September weather forecastAltavas, Philippines
September
Weather in September
September, the first month of the autumn in Altavas, is also a hot month, with an average temperature ranging between min 24.3°C (75.7°F) and max 30.3°C (86.5°F).Temperature
The shift into September uncovers an average high-temperature of a still tropical 30.3°C (86.5°F), subtly different from the previous month. The average low-temperature during September nights is a moderately hot 24.3°C (75.7°F).Heat index
The heat index for September is evaluated at a very hot 39°C (102.2°F). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.In terms of the heat index, values are set with light wind and shade conditions in mind. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', comes about by integrating the temperature readings with the humidity levels. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.
Humidity
In September, the average relative humidity is 80%.Rainfall
In September, the rain falls for 19.8 days. Throughout September, 64mm (2.52") of precipitation is accumulated. Throughout the year, there are 276.3 rainfall days, and 1225mm (48.23") of precipitation is accumulated.Daylight
In Altavas, the average length of the day in September is 12h and 11min.On the first day of September, sunrise is at 5:39 am and sunset at 6:00 pm. On the last day of the month, sunrise is at 5:39 am and sunset at 5:41 pm PST.
Sunshine
In September, the average sunshine is 8.3h.UV index
The months with the highest UV index are March through November, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 7 during September translates into the following directions:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Altavas, Philippines
- Average high temperature in September: 30.3°C
The warmest month (with the highest average high temperature) is May (31.8°C).
The month with the lowest average high temperature is January (27°C).
- Average low temperature in September: 24.3°C
The month with the highest average low temperature is May (25.5°C).
The coldest months (with the lowest average low temperature) are January and February (23.3°C).
Average pressure in September
Altavas, Philippines
- Average pressure in September: 1008.8mbar
The month with the highest atmospheric pressure is February (1012mbar).
The month with the lowest atmospheric pressure is July (1008.4mbar).
Average wind speed in September
Altavas, Philippines
- Average wind speed in September: 9.4km/h
The windiest month (with the highest average wind speed) is January (15.7km/h).
The calmest month (with the lowest average wind speed) is June (8km/h).
Average humidity in September
Altavas, Philippines
- Average humidity in September: 80%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is May (75%).
Average rainfall in September
Altavas, Philippines
- Average rainfall in September: 64mm
The wettest month (with the highest rainfall) is December (185mm).
The driest month (with the least rainfall) is April (52mm).
Average rainfall days in September
Altavas, Philippines
- Average rainfall days in September: 19.8 days
The month with the highest number of rainy days is January (26.9 days).
The month with the least rainy days is September (19.8 days).
Average daylight in September /
Average sunshine in September
Altavas, 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 18min
The month with the most sunshine is May (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in September
Altavas, Philippines
- Average sunshine days in September: 8.1 days
The month with the most sunshine days is August (9.1 days).
The month with the least sunshine days is January (2.1 days).
Average UV index in September
Altavas, Philippines
- Average UV index in September: 7
The months with the highest UV index are March, April, May, June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February and December (UV index 6).
Average cloud cover in September
Altavas, Philippines
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is May (Cloud cover 30).
Average visibility in September
Altavas, 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).
