September weather forecastAlilem, Philippines
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Alilem, Philippines, with an average temperature fluctuating between 23.3°C (73.9°F) and 29.5°C (85.1°F).Temperature
As September takes hold, the average high-temperature is a still warm 29.5°C (85.1°F), nearly mirroring that of the previous month. In the month of September, Alilem witnesses a consistent average low-temperature of 23.3°C (73.9°F).Heat index
The heat index value during September is evaluated at a sweltering 36°C (96.8°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.Note that heat index values are valued for light wind and location in the shade. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', determines the feeling of heat when you account for the relative humidity. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. 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 especially vital to children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.
Humidity
The months with the highest humidity are July through September, with an average relative humidity of 81%.Rainfall
In Alilem, during September, the rain falls for 26.1 days and regularly aggregates up to 207mm (8.15") of precipitation. Throughout the year, in Alilem, there are 212.6 rainfall days, and 1206mm (47.48") of precipitation is accumulated.Daylight
In September, the average length of the day in Alilem is 12h and 14min.On the first day of the month, sunrise is at 5:44 am and sunset at 6:11 pm. On the last day of September, sunrise is at 5:47 am and sunset at 5:47 pm PST.
Sunshine
In Alilem, Philippines, the average sunshine in September is 9.5h.UV index
The months with the highest UV index are February through November, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In September, a regular UV index of 7 translates into these guidelines:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Alilem, Philippines
- Average high temperature in September: 29.5°C
The warmest month (with the highest average high temperature) is May (31.9°C).
The month with the lowest average high temperature is January (28.5°C).
- Average low temperature in September: 23.3°C
The month with the highest average low temperature is May (24.6°C).
The coldest month (with the lowest average low temperature) is January (20.8°C).
Average pressure in September
Alilem, Philippines
- Average pressure in September: 1008.2mbar
The months with the highest atmospheric pressure are January and February (1014.2mbar).
The month with the lowest atmospheric pressure is August (1007.2mbar).
Average wind speed in September
Alilem, Philippines
- Average wind speed in September: 6.9km/h
The windiest month (with the highest average wind speed) is August (8.8km/h).
The calmest month (with the lowest average wind speed) is November (6.3km/h).
Average humidity in September
Alilem, Philippines
- Average humidity in September: 81%
The months with the highest relative humidity are July, August and September (81%).
The month with the lowest relative humidity is March (70%).
Average rainfall in September
Alilem, Philippines
- Average rainfall in September: 207mm
The wettest month (with the highest rainfall) is August (260mm).
The driest months (with the least rainfall) are January, February and March (11mm).
Average rainfall days in September
Alilem, Philippines
- Average rainfall days in September: 26.1 days
The month with the highest number of rainy days is July (29.3 days).
The month with the least rainy days is February (6.8 days).
Average daylight in September /
Average sunshine in September
Alilem, Philippines
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 13h and 6min).
The month with the shortest days is December (Average daylight: 11h and 6min).
- Average sunshine in September: 9h and 30min
The months with the most sunshine are April and May (Average sunshine: 11h and 30min).
The months with the least sunshine are January and December (Average sunshine: 7h and 30min).
Average sunshine days in September
Alilem, Philippines
- Average sunshine days in September: 2.4 days
The month with the most sunshine days is January (22.1 days).
The month with the least sunshine days is July (1.1 days).
Average UV index in September
Alilem, Philippines
- Average UV index in September: 7
The months with the highest UV index are February, March, April, May, June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January and December (UV index 6).
Average cloud cover in September
Alilem, Philippines
- Average cloud cover in September: 35
The month with the most cloud cover is August (Cloud cover 44).
The months with the least cloud cover are January and February (Cloud cover 16).
Average visibility in September
Alilem, Philippines
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, October, November and December (10km).
The months with the lowest visibility are July, August and September (9km).
