September weather forecastHalayhay, Philippines
September
Weather in September
The first month of the autumn, September, is still a warm month in Halayhay, Philippines, with an average temperature ranging between max 29.5°C (85.1°F) and min 25.1°C (77.2°F).Temperature
The advent of September signifies a minor shift to an average high-temperature of a still moderately hot 29.5°C (85.1°F), aligning closely with August. In Halayhay, the September nights are characterized by an average low-temperature of 25.1°C (77.2°F), a minor dip from daytime readings.Heat index
During September, the heat index is calculated to be a fiery hot 37°C (98.6°F). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.The metrics for the heat index are tailored for both shady environments and light winds. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.
Humidity
In September, the average relative humidity in Halayhay is 82%.Rainfall
In Halayhay, during September, the rain falls for 28.1 days and regularly aggregates up to 277mm (10.91") of precipitation. Throughout the year, in Halayhay, Philippines, there are 233.6 rainfall days, and 1766mm (69.53") of precipitation is accumulated.Sea temperature
In Halayhay, in September, the average water temperature is 28.4°C (83.1°F).Note: For any water activity, having surface water temperatures from 25°C (77°F) to 29°C (84.2°F) is considered outstanding and highly delightful for lengthened periods.
Daylight
In Halayhay, the average length of the day in September is 12h and 13min.On the first day of September in Halayhay, sunrise is at 5:44 am and sunset at 6:08 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 5:47 pm PST.
Sunshine
The average sunshine in September is 8.3h.UV index
January through June, August through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum daily UV index of 7 during September morphs into the following directions:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. 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. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Halayhay, Philippines
- Average high temperature in September: 29.5°C
The warmest month (with the highest average high temperature) is May (32.3°C).
The month with the lowest average high temperature is January (28.3°C).
- Average low temperature in September: 25.1°C
The month with the highest average low temperature is May (26.5°C).
The coldest month (with the lowest average low temperature) is February (23.6°C).
Average pressure in September
Halayhay, Philippines
- Average pressure in September: 1008.2mbar
The month with the highest atmospheric pressure is February (1013mbar).
The month with the lowest atmospheric pressure is August (1007.7mbar).
Average wind speed in September
Halayhay, Philippines
- Average wind speed in September: 10.3km/h
The windiest month (with the highest average wind speed) is January (15.3km/h).
The calmest month (with the lowest average wind speed) is May (8.3km/h).
Average humidity in September
Halayhay, Philippines
- Average humidity in September: 82%
The month with the highest relative humidity is August (83%).
The month with the lowest relative humidity is April (72%).
Average rainfall in September
Halayhay, Philippines
- Average rainfall in September: 277mm
The wettest month (with the highest rainfall) is August (358mm).
The driest month (with the least rainfall) is February (12mm).
Average rainfall days in September
Halayhay, Philippines
- Average rainfall days in September: 28.1 days
The month with the highest number of rainy days is July (29.8 days).
The month with the least rainy days is February (8.3 days).
Average sea temperature in September
Halayhay, Philippines
- Average sea temperature in September: 28.4°C
The best months for swimming (with the highest average sea temperature) are May and June (29.8°C).
The coldest month (with the lowest average sea temperature) is February (27.1°C).
Average daylight in September /
Average sunshine in September
Halayhay, Philippines
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 18min).
- Average sunshine in September: 8h and 18min
The month with the most sunshine is April (Average sunshine: 11h and 30min).
The month with the least sunshine is January (Average sunshine: 6h and 12min).
Average sunshine days in September
Halayhay, Philippines
- Average sunshine days in September: 1.1 days
The month with the most sunshine days is March (16.8 days).
The month with the least sunshine days is July (0.8 days).
Average UV index in September
Halayhay, Philippines
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, August, September, October, November and December (UV index 7).
The month with the lowest UV index is July (UV index 6).
Average cloud cover in September
Halayhay, Philippines
- Average cloud cover in September: 45
The months with the most cloud cover are July and August (Cloud cover 51).
The month with the least cloud cover is April (Cloud cover 25).
Average visibility in September
Halayhay, Philippines
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, October, November and December (10km).
The months with the lowest visibility are June, July, August and September (9km).





