September weather forecastLais, Philippines
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Lais, Philippines, with an average temperature ranging between max 29.9°C (85.8°F) and min 24.1°C (75.4°F).Temperature
The advent of September brings an average high-temperature of a still warm 29.9°C (85.8°F), almost the same as the preceding month. During September, the temperature is averaged to a low of 24.1°C (75.4°F) at night.Heat index
September's mean heat index is estimated at a sweltering 36°C (96.8°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.The standards for the heat index are set for locations in shade and under light breezes. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.
Humidity
September is the least humid month, with an average relative humidity of 76%.Rainfall
In Lais, in September, it is raining for 21.5 days, with typically 43mm (1.69") of accumulated precipitation. Throughout the year, in Lais, there are 244.1 rainfall days, and 805mm (31.69") of precipitation is accumulated.Sea temperature
In Lais, in September, the average water temperature is 29.2°C (84.6°F).Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are regarded as very warm, ensuring all water activities are pleasurable for extended periods without feeling uneasy.
Daylight
In September, the average length of the day is 12h and 10min.On the first day of September, sunrise is at 5:30 am and sunset at 5:44 pm. On the last day of the month, sunrise is at 5:25 am and sunset at 5:29 pm PST.
Sunshine
In Lais, the average sunshine in September is 9h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index in Lais. The months with the lowest UV index are January through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index of 7 during September translates into these guidelines:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Be cautious! Sand and water surfaces make the Sun's UV rays more potent.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lais, Philippines
- Average high temperature in September: 29.9°C
The warmest months (with the highest average high temperature) are May and October (30.1°C).
The month with the lowest average high temperature is January (28.3°C).
- Average low temperature in September: 24.1°C
The month with the highest average low temperature is October (24.7°C).
The coldest months (with the lowest average low temperature) are February and March (23.5°C).
Average pressure in September
Lais, Philippines
- Average pressure in September: 1010mbar
The month with the highest atmospheric pressure is February (1010.7mbar).
The month with the lowest atmospheric pressure is December (1009.1mbar).
Average wind speed in September
Lais, Philippines
- Average wind speed in September: 7.2km/h
The windiest month (with the highest average wind speed) is February (9.2km/h).
The calmest months (with the lowest average wind speed) are May and June (6.4km/h).
Average humidity in September
Lais, Philippines
- Average humidity in September: 76%
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is September (76%).
Average rainfall in September
Lais, Philippines
- Average rainfall in September: 43mm
The wettest month (with the highest rainfall) is May (107mm).
The driest month (with the least rainfall) is February (31mm).
Average rainfall days in September
Lais, Philippines
- Average rainfall days in September: 21.5 days
The month with the highest number of rainy days is May (26.3 days).
The month with the least rainy days is December (14 days).
Average sea temperature in September
Lais, Philippines
- Average sea temperature in September: 29.2°C
The best months for swimming (with the highest average sea temperature) are October and November (29.7°C).
The coldest month (with the lowest average sea temperature) is February (28.2°C).
Average daylight in September /
Average sunshine in September
Lais, Philippines
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 30min).
The month with the shortest days is December (Average daylight: 11h and 48min).
- Average sunshine in September: 9h and 0min
The months with the most sunshine are November and December (Average sunshine: 9h and 6min).
The months with the least sunshine are June and July (Average sunshine: 8h and 12min).
Average sunshine days in September
Lais, Philippines
- Average sunshine days in September: 7.1 days
The month with the most sunshine days is December (15.2 days).
The month with the least sunshine days is May (3.1 days).
Average UV index in September
Lais, 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
Lais, Philippines
- Average cloud cover in September: 35
The months with the most cloud cover are June and July (Cloud cover 42).
The month with the least cloud cover is March (Cloud cover 31).
Average visibility in September
Lais, 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).





