Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
With the onset of September, a high-temperature average of a still tropical 30.2°C (86.4°F) emerges, matching that of August. The nighttime temperature, during September, averages of 22.7°C (72.9°F).Heat index
In September, the average heat index is computed to be an extremely hot 40°C (104°F). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.Records show heat index calculations are tailored for shaded regions and mild winds. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.
Humidity
The most humid month is September, with an average relative humidity of 87%.Rainfall
The wettest months are July and September, with an average 130mm (5.12") of rainfall.Daylight
In September, the average length of the day is 12h and 13min.On the first day of September, sunrise is at 5:44 am and sunset at 6:10 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 5:47 pm PST.
Sunshine
The average sunshine in September is 8.2h.UV index
The months with the highest UV index are February through June, August and September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.Note: The daily maximum UV index of 7 in September interprets into the following advice:
Prevent overexposure. Protection from the sun's harmful effects is needed. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What is the most humid month?
What is the average humidity in September?
What is the wettest month?
How many days does it rain in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What are the months with the highest UV index?
What is the UV index intensity in September?
Average temperature in September
Matatalaib, Philippines
- Average high temperature in September: 30.2°C
The warmest month (with the highest average high temperature) is April (33.9°C).
The month with the lowest average high temperature is January (29.2°C).
- Average low temperature in September: 22.7°C
The month with the highest average low temperature is May (24.4°C).
The coldest month (with the lowest average low temperature) is January (20.3°C).
Average pressure in September
Matatalaib, Philippines
- Average pressure in September: 1008.2mbar
The month with the highest atmospheric pressure is February (1013.7mbar).
The month with the lowest atmospheric pressure is August (1007.5mbar).
Average wind speed in September
Matatalaib, Philippines
- Average wind speed in September: 5.2km/h
The windiest month (with the highest average wind speed) is February (7.5km/h).
The calmest month (with the lowest average wind speed) is September (5.2km/h).
Average humidity in September
Matatalaib, Philippines
- Average humidity in September: 87%
The month with the highest relative humidity is September (87%).
The month with the lowest relative humidity is April (71%).
Average rainfall in September
Matatalaib, Philippines
- Average rainfall in September: 130mm
The wettest months (with the highest rainfall) are July and September (130mm).
The driest month (with the least rainfall) is February (22mm).
Average rainfall days in September
Matatalaib, Philippines
- Average rainfall days in September: 19.4 days
The month with the highest number of rainy days is July (21.6 days).
The month with the least rainy days is February (9.3 days).
Average daylight in September /
Average sunshine in September
Matatalaib, Philippines
- Average daylight in September: 12h and 1min
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 12min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is April (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 6h and 42min).
Average sunshine days in September
Matatalaib, Philippines
- Average sunshine days in September: 9.1 days
The month with the most sunshine days is March (16.5 days).
The month with the least sunshine days is July (8.6 days).
Average UV index in September
Matatalaib, Philippines
- Average UV index in September: 7
The months with the highest UV index are February, March, April, May, June, August and September (UV index 7).
The months with the lowest UV index are January, July, October, November and December (UV index 6).
Average cloud cover in September
Matatalaib, Philippines
- Average cloud cover in September: 52
The month with the most cloud cover is August (Cloud cover 56).
The months with the least cloud cover are March and April (Cloud cover 31).
Average visibility in September
Matatalaib, Philippines
- Average visibility in September: 7km
The months with the highest visibility are January, February, March, April and May (9km).
The months with the lowest visibility are July, August and September (7km).
