Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
The beginning of December reveals an average high-temperature of a still warm 29°C (84.2°F), showing minimal deviation from the previous month. Ralalar, during December nights, observes a steady temperature, averaging at a still warm 26°C (78.8°F).Heat index
In December, the average heat index is calculated to be a hot 34°C (93.2°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.Heat index evaluations are typically in the context of light winds and shaded environments. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Humidity
In Ralalar, the average relative humidity in December is 78%.Rainfall
In Ralalar, in December, it is raining for 26.8 days, with typically 172mm (6.77") of accumulated precipitation. In Ralalar, during the entire year, the rain falls for 314.3 days and collects up to 2023mm (79.65") of precipitation.Daylight
December has the longest days of the year, with an average of 12h and 24min of daylight.On the first day of December, sunrise is at 05:29 and sunset at 17:51. On the last day of the month, sunrise is at 05:43 and sunset at 18:05 +10.
Sunshine
In December, the average sunshine is 9h.UV index
The months with the highest UV index are January through March, May through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 7 during December translates into these guidelines:
Fend off overexposure. Sun protection is vital. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is December?
What is the average humidity in December?
How many days does it rain in December?
When are the longest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
When is the highest UV index?
How high is the UV index in December?
Average temperature in December
Ralalar, Papua New Guinea
- Average high temperature in December: 29°C
The warmest month (with the highest average high temperature) is May (29.3°C).
The month with the lowest average high temperature is July (28.4°C).
- Average low temperature in December: 26°C
The month with the highest average low temperature is May (26.3°C).
The coldest month (with the lowest average low temperature) is September (25.1°C).
Average pressure in December
Ralalar, Papua New Guinea
- Average pressure in December: 1007.7mbar
The months with the highest atmospheric pressure are August and September (1010mbar).
The month with the lowest atmospheric pressure is December (1007.7mbar).
Average wind speed in December
Ralalar, Papua New Guinea
- Average wind speed in December: 8.7km/h
The windiest month (with the highest average wind speed) is August (13.6km/h).
The calmest month (with the lowest average wind speed) is April (7.5km/h).
Average humidity in December
Ralalar, Papua New Guinea
- Average humidity in December: 78%
The month with the highest relative humidity is July (80%).
The months with the lowest relative humidity are October and November (77%).
Average rainfall in December
Ralalar, Papua New Guinea
- Average rainfall in December: 172mm
The wettest month (with the highest rainfall) is March (226mm).
The driest month (with the least rainfall) is September (109mm).
Average rainfall days in December
Ralalar, Papua New Guinea
- Average rainfall days in December: 26.8 days
The month with the highest number of rainy days is March (27.9 days).
The month with the least rainy days is September (24.4 days).
Average daylight in December /
Average sunshine in December
Ralalar, Papua New Guinea
- Average daylight in December: 12h and 2min
The month with the longest days is December (Average daylight: 12h and 24min).
The month with the shortest days is June (Average daylight: 11h and 54min).
- Average sunshine in December: 9h and 0min
The months with the most sunshine are January and February (Average sunshine: 9h and 42min).
The month with the least sunshine is July (Average sunshine: 6h and 36min).
Average sunshine days in December
Ralalar, Papua New Guinea
- Average sunshine days in December: 3.3 days
The month with the most sunshine days is October (4.4 days).
The month with the least sunshine days is April (1.6 days).
Average UV index in December
Ralalar, Papua New Guinea
- Average UV index in December: 7
The months with the highest UV index are January, February, March, May, June, July, August, September, October, November and December (UV index 7).
The month with the lowest UV index is April (UV index 6).
Average cloud cover in December
Ralalar, Papua New Guinea
- Average cloud cover in December: 39
The month with the most cloud cover is March (Cloud cover 47).
The months with the least cloud cover are May, September, October and November (Cloud cover 36).
Average visibility in December
Ralalar, Papua New Guinea
- Average visibility in December: 10km
The months with the highest visibility are February, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, March and April (9km).
