September weather forecast
Puerto Castilla, Honduras

September ushers in slight relief from rain cosseted August. Yet, it is marked by comparatively increased cloud coverage and reduced sunlight hours. Despite this, the UV index remains consistent, signifying the need for UV protection during daylight activities. While the rain might be trickling away, the climatic constants are the warm sea temperatures and balmy weather, offering tourists continued opportunities for fun-filled expeditions.

Temperature

Puerto Castilla's September weather, with an average high temperature of 29.3°C (84.7°F) and an average low temperature of 27.8°C (82°F), tends to be the warmest of the year.

Heat index

In September, the average heat index is calculated to be a fiery hot 35°C (95°F). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are highly critical to babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.

Humidity

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

Rainfall

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

Sea temperature

September is the month with the warmest seawater in Puerto Castilla, with an average sea temperature of 29.8°C (85.6°F).
Note: 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.

Daylight

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

Sunshine

In Puerto Castilla, 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. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index of 7 during September translates into these guidelines:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Warning! The reflection of sand and water increases the UV dose.