in September is 9.3h.

UV index

February through October and December, with an average maximum UV index of 7, are months with the highest UV index in Guanaja. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: In September, the maximum UV index of 7 suggests these recommendations:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Be careful! The Sun's UV radiation is accentuated by reflecting off sand and water.