September weather forecastSalapan, Philippines

Weather in September

September, the first month of the autumn in Salapan, is also a hot month, with an average temperature ranging between max 30.5°C (86.9°F) and min 24.7°C (76.5°F).

Temperature

The unfolding of September shows an average high-temperature of a still hot 30.5°C (86.9°F), indicating a slight variance from August's 30.3°C (86.5°F). In Salapan, the September nights cool down to an average low of 24.7°C (76.5°F).

Heat index

During September, the heat index is estimated at an extremely hot 40°C (104°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is the result of factoring in humidity to the air temperature, indicating perceived warmth. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

August and September, with an average relative humidity of 81%, are the most humid months in Salapan, Philippines.

Rainfall

In Salapan, during September, the rain falls for 19.5 days and regularly aggregates up to 51mm (2.01") of precipitation. In Salapan, during the entire year, the rain falls for 154.1 days and collects up to 342mm (13.46") of precipitation.

Daylight

In September, the average length of the day is 12h and 13min.
On the first day of the month, sunrise is at 5:43 am and sunset at 6:07 pm. On the last day of September, sunrise is at 5:45 am and sunset at 5:46 pm PST.

Sunshine

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

UV index

The months with the highest UV index in Salapan, Philippines, are February through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 7 in September interprets into the following advice:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.