September weather forecastSapa-Sapa, Philippines
September
Weather in September
September, the first month of the autumn in Sapa-Sapa, is still a warm month, with an average temperature fluctuating between 27.8°C (82°F) and 29°C (84.2°F).Temperature
The introduction of September brings an average high temperature of a still moderately hot 29°C (84.2°F), mirroring the readings of the previous month. During the month of September, Sapa-Sapa identifies an average nighttime low-temperature of 27.8°C (82°F), slightly lower than its daytime counterpart.Heat index
September's mean heat index is estimated at a tropical 33°C (91.4°F). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.In the scope of the heat index, its values resonate with shade and light wind conditions. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', joins air temperature with relative humidity to produce a temperature perception for humans. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Humidity
May, June, September and October, with an average relative humidity of 74%, are the least humid months.Rainfall
The month with the least rainfall is September, when the rain falls for 17.6 days and typically collects 46mm (1.81") of precipitation.Sea temperature
In Sapa-Sapa, in September, the average water temperature is 28.9°C (84°F).Note: Swimming, diving, and other activities in water temperatures between 25°C (77°F) and 29°C (84.2°F) are thought to be quite enjoyable and satisfying for extended periods, with no discomfort.
Daylight
In Sapa-Sapa, the average length of the day in September is 12h and 9min.On the first day of September, sunrise is at 5:52 am and sunset at 6:05 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 5:51 pm PST.
Sunshine
In September, the average sunshine is 10.1h.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 7. January through December, with an average maximum UV index of 7, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: In September, the UV index of 7 transforms into the following advice:
Resist extreme sun exposure. Guarding against solar damage is essential. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Attention! UV radiation is markedly stronger with water and sand reflections.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sapa-Sapa, Philippines
- Average high temperature in September: 29°C
The warmest month (with the highest average high temperature) is May (29.4°C).
The month with the lowest average high temperature is February (27.9°C).
- Average low temperature in September: 27.8°C
The month with the highest average low temperature is May (28.4°C).
The coldest month (with the lowest average low temperature) is February (26.9°C).
Average pressure in September
Sapa-Sapa, Philippines
- Average pressure in September: 1009.3mbar
The month with the highest atmospheric pressure is February (1010.1mbar).
The months with the lowest atmospheric pressure are November and December (1008.6mbar).
Average wind speed in September
Sapa-Sapa, Philippines
- Average wind speed in September: 14.5km/h
The windiest month (with the highest average wind speed) is February (17.3km/h).
The calmest month (with the lowest average wind speed) is May (10km/h).
Average humidity in September
Sapa-Sapa, Philippines
- Average humidity in September: 74%
The months with the highest relative humidity are January, February and March (78%).
The months with the lowest relative humidity are May, June, September and October (74%).
Average rainfall in September
Sapa-Sapa, Philippines
- Average rainfall in September: 46mm
The wettest month (with the highest rainfall) is January (122mm).
The driest month (with the least rainfall) is September (46mm).
Average rainfall days in September
Sapa-Sapa, Philippines
- Average rainfall days in September: 17.6 days
The month with the highest number of rainy days is December (24.2 days).
The month with the least rainy days is September (17.6 days).
Average sea temperature in September
Sapa-Sapa, Philippines
- Average sea temperature in September: 28.9°C
The best months for swimming (with the highest average sea temperature) are May, June, October and November (29.3°C).
The coldest months (with the lowest average sea temperature) are January and February (28°C).
Average daylight in September /
Average sunshine in September
Sapa-Sapa, Philippines
- Average daylight in September: 12h and 6min
The month with the longest days is June (Average daylight: 12h and 24min).
The month with the shortest days is December (Average daylight: 11h and 48min).
- Average sunshine in September: 10h and 6min
The month with the most sunshine is May (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 24min).
Average sunshine days in September
Sapa-Sapa, Philippines
- Average sunshine days in September: 11.5 days
The month with the most sunshine days is May (11.7 days).
The month with the least sunshine days is December (5.8 days).
Average UV index in September
Sapa-Sapa, 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
Sapa-Sapa, Philippines
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 43).
The month with the least cloud cover is May (Cloud cover 32).
Average visibility in September
Sapa-Sapa, 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).





