September weather forecast
Dagupan, Philippines

As September comes around, Dagupan starts to emerge from the heavy monsoonal influence. In September, the rainfall recedes significantly to 246mm (9.69"), signalling the beginning of the cessation of the wet season. Despite this decline, humidity remains high and cloud cover is significant. Sunshine hours, however, subtly decrease, marking an end to the extended daylight experienced in the previous months. In many ways, September serves as a closing chapter to the dominant monsoon season in Dagupan.

Temperature

The transition into September in Dagupan shows a subtle variation to a still warm 29.9°C (85.8°F) from August's 29.7°C (85.5°F) in the average high-temperature. Throughout September, Dagupan anticipates an average low-temperature of 22.4°C (72.3°F).

Heat index

The heat index in September is calculated to be a torrid 39°C (102.2°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'real feel' or 'feels like', reflects the blend of air temperature and relative humidity to give a temperature impression. 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. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

The months with the highest humidity are August and September, with an average relative humidity of 84%.

Rainfall

In September, the rain falls for 24.9 days. Throughout September, 246mm (9.69") of precipitation is accumulated. Throughout the year, in Dagupan, there are 183.2 rainfall days, and 1433mm (56.42") of precipitation is accumulated.

Daylight

In September, the average length of the day in Dagupan, Philippines, is 12h and 14min.
On the first day of September in Dagupan, sunrise is at 5:45 am and sunset at 6:11 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 5:48 pm PST.

Sunshine

In September, the average sunshine is 9.1h.

UV index

February through June, August through November, with an average maximum UV index of 7, are months with the highest UV index in Dagupan. A UV Index estimate 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 in September translates into these instructions:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Boost your sun resistance with garments that are densely woven yet spacious.