September weather forecastBorbon, Philippines
September
Weather in September
September, the first month of the autumn in Borbon, is also a hot month, with temperature in the range of an average high of 30°C (86°F) and an average low of 26.5°C (79.7°F).Temperature
The advent of September brings an average high-temperature of a still tropical 30°C (86°F), exhibiting minor difference from the previous month. During September, nights in Borbon cool slightly to an average low of 26.5°C (79.7°F).Heat index
September's average heat index is appraised at a torrid 37°C (98.6°F). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.Note that heat index values are valued for light wind and location in the shade. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', arises from combining readings of air temperature and relative moisture content. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.
Humidity
In Borbon, the average relative humidity in September is 76%.Rainfall
In Borbon, in September, it is raining for 23.3 days, with typically 107mm (4.21") of accumulated precipitation. Throughout the year, there are 257.7 rainfall days, and 1413mm (55.63") of precipitation is accumulated.Sea temperature
In Borbon, in September, the average water temperature is 29.2°C (84.6°F).Note: Water temperature ranging from 25°C (77°F) to 29°C (84.2°F) is recognized as warm and pleasant by all, making water activities comfortable and delightful for long durations.
Daylight
In September, the average length of the day is 12h and 11min.On the first day of the month, sunrise is at 5:34 am and sunset at 5:53 pm. On the last day of September, sunrise is at 5:32 am and sunset at 5:35 pm PST.
Sunshine
In Borbon, the average sunshine in September is 8.4h.UV index
The months with the highest UV index in Borbon 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 estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for the average person.Note: An average maximum UV index of 7 in September leads to these recommendations:
Fend off overexposure. Sun protection is vital. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Watch out! Reflections from sand and water can surge UV radiation exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Borbon, Philippines
- Average high temperature in September: 30°C
The warmest month (with the highest average high temperature) is May (31.3°C).
The month with the lowest average high temperature is January (28.2°C).
- Average low temperature in September: 26.5°C
The months with the highest average low temperature are May and June (27.2°C).
The coldest month (with the lowest average low temperature) is February (25.2°C).
Average pressure in September
Borbon, 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
Borbon, Philippines
- Average wind speed in September: 11km/h
The windiest month (with the highest average wind speed) is January (18.1km/h).
The calmest month (with the lowest average wind speed) is May (8.6km/h).
Average humidity in September
Borbon, 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 May (74%).
Average rainfall in September
Borbon, Philippines
- Average rainfall in September: 107mm
The wettest month (with the highest rainfall) is December (187mm).
The driest month (with the least rainfall) is April (56mm).
Average rainfall days in September
Borbon, Philippines
- Average rainfall days in September: 23.3 days
The month with the highest number of rainy days is October (26.5 days).
The month with the least rainy days is February (16.3 days).
Average sea temperature in September
Borbon, Philippines
- Average sea temperature in September: 29.2°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 (26.8°C).
Average daylight in September /
Average sunshine in September
Borbon, Philippines
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 30min).
- Average sunshine in September: 8h and 24min
The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in September
Borbon, Philippines
- Average sunshine days in September: 5.5 days
The month with the most sunshine days is April (10.8 days).
The month with the least sunshine days is October (3.5 days).
Average UV index in September
Borbon, 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
Borbon, Philippines
- Average cloud cover in September: 40
The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is May (Cloud cover 31).
Average visibility in September
Borbon, 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).





