September weather forecastTandag, Philippines
September
Weather in September
The first month of the autumn, September, is still a tropical month in Tandag, Philippines, with an average temperature varying between 24.3°C (75.7°F) and 30.4°C (86.7°F).Temperature
Tandag registers an average high-temperature of a still tropical 30.4°C (86.7°F) with the arrival of September, showing minor deviation from the preceding month. Tandag's average low-temperature in September is measured at a warm 24.3°C (75.7°F).Heat index
For September, the heat index is estimated at a sweltering 39°C (102.2°F). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.Heat index values are typically calculated for conditions of shade and a light breeze. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', gauges the sensation of temperature factoring in the air's moisture content. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values remain especially vital for babies and toddlers. 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.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.
Humidity
In September, the average relative humidity in Tandag is 80%.Rainfall
The month with the least rainfall is September, when the rain falls for 20.7 days and typically collects 59mm (2.32") of precipitation.Sea temperature
In Tandag, the average seawater temperature in September is 29.4°C (84.9°F).Note: Water activities in temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are pleasurable, without feeling uncomfortable even during extended periods.
Daylight
The average length of the day in September is 12h and 11min.On the first day of September, sunrise is at 5:26 am and sunset at 5:44 pm. On the last day of the month, sunrise is at 5:23 am and sunset at 5:26 pm PST.
Sunshine
In Tandag, the average sunshine in September is 8.7h.UV index
February through December, with an average maximum UV index of 7, are months with the highest UV index in Tandag. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index, 7 during September, leads to the following recommendations:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Alert! Sand and water increase UV exposure due to their reflective properties.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Tandag, Philippines
- Average high temperature in September: 30.4°C
The warmest month (with the highest average high temperature) is August (30.7°C).
The months with the lowest average high temperature are January and February (27.3°C).
- Average low temperature in September: 24.3°C
The months with the highest average low temperature are June and August (24.6°C).
The coldest month (with the lowest average low temperature) is March (23.1°C).
Average pressure in September
Tandag, Philippines
- Average pressure in September: 1009mbar
The month with the highest atmospheric pressure is February (1011.4mbar).
The month with the lowest atmospheric pressure is July (1008.7mbar).
Average wind speed in September
Tandag, Philippines
- Average wind speed in September: 7.2km/h
The windiest month (with the highest average wind speed) is February (11.6km/h).
The calmest months (with the lowest average wind speed) are May, June and September (7.2km/h).
Average humidity in September
Tandag, Philippines
- Average humidity in September: 80%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (79%).
Average rainfall in September
Tandag, Philippines
- Average rainfall in September: 59mm
The wettest month (with the highest rainfall) is January (333mm).
The driest month (with the least rainfall) is September (59mm).
Average rainfall days in September
Tandag, Philippines
- Average rainfall days in September: 20.7 days
The month with the highest number of rainy days is January (28.8 days).
The month with the least rainy days is July (20.4 days).
Average sea temperature in September
Tandag, Philippines
- Average sea temperature in September: 29.4°C
The best months for swimming (with the highest average sea temperature) are June and October (29.8°C).
The coldest months (with the lowest average sea temperature) are January and February (27.7°C).
Average daylight in September /
Average sunshine in September
Tandag, 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 42min
The months with the most sunshine are May and October (Average sunshine: 8h and 48min).
The month with the least sunshine is January (Average sunshine: 6h and 36min).
Average sunshine days in September
Tandag, Philippines
- Average sunshine days in September: 8.1 days
The month with the most sunshine days is July (9.5 days).
The month with the least sunshine days is January (1 days).
Average UV index in September
Tandag, Philippines
- Average UV index in September: 7
The months with the highest UV index are February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is January (UV index 6).
Average cloud cover in September
Tandag, Philippines
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is May (Cloud cover 34).
Average visibility in September
Tandag, Philippines
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).





