Weather in Union Island in December 2018

  • 29°C maximum daytime temperature in December in Union Island29
    29°C max day temperature
  • 7 hours of sunshine per day (65% of daylight hours) in December in Union Island7
    7 hours of sunshine per day
  • 18 days with some rainfall in December in Union Island18
    18 days with some rainfall
  • 21°C minimum night-time temperature in December in Union Island21
    21°C min night temperature
  • 11 hours of daylight per day in December in Union Island11
    11 hours of daylight per day
  • High heat & humidity in December in Union IslandH
    High heat & humidity
  • 138 mm monthly rainfall in December in Union Island138
    138 mm of monthly rainfall
  • UV (maximum) index 9 (Very High) in December in Union Island9
    9 (Very High) UV index
  • 28°C sea temperature in December in Union Island28
    28°C sea temperature

Going to Union Island? Find the best month to visit Union Island based on the weather.

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Expect 29°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Union Island in December. Check more long-term weather averages for Union Island in December before you book your next holiday to St Vincent & the Grenadines in 2018/2019.

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More about Union Island

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Metric (°C / mm)  |  Imperial (°F / inches)

Guide to Union Island weather in December

The average maximum daytime temperature in Union Island in December is a warm 29°C (84°F) with high heat & humidity. The average night-time temperature is usually a comfortable 21°C (70°F). There are usually 7 hours of bright sunshine each day, which represents 65% of the 11 hours of daylight.

Expect 138mm (5.4 inches) of rainfall across the whole of December with 18 days with some rain falling. Maximum UV levels will be very high (9 UV index) at midday when the skies are clear.

The average sea temperature in and around Union Island in December is 28°C (82°F).

Union Island sunrise & sunset times for December 2018

Browse the sunrise & sunset times for Union Island in December 2018. Select a month to view Union Island sunrise & sunset times for the next twelve months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Saturday, 1st December 2018 06:12 17:38
Sunday, 2nd December 2018 06:12 17:38
Monday, 3rd December 2018 06:13 17:38
Tuesday, 4th December 2018 06:13 17:39
Wednesday, 5th December 2018 06:14 17:39
Thursday, 6th December 2018 06:14 17:39
Friday, 7th December 2018 06:15 17:40
Saturday, 8th December 2018 06:15 17:40
Sunday, 9th December 2018 06:16 17:40
Monday, 10th December 2018 06:16 17:41
Tuesday, 11th December 2018 06:17 17:41
Wednesday, 12th December 2018 06:17 17:41
Thursday, 13th December 2018 06:18 17:42
Friday, 14th December 2018 06:19 17:42
Saturday, 15th December 2018 06:19 17:43
Sunday, 16th December 2018 06:20 17:43
Monday, 17th December 2018 06:20 17:44
Tuesday, 18th December 2018 06:21 17:44
Wednesday, 19th December 2018 06:21 17:45
Thursday, 20th December 2018 06:22 17:45
Friday, 21st December 2018 06:22 17:46
Saturday, 22nd December 2018 06:23 17:46
Sunday, 23rd December 2018 06:23 17:47
Monday, 24th December 2018 06:24 17:47
Tuesday, 25th December 2018 06:24 17:48
Wednesday, 26th December 2018 06:25 17:48
Thursday, 27th December 2018 06:25 17:49
Friday, 28th December 2018 06:26 17:49
Saturday, 29th December 2018 06:26 17:50
Sunday, 30th December 2018 06:26 17:50
Monday, 31st December 2018 06:27 17:51
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