September weather forecastArimbay, Philippines
September
Weather in September
September, the first month of the autumn in Arimbay, is still a warm month, with an average temperature fluctuating between 29.4°C (84.9°F) and 25.3°C (77.5°F).Temperature
With the onset of September, Arimbay's average high-temperature clocks in at a still moderately hot 29.4°C (84.9°F), showing a minor fluctuation from the previous month. September nights register a minor temperature decline, steadying at a still moderately hot 25.3°C (77.5°F).Heat index
September's mean heat index is estimated at a torrid 36°C (96.8°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.Heat index details are generally centered around shaded locations and a mild breeze. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.
Humidity
In September, the average relative humidity is 82%.Rainfall
In Arimbay, in September, during 22.7 rainfall days, 142mm (5.59") of precipitation is typically accumulated. In Arimbay, during the entire year, the rain falls for 253 days and collects up to 1276mm (50.24") of precipitation.Daylight
In September, the average length of the day is 12h and 13min.On the first day of the month, sunrise is at 5:33 am and sunset at 5:56 pm. On the last day of September, sunrise is at 5:34 am and sunset at 5:35 pm PST.
Sunshine
In Arimbay, Philippines, the average sunshine in September is 8h.UV index
The months with the highest UV index are February through November, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.Note: In September, the UV index of 7 transforms into the following advice:
Resist extreme sun exposure. Guarding against solar damage is essential. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Arimbay, Philippines
- Average high temperature in September: 29.4°C
The warmest month (with the highest average high temperature) is May (30.9°C).
The month with the lowest average high temperature is January (26.8°C).
- Average low temperature in September: 25.3°C
The month with the highest average low temperature is June (25.9°C).
The coldest month (with the lowest average low temperature) is February (23.5°C).
Average pressure in September
Arimbay, Philippines
- Average pressure in September: 1008.1mbar
The month with the highest atmospheric pressure is February (1012.9mbar).
The month with the lowest atmospheric pressure is August (1007.7mbar).
Average wind speed in September
Arimbay, Philippines
- Average wind speed in September: 11km/h
The windiest month (with the highest average wind speed) is January (15.5km/h).
The calmest month (with the lowest average wind speed) is May (8.5km/h).
Average humidity in September
Arimbay, Philippines
- Average humidity in September: 82%
The months with the highest relative humidity are January and December (84%).
The month with the lowest relative humidity is May (78%).
Average rainfall in September
Arimbay, Philippines
- Average rainfall in September: 142mm
The wettest month (with the highest rainfall) is December (212mm).
The driest month (with the least rainfall) is April (27mm).
Average rainfall days in September
Arimbay, Philippines
- Average rainfall days in September: 22.7 days
The month with the highest number of rainy days is December (25.8 days).
The month with the least rainy days is April (15.3 days).
Average daylight in September /
Average sunshine in September
Arimbay, Philippines
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 54min).
The month with the shortest days is December (Average daylight: 11h and 24min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is May (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in September
Arimbay, Philippines
- Average sunshine days in September: 6.4 days
The month with the most sunshine days is May (12.8 days).
The month with the least sunshine days is December (3.1 days).
Average UV index in September
Arimbay, Philippines
- Average UV index in September: 7
The months with the highest UV index are February, March, April, May, June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January and December (UV index 6).
Average cloud cover in September
Arimbay, Philippines
- Average cloud cover in September: 42
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is May (Cloud cover 29).
Average visibility in September
Arimbay, 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).





