September weather forecastAmpayon, Philippines
September
Weather in September
September, the first month of the autumn in Ampayon, is still a hot month, with an average temperature fluctuating between 22.8°C (73°F) and 32°C (89.6°F).Temperature
September commences with an average high-temperature of a still tropical 32°C (89.6°F), showing little deviation from August's 32.3°C (90.1°F). Ampayon's nights in September cool down to an average low-temperature of 22.8°C (73°F).Heat index
Throughout September, the heat index is evaluated at a blistering 44°C (111.2°F). Attention: Heat exhaustion and heat cramps are quite likely. Heatstroke becomes a risk with continued exertion.The metrics for the heat index are tailored for both shady environments and light winds. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', measures the perceived warmth when incorporating the humidity present in the air. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.
Humidity
The months with the lowest humidity are May, August and September, with an average relative humidity of 78%.Rainfall
In September, the rain falls for 17.5 days. Throughout September, 59mm (2.32") of precipitation is accumulated. In Ampayon, during the entire year, the rain falls for 221.5 days and collects up to 902mm (35.51") of precipitation.Daylight
The average length of the day in September is 12h and 10min.On the first day of September, sunrise is at 5:28 am and sunset at 5:46 pm. On the last day of the month, sunrise is at 5:25 am and sunset at 5:29 pm PST.
Sunshine
In Ampayon, the average sunshine in September is 8.9h.UV index
March through May, July through November, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: The average daily UV index of 7 in September transforms into the following instructions:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ampayon, Philippines
- Average high temperature in September: 32°C
The warmest month (with the highest average high temperature) is May (32.8°C).
The month with the lowest average high temperature is January (28.9°C).
- Average low temperature in September: 22.8°C
The month with the highest average low temperature is October (23.4°C).
The coldest months (with the lowest average low temperature) are February and March (21.6°C).
Average pressure in September
Ampayon, Philippines
- Average pressure in September: 1009.3mbar
The month with the highest atmospheric pressure is February (1011.5mbar).
The months with the lowest atmospheric pressure are July and August (1009mbar).
Average wind speed in September
Ampayon, Philippines
- Average wind speed in September: 5.1km/h
The windiest months (with the highest average wind speed) are April and September (5.1km/h).
The calmest months (with the lowest average wind speed) are June and November (4.6km/h).
Average humidity in September
Ampayon, Philippines
- Average humidity in September: 78%
The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are May, August and September (78%).
Average rainfall in September
Ampayon, Philippines
- Average rainfall in September: 59mm
The wettest month (with the highest rainfall) is January (112mm).
The driest month (with the least rainfall) is April (50mm).
Average rainfall days in September
Ampayon, Philippines
- Average rainfall days in September: 17.5 days
The month with the highest number of rainy days is June (21.1 days).
The month with the least rainy days is February (15.3 days).
Average daylight in September /
Average sunshine in September
Ampayon, Philippines
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 36min).
The month with the shortest days is December (Average daylight: 11h and 36min).
- Average sunshine in September: 8h and 54min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 7h and 12min).
Average sunshine days in September
Ampayon, Philippines
- Average sunshine days in September: 11.4 days
The month with the most sunshine days is December (12.7 days).
The month with the least sunshine days is June (7.3 days).
Average UV index in September
Ampayon, Philippines
- Average UV index in September: 7
The months with the highest UV index are March, April, May, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February, June and December (UV index 6).
Average cloud cover in September
Ampayon, Philippines
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 49).
The months with the least cloud cover are April, May, August, September and October (Cloud cover 35).
Average visibility in September
Ampayon, Philippines
- Average visibility in September: 9km
The months with the highest visibility are June, August and September (9km).
The months with the lowest visibility are January, February, March, April, May, July, October, November and December (8km).





