September weather forecastSan Marcelino, Philippines
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in San Marcelino, Philippines, with an average temperature varying between 25.3°C (77.5°F) and 28.9°C (84°F).Temperature
San Marcelino registers an average high-temperature of a still warm 28.9°C (84°F) with the arrival of September, showing minor deviation from the preceding month. A minor drop in temperature is observed from daytime highs in San Marcelino during the nights of September, averaging a still warm 25.3°C (77.5°F).Heat index
The heat index value for September is estimated at a sweltering 35°C (95°F). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.The metrics for the heat index are tailored for both shady environments and light winds. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.
Humidity
August and September, with an average relative humidity of 83%, are the most humid months.Rainfall
In San Marcelino, during September, the rain falls for 27.1 days and regularly aggregates up to 296mm (11.65") of precipitation. In San Marcelino, during the entire year, the rain falls for 237.5 days and collects up to 1892mm (74.49") of precipitation.Daylight
In September, the average length of the day in San Marcelino is 12h and 13min.On the first day of September, sunrise is at 5:46 am and sunset at 6:11 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 5:49 pm PST.
Sunshine
In San Marcelino, the average sunshine in September is 8.3h.UV index
February through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 7 in September converts into the following recommendations:
Prevent overexposure. Protection from the sun's harmful effects is needed. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
San Marcelino, Philippines
- Average high temperature in September: 28.9°C
The warmest month (with the highest average high temperature) is May (31.4°C).
The month with the lowest average high temperature is January (28.3°C).
- Average low temperature in September: 25.3°C
The month with the highest average low temperature is May (26.4°C).
The coldest months (with the lowest average low temperature) are January and February (23°C).
Average pressure in September
San Marcelino, Philippines
- Average pressure in September: 1008.2mbar
The month with the highest atmospheric pressure is February (1013.1mbar).
The month with the lowest atmospheric pressure is August (1007.6mbar).
Average wind speed in September
San Marcelino, Philippines
- Average wind speed in September: 10.3km/h
The windiest month (with the highest average wind speed) is January (13.4km/h).
The calmest month (with the lowest average wind speed) is May (8km/h).
Average humidity in September
San Marcelino, Philippines
- Average humidity in September: 83%
The months with the highest relative humidity are August and September (83%).
The months with the lowest relative humidity are March and April (73%).
Average rainfall in September
San Marcelino, Philippines
- Average rainfall in September: 296mm
The wettest month (with the highest rainfall) is August (424mm).
The driest month (with the least rainfall) is February (16mm).
Average rainfall days in September
San Marcelino, Philippines
- Average rainfall days in September: 27.1 days
The month with the highest number of rainy days is July (29.4 days).
The month with the least rainy days is February (8.9 days).
Average daylight in September /
Average sunshine in September
San Marcelino, Philippines
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 18min).
- Average sunshine in September: 8h and 18min
The month with the most sunshine is April (Average sunshine: 11h and 30min).
The month with the least sunshine is January (Average sunshine: 6h and 54min).
Average sunshine days in September
San Marcelino, Philippines
- Average sunshine days in September: 2.2 days
The month with the most sunshine days is January (18.3 days).
The month with the least sunshine days is July (1.5 days).
Average UV index in September
San Marcelino, Philippines
- Average UV index in September: 7
The months with the highest UV index are February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is January (UV index 6).
Average cloud cover in September
San Marcelino, Philippines
- Average cloud cover in September: 46
The month with the most cloud cover is August (Cloud cover 53).
The months with the least cloud cover are February and March (Cloud cover 23).
Average visibility in September
San Marcelino, Philippines
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, October, November and December (10km).
The months with the lowest visibility are June, July, August and September (9km).
