September weather forecastSanta Monica, Philippines
September weather forecast for Santa Monica, Philippines: The first month of the autumn, September, is also a moderately hot month in Santa Monica, Philippines, with an average temperature varying between 29.2°C (84.6°F) and 26.9°C (80.4°F). Santa Monica experiences a steady nighttime temperature of 26.9°C (80.4°F) throughout the month of September.
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Santa Monica, Philippines, with an average temperature varying between 29.2°C (84.6°F) and 26.9°C (80.4°F).Temperature
Santa Monica measures an average high-temperature of a still moderately hot 29.2°C (84.6°F) in September, nearly consistent with the preceding month. Santa Monica experiences a steady nighttime temperature of 26.9°C (80.4°F) throughout the month of September.Heat index
In September, the heat index is estimated at a hot 34°C (93.2°F). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.In reference to the heat index, it's for places in shade and with a slight wind. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Humidity
June, August and September, with an average relative humidity of 75%, are the least humid months.Rainfall
In Santa Monica, during September, the rain falls for 21.3 days and regularly aggregates up to 71mm (2.8") of precipitation. In Santa Monica, during the entire year, the rain falls for 257.2 days and collects up to 1339mm (52.72") of precipitation.Sea temperature
In September, the average sea temperature is 29.4°C (84.9°F).Note: Ideal surface water temperatures for any water activity fall between 25°C (77°F) and 29°C (84.2°F), offering maximum enjoyment for lengthened periods.
Daylight
The average length of the day in September is 12h and 11min.On the first day of the month, sunrise is at 5:26 am and sunset at 5:45 pm. On the last day of September, sunrise is at 5:24 am and sunset at 5:27 pm PST.
Sunshine
The average sunshine in September is 8.6h.UV index
January through September, November and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 7 during September translates into these guidelines:
Stay clear of intense sun exposure. Solar protection is of utmost significance. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Watch out! Reflections from sand and water can surge UV radiation exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Santa Monica, Philippines
- Average high temperature in September: 29.2°C
The warmest month (with the highest average high temperature) is May (29.9°C).
The month with the lowest average high temperature is February (27.3°C).
- Average low temperature in September: 26.9°C
The month with the highest average low temperature is May (27.2°C).
The coldest month (with the lowest average low temperature) is February (25.5°C).
Average pressure in September
Santa Monica, Philippines
- Average pressure in September: 1008.8mbar
The month with the highest atmospheric pressure is February (1011.6mbar).
The months with the lowest atmospheric pressure are July and August (1008.6mbar).
Average wind speed in September
Santa Monica, Philippines
- Average wind speed in September: 16km/h
The windiest month (with the highest average wind speed) is January (19.4km/h).
The calmest month (with the lowest average wind speed) is June (11.4km/h).
Average humidity in September
Santa Monica, Philippines
- Average humidity in September: 75%
The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are June, August and September (75%).
Average rainfall in September
Santa Monica, Philippines
- Average rainfall in September: 71mm
The wettest month (with the highest rainfall) is January (268mm).
The driest month (with the least rainfall) is May (48mm).
Average rainfall days in September
Santa Monica, Philippines
- Average rainfall days in September: 21.3 days
The month with the highest number of rainy days is January (26.7 days).
The month with the least rainy days is May (16.4 days).
Average sea temperature in September
Santa Monica, Philippines
- Average sea temperature in September: 29.4°C
The best months for swimming (with the highest average sea temperature) are June and October (29.8°C).
The coldest month (with the lowest average sea temperature) is January (27.6°C).
Average daylight in September /
Average sunshine in September
Santa Monica, Philippines
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 12h and 42min).
The month with the shortest days is December (Average daylight: 11h and 36min).
- Average sunshine in September: 8h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 5h and 48min).
Average sunshine days in September
Santa Monica, Philippines
- Average sunshine days in September: 7.4 days
The month with the most sunshine days is May (11.9 days).
The month with the least sunshine days is January (2.5 days).
Average UV index in September
Santa Monica, Philippines
- Average UV index in September: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, November and December (UV index 7).
The month with the lowest UV index is October (UV index 6).
Average cloud cover in September
Santa Monica, Philippines
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is May (Cloud cover 28).
Average visibility in September
Santa Monica, Philippines
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).





