September weather forecast
Lopez Jaena, Philippines

September, the first month of the autumn in Lopez Jaena, is still a warm month, with temperature in the range of an average high of 29.9°C (85.8°F) and an average low of 25.1°C (77.2°F).

Temperature

With the onset of September, Lopez Jaena's average high-temperature clocks in at a warm 29.9°C (85.8°F), showing a minor fluctuation from the previous month. Lopez Jaena, during September nights, witnesses an average temperature marginally cooler than its daytime highs, at 25.1°C (77.2°F).

Heat index

The heat index for September is estimated at a very hot 37°C (98.6°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. Excessive relative humidity disturbs the body's typical cooling process by reducing evaporation, leading to a decrease in body cooling rate and an increase in the sensation of warmth. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

May, June, August and September, with an average relative humidity of 77%, are the least humid months.

Rainfall

In Lopez Jaena, in September, during 20.3 rainfall days, 66mm (2.6") of precipitation is typically accumulated. Throughout the year, in Lopez Jaena, there are 247.3 rainfall days, and 922mm (36.3") of precipitation is accumulated.

Sea temperature

In Lopez Jaena, in September, the average water temperature is 29.3°C (84.7°F).
Note: Ideal surface water temperatures for any water activity fall between 25°C (77°F) and 29°C (84.2°F), offering maximum enjoyment for lengthened periods.

Daylight

In September, the average length of the day in Lopez Jaena, Philippines, is 12h and 10min.
On the first day of the month, sunrise is at 5:36 am and sunset at 5:53 pm. On the last day of September, in Lopez Jaena, Philippines, sunrise is at 5:33 am and sunset at 5:36 pm PST.

Sunshine

The average sunshine in September is 8.6h.

UV index

January through December, with an average maximum UV index of 7, are months with the highest UV index. The months with the lowest UV index in Lopez Jaena are January through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 7 in September converts into the following recommendations:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Be on guard! The reflective nature of sand and water boosts UV exposure.