September weather forecast
Calauag, Philippines

The first month of the autumn, September, is still a tropical month in Calauag, Philippines, with an average temperature varying between 30°C (86°F) and 24.9°C (76.8°F).

Temperature

The arrival of September brings an average high-temperature of a still tropical 30°C (86°F), nearly identical to August's 30.5°C (86.9°F). Calauag experiences a consistent average temperature of 24.9°C (76.8°F) throughout the nights in September.

Heat index

The heat index value during September is computed to be a torrid 39°C (102.2°F). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

The average relative humidity in September is 83%.

Rainfall

In Calauag, Philippines, in September, during 21.4 rainfall days, 101mm (3.98") of precipitation is typically accumulated. In Calauag, Philippines, during the entire year, the rain falls for 254.9 days and collects up to 1067mm (42.01") of precipitation.

Sea temperature

In September, the average sea temperature is 28.7°C (83.7°F).
Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are ideal for all water activities, offering enjoyment without causing discomfort over extended periods.

Daylight

In September, the average length of the day is 12h and 13min.
On the first day of the month, sunrise is at 5:38 am and sunset at 6:02 pm. On the last day of September, in Calauag, sunrise is at 5:39 am and sunset at 5:41 pm PST.

Sunshine

In September, the average sunshine in Calauag is 8.3h.

UV index

February through September, with an average maximum UV index of 7, are months with the highest UV index in Calauag. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 7 during September translates into the following guidance:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Opt for tightly woven and loose clothing to enhance protection from the Sun. Be vigilant! The Sun's UV rays get a boost from sand and water reflections.