December weather forecastPiru, Indonesia
December
Weather in December
The first month of the summer, December, is also a moderately hot month in Piru, Indonesia, with an average temperature fluctuating between 27.9°C (82.2°F) and 29.4°C (84.9°F).Temperature
December, with average temperatures reaching a high of 29.4°C (84.9°F) and a low of 27.9°C (82.2°F), is the warmest month.Heat index
For December, the heat index is calculated to be a hot 34°C (93.2°F). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.Heat index evaluations are typically in the context of light winds and shaded environments. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
Humidity
The months with the lowest humidity are November and December, with an average relative humidity of 74%.Rainfall
In Piru, in December, during 22.5 rainfall days, 101mm (3.98") of precipitation is typically accumulated. In Piru, during the entire year, the rain falls for 244.7 days and collects up to 1223mm (48.15") of precipitation.Sea temperature
With an average sea temperature of 29.8°C (85.6°F), December is the month with the warmest seawater.Note: In any water activity, temperatures between 25°C (77°F) and 29°C (84.2°F) are viewed as magnificent and exceptionally pleasant for prolonged enjoyment.
Daylight
December has the longest days of the year in Piru, with an average of 12h and 18min of daylight.On the first day of the month, sunrise is at 06:07 and sunset at 18:24. On the last day of December, in Piru, sunrise is at 06:21 and sunset at 18:39 WIT.
Sunshine
The average sunshine in December is 8.7h.UV index
January through May, July through December, with an average maximum UV index of 7, are months with the highest UV index in Piru, Indonesia. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 7 during December translates into the following guidance:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Heads up! The reflection of sand and water notably intensifies UV rays from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Piru, Indonesia
- Average high temperature in December: 29.4°C
The warmest month (with the highest average high temperature) is December (29.4°C).
The month with the lowest average high temperature is August (26.6°C).
- Average low temperature in December: 27.9°C
The month with the highest average low temperature is December (27.9°C).
The coldest month (with the lowest average low temperature) is August (25.5°C).
Average pressure in December
Piru, Indonesia
- Average pressure in December: 1007.9mbar
The month with the highest atmospheric pressure is August (1011.1mbar).
The month with the lowest atmospheric pressure is December (1007.9mbar).
Average wind speed in December
Piru, Indonesia
- Average wind speed in December: 10.5km/h
The windiest month (with the highest average wind speed) is July (19.7km/h).
The calmest month (with the lowest average wind speed) is November (8.6km/h).
Average humidity in December
Piru, Indonesia
- Average humidity in December: 74%
The months with the highest relative humidity are July and August (81%).
The months with the lowest relative humidity are November and December (74%).
Average rainfall in December
Piru, Indonesia
- Average rainfall in December: 101mm
The wettest month (with the highest rainfall) is June (168mm).
The driest month (with the least rainfall) is October (40mm).
Average rainfall days in December
Piru, Indonesia
- Average rainfall days in December: 22.5 days
The month with the highest number of rainy days is May (23.6 days).
The month with the least rainy days is September (14.8 days).
Average sea temperature in December
Piru, Indonesia
- Average sea temperature in December: 29.8°C
The best month for swimming (with the highest average sea temperature) is December (29.8°C).
The coldest month (with the lowest average sea temperature) is August (27.6°C).
Average daylight in December /
Average sunshine in December
Piru, Indonesia
- Average daylight in December: 12h and 18min
The month with the longest days is December (Average daylight: 12h and 18min).
The month with the shortest days is June (Average daylight: 11h and 54min).
- Average sunshine in December: 8h and 42min
The month with the most sunshine is November (Average sunshine: 9h and 6min).
The month with the least sunshine is July (Average sunshine: 6h and 6min).
Average sunshine days in December
Piru, Indonesia
- Average sunshine days in December: 7.7 days
The month with the most sunshine days is November (11.5 days).
The months with the least sunshine days are April, June and July (5.3 days).
Average UV index in December
Piru, Indonesia
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April, May, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is June (UV index 6).
Average cloud cover in December
Piru, Indonesia
- Average cloud cover in December: 38
The month with the most cloud cover is July (Cloud cover 58).
The month with the least cloud cover is November (Cloud cover 30).
Average visibility in December
Piru, Indonesia
- Average visibility in December: 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).





