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 sea temperature 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
Weather in December
Temperature
With December's arrival, Port Blair's weather records an average high-temperature of a still warm 28.2°C (82.8°F), marking little difference from November's 29.2°C (84.6°F). Port Blair sustains a near constant temperature throughout December, with nighttime averages of 26.8°C (80.2°F).Heat index
For December, the heat index is calculated to be a hot 32°C (89.6°F). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.The heat index's values are generally associated with conditions in shade and light breezes. 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 'felt air temperature' or 'real feel', binds temperature metrics with humidity values to give a sense of the actual warmth. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical 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
In December, the average relative humidity in Port Blair, India, is 75%.Rainfall
In December, the rain falls for 16.1 days. Throughout December, 126mm (4.96") of precipitation is accumulated. In Port Blair, during the entire year, the rain falls for 240.3 days and collects up to 1806mm (71.1") of precipitation.Sea temperature
In Port Blair, the average seawater temperature in December is 28.4°C (83.1°F).Note: Water temperature ranging between 25°C (77°F) and 29°C (84.2°F) is considered very warm and pleasing for everyone. It allows for enjoyable water activities over extended periods without discomfort.
Daylight
The month with the shortest days in Port Blair is December, with an average of 11h and 30min of daylight.On the first day of December, sunrise is at 5:23 am and sunset at 4:53 pm. On the last day of the month, sunrise is at 5:38 am and sunset at 5:05 pm IST.
Sunshine
In December, the average sunshine is 8.9h.UV index
January through May, October through December, with an average maximum UV index of 7, are months with the highest UV index in Port Blair. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In December, a daily maximum UV index of 7 leads to the following instructions:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Beware! Reflecting off water and sand, UV rays are much stronger.
Frequently asked questions
Is it hot in Port Blair during December?
What is the average humidity in December in Port Blair?
How much does it rain in Port Blair in December?
How warm is the water in December in Port Blair?
What is the month with the shortest days in Port Blair?
How many hours of daylight does Port Blair have in December?
When are sunrise and sunset in December in Port Blair?
How many hours of sunshine does Port Blair have in December?
When is the highest UV index in Port Blair?
How high is the UV index in December in Port Blair?
Average temperature in December
Port Blair, India
- Average high temperature in December: 28.2°C
The warmest months (with the highest average high temperature) are April and May (30.1°C).
The month with the lowest average high temperature is January (27.9°C).
- Average low temperature in December: 26.8°C
The month with the highest average low temperature is May (28.8°C).
The coldest months (with the lowest average low temperature) are January and February (26.3°C).
Average pressure in December
Port Blair, India
- Average pressure in December: 1010.7mbar
The month with the highest atmospheric pressure is January (1011.8mbar).
The month with the lowest atmospheric pressure is June (1006.9mbar).
Average wind speed in December
Port Blair, India
- Average wind speed in December: 20.2km/h
The windiest month (with the highest average wind speed) is June (28.5km/h).
The calmest month (with the lowest average wind speed) is April (9.6km/h).
Average humidity in December
Port Blair, India
- Average humidity in December: 75%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is March (70%).
Average rainfall in December
Port Blair, India
- Average rainfall in December: 126mm
The wettest month (with the highest rainfall) is September (266mm).
The driest month (with the least rainfall) is February (15mm).
Average rainfall days in December
Port Blair, India
- Average rainfall days in December: 16.1 days
The month with the highest number of rainy days is July (29.6 days).
The month with the least rainy days is February (3.8 days).
Average sea temperature in December
Port Blair, India
- Average sea temperature in December: 28.4°C
The best months for swimming (with the highest average sea temperature) are April and May (30.3°C).
The coldest month (with the lowest average sea temperature) is January (27.8°C).
Average daylight in December /
Average sunshine in December
Port Blair, India
- Average daylight in December: 11h and 3min
The month with the longest days is June (Average daylight: 12h and 48min).
The month with the shortest days is December (Average daylight: 11h and 30min).
- Average sunshine in December: 8h and 5min
The month with the most sunshine is February (Average sunshine: 9h and 54min).
The months with the least sunshine are June and September (Average sunshine: 6h and 54min).
Average sunshine days in December
Port Blair, India
- Average sunshine days in December: 13.5 days
The month with the most sunshine days is February (23.2 days).
The month with the least sunshine days is September (0.6 days).
Average UV index in December
Port Blair, India
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April, May, October, November and December (UV index 7).
The months with the lowest UV index are June, July, August and September (UV index 6).
Average cloud cover in December
Port Blair, India
- Average cloud cover in December: 31
The months with the most cloud cover are June and September (Cloud cover 53).
The month with the least cloud cover is February (Cloud cover 12).
Average visibility in December
Port Blair, India
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, October, November and December (10km).
The months with the lowest visibility are May, June, July, August and September (9km).
Port Blair, India
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