December weather forecast and climate
Diu, India

The first month of the winter, December, is also a moderately hot month in Diu, India, with average temperature varying between 21°C (69.8°F) and 29.2°C (84.6°F).
An excellent water temperature of 26.3°C (79.3°F) and only 0.7 rainfall days, with 2mm (0.08") of accumulated rainfall, makes December a prime for swimming and other water activities.

Temperature

In December, the average high-temperature in Diu is practically the same as in November - a warm 29.2°C (84.6°F). In December, in Diu, the average low-temperature is 21°C (69.8°F).

Heat index

The average heat index is evaluated at 29°C (84.2°F). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'real feel', 'felt air temperature', or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Additional factors like activity, pregnancy, differences in body mass, height, and shape, and wind affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In December, the average relative humidity is 42%.

Rainfall

December is the last month it rains. During 0.7 rainfall days, Diu aggregates 2mm (0.08") of precipitation. In Diu, India, during the entire year, the rain falls for 88.8 days and collects up to 556mm (21.89") of precipitation.

Sea temperature

In Diu, the average seawater temperature is 26.3°C (79.3°F).
Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

The month with the shortest days in Diu, India, is December, with an average of 10.9h of daylight.

Sunshine

The average sunshine in December is 9.9h.

UV index

Months with the lowest UV index are January, July and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to the UV radiation for the average person.
Note: In December, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What is the temperature in December in Diu?

In Diu, in December, the average high-temperature is 29.2°C (84.6°F), and the average low-temperature is 21°C (69.8°F). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), that combines both air temperature and relative humidity, in December is estimated at 29°C (84.2°F).

What is the average humidity in December in Diu?

The average relative humidity in December in Diu, India, is 42%.

What is the last month it rains in Diu?

December is the last month it rains in Diu. During 0.7 rainfall days, in December, Diu aggregates 2mm (0.08") of precipitation.

How warm is the water in December in Diu?

In December, the average sea temperature is 26.3°C (79.3°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

What is the month with the shortest days in Diu?

With an average of 10.9h of daylight, December has the shortest days of the year.

What is the average length of the day in December in Diu?

The average length of the day in December is 10.9h.

How long on average sun shines in December in Diu?

In Diu, India, the average sunshine in December is 9.9h.

What are the months with the lowest UV index in Diu?

Months with the lowest UV index in Diu, India, are January, July and December, with an average maximum UV index of 6.

What is the UV index reading in December in Diu?

In Diu, India, the average daily maximum UV index in December is 6. A UV Index estimate of 6 to 7 represents a high health threat from the exposure to the Sun's UV rays.
Average temperature in December - Diu, India
  • Average high temperature in December: 29.2°C

The warmest month (with the highest average high temperature) is May (36°C).
The month with the lowest average high temperature is January (28.2°C).

  • Average low temperature in December: 21°C

The month with the highest average low temperature is June (28.2°C).
The coldest month (with the lowest average low temperature) is January (19.3°C).

Average pressure in December - Diu, India
  • Average pressure in December: 1013.4mbar

The month with the highest atmospheric pressure is January (1014.5mbar).
The month with the lowest atmospheric pressure is July (1002mbar).

Average wind speed in December - Diu, India
  • Average wind speed in December: 14.6km/h

The windiest month (with the highest average wind speed) is July (25.2km/h).
The calmest month (with the lowest average wind speed) is October (12.3km/h).

Average humidity in December - Diu, India
  • Average humidity in December: 42%

The month with the highest relative humidity is August (82%).
The month with the lowest relative humidity is March (41%).

Average rainfall in December - Diu, India
  • Average rainfall in December: 2mm

The wettest month (with the highest rainfall) is September (152mm).
The driest months (with the least rainfall) are January, February and May (0mm).

Average rainfall days in December - Diu, India
  • Average rainfall days in December: 0.7 days

The month with the highest number of rainy days is July (24.1 days).
The month with the least rainy days is February (0.2 days).

Average sea temperature in December - Diu, India
  • Average sea temperature in December: 26.3°C

The best month for swimming (with the highest average sea temperature) is June (29.4°C).
The coldest month (with the lowest average sea temperature) is February (24.1°C).

Average daylight in December / Average sunshine in December - Diu, India
  • Average daylight in December: 10.9h

The month with the longest days is June (Average daylight: 13.4h).
The month with the shortest days is December (Average daylight: 10.9h).

  • Average sunshine in December: 9.9h

Months with the most sunshine are January, April and May (Average sunshine: 10h).
The month with the least sunshine is July (Average sunshine: 5h).

Average sunshine days in December - Diu, India
  • Average sunshine days in December: 30.1 days

The month with the most sunshine days is January (30.5 days).
The month with the least sunshine days is July (4.5 days).

Average UV index in December - Diu, India
  • Average UV index in December: 6

Months with the highest UV index are April and May (UV index 8).
Months with the lowest UV index are January, July and December (UV index 6).

Average cloud cover in December - Diu, India
  • Average cloud cover in December: 5

The month with the most cloud cover is July (Cloud cover 67).
The month with the least cloud cover is January (Cloud cover 3).

Average visibility in December - Diu, India
  • Average visibility in December: 10km

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).