September weather forecastAparri, Philippines
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Aparri, Philippines, with an average temperature ranging between min 25.5°C (77.9°F) and max 29.9°C (85.8°F).Temperature
The onset of September manifests an average high-temperature of a moderately hot 29.9°C (85.8°F), demonstrating a minor variation from the preceding month. Aparri welcomes an average low temperature of 25.5°C (77.9°F) in September, a gentle shift from the day's high.Heat index
September's mean heat index is appraised at a very hot 38°C (100.4°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.Heat index's context suggests values are appropriate for shady areas and slight breezes. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', shows a temperature sensation when both heat and moisture conditions are combined. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.
Humidity
The average relative humidity in September is 81%.Rainfall
In Aparri, in September, it is raining for 24.9 days, with typically 182mm (7.17") of accumulated precipitation. In Aparri, during the entire year, the rain falls for 284.5 days and collects up to 1949mm (76.73") of precipitation.Daylight
The average length of the day in September is 12h and 15min.On the first day of September in Aparri, sunrise is at 5:38 am and sunset at 6:07 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 5:42 pm PST.
Sunshine
In Aparri, the average sunshine in September is 9.3h.UV index
March through September, 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 exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 7 during September translates into these guidelines:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Aparri, Philippines
- Average high temperature in September: 29.9°C
The warmest month (with the highest average high temperature) is June (31.5°C).
The month with the lowest average high temperature is January (24.8°C).
- Average low temperature in September: 25.5°C
The month with the highest average low temperature is June (26°C).
The coldest month (with the lowest average low temperature) is January (21.5°C).
Average pressure in September
Aparri, Philippines
- Average pressure in September: 1007.9mbar
The month with the highest atmospheric pressure is January (1015.6mbar).
The month with the lowest atmospheric pressure is August (1006.5mbar).
Average wind speed in September
Aparri, Philippines
- Average wind speed in September: 10.5km/h
The windiest month (with the highest average wind speed) is December (16.3km/h).
The calmest month (with the lowest average wind speed) is June (9.1km/h).
Average humidity in September
Aparri, Philippines
- Average humidity in September: 81%
The month with the highest relative humidity is December (86%).
The months with the lowest relative humidity are May, June and July (79%).
Average rainfall in September
Aparri, Philippines
- Average rainfall in September: 182mm
The wettest month (with the highest rainfall) is October (269mm).
The driest month (with the least rainfall) is March (57mm).
Average rainfall days in September
Aparri, Philippines
- Average rainfall days in September: 24.9 days
The month with the highest number of rainy days is August (27.1 days).
The month with the least rainy days is March (18.8 days).
Average daylight in September /
Average sunshine in September
Aparri, Philippines
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 6min).
- Average sunshine in September: 9h and 18min
The month with the most sunshine is June (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 3h and 42min).
Average sunshine days in September
Aparri, Philippines
- Average sunshine days in September: 2.9 days
The month with the most sunshine days is March (9.7 days).
The month with the least sunshine days is August (1.7 days).
Average UV index in September
Aparri, Philippines
- Average UV index in September: 7
The months with the highest UV index are March, April, May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 5).
Average cloud cover in September
Aparri, Philippines
- Average cloud cover in September: 35
The month with the most cloud cover is December (Cloud cover 67).
The months with the least cloud cover are May and June (Cloud cover 29).
Average visibility in September
Aparri, Philippines
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June and July (10km).
The months with the lowest visibility are August, September, October, November and December (9km).
