August weather forecast
Sienna, Philippines

The last month of the summer, August, is also a hot month in Sienna, Philippines, with an average temperature fluctuating between 25.5°C (77.9°F) and 30.3°C (86.5°F).

Temperature

Sienna's average high-temperature in August sits at a still hot 30.3°C (86.5°F), showing little difference from the previous month. Sienna's nighttime temperatures in August display a slight drop from daytime highs, averaging to a warm 25.5°C (77.9°F).

Heat index

Throughout August, the heat index is appraised at a fiery hot 39°C (102.2°F). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
Records show heat index calculations are tailored for shaded regions and mild winds. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

August and September, with an average relative humidity of 81%, are the most humid months in Sienna, Philippines.

Rainfall

In Sienna, Philippines, during August, the rain falls for 19.8 days and regularly aggregates up to 125mm (4.92") of precipitation. In Sienna, during the entire year, the rain falls for 185 days and collects up to 830mm (32.68") of precipitation.

Daylight

In Sienna, the average length of the day in August is 12h and 37min.
On the first day of August, sunrise is at 5:39 am and sunset at 6:25 pm. On the last day of the month, sunrise is at 5:43 am and sunset at 6:08 pm PST.

Sunshine

The average sunshine in August is 8.4h.

UV index

February through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In August, the UV index of 7 transforms into the following advice:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.