September weather forecastBulan, Philippines
September
Weather in September
September, the first month of the autumn in Bulan, is still a warm month, with an average temperature fluctuating between 26.5°C (79.7°F) and 29.4°C (84.9°F).Temperature
Bulan marks the start of September with an average high-temperature of a still warm 29.4°C (84.9°F), hinting at a slight fluctuation from August's 29.5°C (85.1°F). The temperature during September nights demonstrates a small drop from the daytime highs, settling to an average of 26.5°C (79.7°F).Heat index
September's average heat index is calculated to be a very hot 36°C (96.8°F). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.Keep in mind the heat index values are meant for areas in shade and with light wind. Heat index values may be hiked up by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. When body heat isn't effectively managed, risks of dehydration and overheating amplify.
Humidity
The average relative humidity in September is 79%.Rainfall
In Bulan, during September, the rain falls for 20.5 days and regularly aggregates up to 63mm (2.48") of precipitation. Throughout the year, there are 198.4 rainfall days, and 562mm (22.13") of precipitation is accumulated.Sea temperature
In September, the average sea temperature in Bulan is 28.9°C (84°F).Note: For any water activity, surface water temperatures from 25°C (77°F) to 29°C (84.2°F) are deemed perfect and extremely pleasing for enduring enjoyment.
Daylight
In Bulan, the average length of the day in September is 12h and 12min.On the first day of the month, sunrise is at 5:33 am and sunset at 5:55 pm. On the last day of September, in Bulan, sunrise is at 5:33 am and sunset at 5:35 pm PST.
Sunshine
In September, the average sunshine is 8.2h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index. January through December, with an average maximum UV index of 7, are months with the lowest UV index in Bulan. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.Note: In September, a daily maximum UV index of 7 leads to the following instructions:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Attention! UV radiation is markedly stronger with water and sand reflections.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bulan, Philippines
- Average high temperature in September: 29.4°C
The warmest month (with the highest average high temperature) is May (30.9°C).
The month with the lowest average high temperature is January (27.1°C).
- Average low temperature in September: 26.5°C
The month with the highest average low temperature is May (27.4°C).
The coldest month (with the lowest average low temperature) is February (24.8°C).
Average pressure in September
Bulan, Philippines
- Average pressure in September: 1008.2mbar
The month with the highest atmospheric pressure is February (1012.6mbar).
The month with the lowest atmospheric pressure is August (1007.8mbar).
Average wind speed in September
Bulan, Philippines
- Average wind speed in September: 15.1km/h
The windiest month (with the highest average wind speed) is January (22.6km/h).
The calmest month (with the lowest average wind speed) is May (12km/h).
Average humidity in September
Bulan, Philippines
- Average humidity in September: 79%
The months with the highest relative humidity are January and December (82%).
The months with the lowest relative humidity are May and June (77%).
Average rainfall in September
Bulan, Philippines
- Average rainfall in September: 63mm
The wettest month (with the highest rainfall) is July (80mm).
The driest month (with the least rainfall) is February (14mm).
Average rainfall days in September
Bulan, Philippines
- Average rainfall days in September: 20.5 days
The month with the highest number of rainy days is July (24.3 days).
The month with the least rainy days is February (9.2 days).
Average sea temperature in September
Bulan, Philippines
- Average sea temperature in September: 28.9°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
Bulan, Philippines
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 24min).
- Average sunshine in September: 8h and 12min
The month with the most sunshine is May (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in September
Bulan, Philippines
- Average sunshine days in September: 7.5 days
The month with the most sunshine days is March (19 days).
The month with the least sunshine days is July (5.3 days).
Average UV index in September
Bulan, 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
Bulan, Philippines
- Average cloud cover in September: 41
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is May (Cloud cover 27).
Average visibility in September
Bulan, 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).
