September weather forecastSilanga, Philippines
September
Weather in September
September, the first month of the autumn in Silanga, is still a warm month, with temperature in the range of an average low of 23.4°C (74.1°F) and an average high of 29.8°C (85.6°F).Temperature
The onset of September brings with it an average high-temperature of a warm 29.8°C (85.6°F), showing a negligible variation from the month before. Silanga experiences an average low-temperature of 23.4°C (74.1°F) in month of September.Heat index
The heat index value for September is estimated at a torrid 38°C (100.4°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.Evaluating the heat index requires understanding its values in the shade and with gentle winds. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is found by incorporating humidity levels into the air temperature measurement. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
Perspiration, followed by sweat evaporation, is the human body's chief method to maintain a balanced temperature. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.
Humidity
In Silanga, the average relative humidity in September is 85%.Rainfall
In Silanga, Philippines, during September, the rain falls for 25 days and regularly aggregates up to 95mm (3.74") of precipitation. Throughout the year, in Silanga, Philippines, there are 250 rainfall days, and 834mm (32.83") of precipitation is accumulated.Sea temperature
In Silanga, in September, the average water temperature is 29.1°C (84.4°F).Note: Water temperature ranging from 25°C (77°F) to 29°C (84.2°F) is seen as very warm and delightful by everyone. During these temperatures, water activities become enjoyable, without causing discomfort for extended periods.
Daylight
In Silanga, the average length of the day in September is 12h and 12min.On the first day of September in Silanga, sunrise is at 5:30 am and sunset at 5:51 pm. On the last day of the month, sunrise is at 5:30 am and sunset at 5:32 pm PST.
Sunshine
In September, the average sunshine is 7.9h.UV index
February through September and November, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for average individuals.Note: A daily maximum UV index of 7 in September translates into the following instructions:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Heads up! UV intensity is amplified by reflections from water and sand.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Silanga, Philippines
- Average high temperature in September: 29.8°C
The warmest month (with the highest average high temperature) is May (31.5°C).
The month with the lowest average high temperature is January (27.7°C).
- Average low temperature in September: 23.4°C
The months with the highest average low temperature are May, June and August (23.8°C).
The coldest months (with the lowest average low temperature) are February and March (22.2°C).
Average pressure in September
Silanga, Philippines
- Average pressure in September: 1008.4mbar
The month with the highest atmospheric pressure is February (1012.1mbar).
The month with the lowest atmospheric pressure is August (1008mbar).
Average wind speed in September
Silanga, Philippines
- Average wind speed in September: 7.2km/h
The windiest month (with the highest average wind speed) is January (9.7km/h).
The calmest months (with the lowest average wind speed) are May and June (5.8km/h).
Average humidity in September
Silanga, Philippines
- Average humidity in September: 85%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April, May and August (82%).
Average rainfall in September
Silanga, Philippines
- Average rainfall in September: 95mm
The wettest month (with the highest rainfall) is June (128mm).
The driest month (with the least rainfall) is February (18mm).
Average rainfall days in September
Silanga, Philippines
- Average rainfall days in September: 25 days
The month with the highest number of rainy days is June (27.8 days).
The month with the least rainy days is February (12.9 days).
Average sea temperature in September
Silanga, Philippines
- Average sea temperature in September: 29.1°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 (26.9°C).
Average daylight in September /
Average sunshine in September
Silanga, Philippines
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 48min).
The month with the shortest days is December (Average daylight: 11h and 24min).
- Average sunshine in September: 7h and 54min
The month with the most sunshine is June (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in September
Silanga, Philippines
- Average sunshine days in September: 3.3 days
The month with the most sunshine days is January (13.4 days).
The month with the least sunshine days is June (1.7 days).
Average UV index in September
Silanga, Philippines
- Average UV index in September: 7
The months with the highest UV index are February, March, April, May, June, July, August, September and November (UV index 7).
The months with the lowest UV index are January, October and December (UV index 6).
Average cloud cover in September
Silanga, Philippines
- Average cloud cover in September: 45
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is May (Cloud cover 40).
Average visibility in September
Silanga, Philippines
- Average visibility in September: 8km
The months with the highest visibility are February, March, May, June, July, August, September and October (8km).
The months with the lowest visibility are January, April, November and December (7km).





