Island Harbour
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Island Harbour Weather in December

Thinking of visiting Island Harbour in December? Expect high temperatures reaching 28°C (82°F) during the day, dropping to 25°C (77°F) at night, and note that quite a bit of rainfall is likely.

Rainfall in Island Harbour in December

You can expect rain on roughly 20 days based on historical data, averaging 60 mm (2.4 in) for the month. With rain spread across many days but low totals, showers are typically short and light rather than heavy.

Temperature in Island Harbour in December

If you're visiting Island Harbour in December, expect excellent temperatures with highs of 28°C (82°F) and overnight lows of 25°C (77°F). This kind of day-to-night contrast is typical for this time of year. With overnight lows of 25°C (77°F), evenings and nights remain warm. Light clothing and an open window or fan can help you sleep comfortably.

Sunshine in Island Harbour in December

The month enjoys around 248 hours of sunshine, creating mostly sunny days with good weather conditions.

So this is a great month to visit if you prefer dry days with pleasant temperatures.

Island Harbour Temperature in December

Min Temperature
25°C (77°F)
Max Temperature
28°C (82°F)
Chance of Rain
67%
Precipitation
60 mm (2.4 in)
Rainy days
20 days
Humidity
77% *
Sunshine
248 hours *
Percentage Sunshine
71% *
* Data from: Sint Maarten, Sint Maarten (25 KM, 16 Miles).

Island Harbour Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Island Harbour - and find the best time to visit.

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Island Harbour typically stay consistent throughout December, with daily highs averaging around 28°C (82°F). Nights are warm, with lows around 24°C (75°F).

Average temperatures in December

Historical weather records for Island Harbour in December

Browse day-by-day weather records for Island Harbour spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Island Harbour historical weather extremes in December

Our historical data for Island Harbour spans 1976 to 2025, revealing these weather extremes.

  • The hottest December day on record in Island Harbour reached 32°C (90°F) (December 1, 1999).
  • Island Harbour experienced its chilliest December day on December 2, 2005, reaching only 25°C (77°F).
  • Nighttime temperatures dropped to 20°C (68°F) on December 1, 2005, marking the coldest December night on record.

Best Places in Anguilla in December

Find out more about the weather in Anguilla and which places have the best travel conditions in this month. See all of Anguilla in December →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Island Harbour in December

Warm but pleasant conditions in Island Harbour in December. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Wet weather is likely, so pack waterproof gear for multiple rainy days. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Island Harbour in December

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Swimming
    9/10
  • Cycling
    8/10
  • Walking
    8/10
  • Camping
    8/10
  • Outdoor sports
    8/10

Island Harbour 3-Day Forecast

More climate data for Island Harbour

Popular in December

Where to go in December - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.