September weather forecastMancilang, Philippines
September
Weather in September
September, the first month of the autumn in Mancilang, is also a moderately hot month, with an average temperature fluctuating between 27.3°C (81.1°F) and 29.5°C (85.1°F).Temperature
The start of September sees the average high-temperature at a still warm 29.5°C (85.1°F), showing little difference from August's 29.8°C (85.6°F). Mancilang maintains a near steady average temperature of 27.3°C (81.1°F) during the nights of September, demonstrating little drop from daytime highs.Heat index
For September, the heat index is calculated to be a torrid 35°C (95°F). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.Understand that the heat index values take into account shaded locations and mild winds. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', takes into account both air temperature and humidity to illustrate what people actually feel. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. The body is at risk of dehydration and related complications when it fails to shed excessive heat.
Humidity
In Mancilang, the average relative humidity in September is 76%.Rainfall
In September, the rain falls for 19.2 days. Throughout September, 50mm (1.97") of precipitation is accumulated. Throughout the year, there are 254.6 rainfall days, and 1047mm (41.22") of precipitation is accumulated.Sea temperature
In Mancilang, in September, the average water temperature is 29.1°C (84.4°F).Note: Water temperatures from 25°C (77°F) to 29°C (84.2°F) make swimming, diving, and similar activities highly pleasurable and enjoyable for long periods without discomfort.
Daylight
In September, the average length of the day in Mancilang is 12h and 11min.On the first day of the month, sunrise is at 5:34 am and sunset at 5:55 pm. On the last day of September, in Mancilang, sunrise is at 5:33 am and sunset at 5:36 pm PST.
Sunshine
In September, the average sunshine is 8.8h.UV index
The months with the highest UV index in Mancilang, Philippines, are January through December, with an average maximum UV index of 7. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 7 during September translates into the following recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. 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. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Alert! UV radiation becomes sharper due to reflections from sand and water.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mancilang, Philippines
- Average high temperature in September: 29.5°C
The warmest months (with the highest average high temperature) are May and June (30°C).
The month with the lowest average high temperature is February (27.3°C).
- Average low temperature in September: 27.3°C
The month with the highest average low temperature is May (27.9°C).
The coldest month (with the lowest average low temperature) is February (25.7°C).
Average pressure in September
Mancilang, Philippines
- Average pressure in September: 1008.7mbar
The month with the highest atmospheric pressure is February (1011.9mbar).
The months with the lowest atmospheric pressure are July and August (1008.4mbar).
Average wind speed in September
Mancilang, Philippines
- Average wind speed in September: 14.2km/h
The windiest month (with the highest average wind speed) is January (22.9km/h).
The calmest month (with the lowest average wind speed) is May (10.4km/h).
Average humidity in September
Mancilang, Philippines
- Average humidity in September: 76%
The months with the highest relative humidity are January and December (80%).
The month with the lowest relative humidity is June (74%).
Average rainfall in September
Mancilang, Philippines
- Average rainfall in September: 50mm
The wettest month (with the highest rainfall) is November (190mm).
The driest month (with the least rainfall) is April (44mm).
Average rainfall days in September
Mancilang, Philippines
- Average rainfall days in September: 19.2 days
The month with the highest number of rainy days is December (25.7 days).
The month with the least rainy days is August (16.8 days).
Average sea temperature in September
Mancilang, Philippines
- Average sea temperature in September: 29.1°C
The best month for swimming (with the highest average sea temperature) is June (29.8°C).
The coldest month (with the lowest average sea temperature) is February (26.7°C).
Average daylight in September /
Average sunshine in September
Mancilang, Philippines
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 48min).
The month with the shortest days is December (Average daylight: 11h and 30min).
- Average sunshine in September: 8h and 48min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in September
Mancilang, Philippines
- Average sunshine days in September: 9.2 days
The month with the most sunshine days is August (12.9 days).
The month with the least sunshine days is November (2.3 days).
Average UV index in September
Mancilang, Philippines
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in September
Mancilang, Philippines
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is May (Cloud cover 28).
Average visibility in September
Mancilang, Philippines
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





