Santiago Weather in December
December in Santiago sees daytime temperatures around 29°C (84°F) and lows of 19°C (66°F) at night. The perfect weather makes it a good time to visit.
Rainfall in Santiago in December
The climate data from previous years indicates about 14 days of rain, averaging 49 mm (1.9 in) for the month. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.
Temperature in Santiago in December
Santiago in December has perfect weather. Days reach 29°C (84°F) and nights cool to 19°C (66°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With overnight lows of 19°C (66°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.
Sunshine in Santiago in December
The city usually sees around 202 hours of sunlight, indicating many sunny days — a great month for sightseeing.
Wind Speed in Santiago in December
Average wind conditions reach 2 m/s (4 knots) in December. This creates comfortable weather with light winds that gently move vegetation. Keep in mind this is an average. Daily conditions range from near-calm to more noticeable wind.If you're a fan of comfortable temperatures and drier conditions, December is a great time to visit.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the Dominican Republic, check out our Santiago's climate page.
Santiago Temperature in December
Min Temperature
19°C (66°F)
Max Temperature
29°C (84°F)
Chance of Rain
46%
Precipitation
49 mm (1.9 in)
Rainy days
14 days
Humidity
80%
Windspeed
2 m/s (4 knots)
Sunshine
202 hours
Percentage Sunshine
Daily Historical Temperatures
46-year average (1976-2025)
Based on our historical records, temperatures in Santiago typically stay consistent throughout December, with daily highs averaging around 29°C (84°F). Nights are warm, with lows around 21°C (70°F).
Average temperatures in December
Daily Historical Precipitation
46-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather for Santiago in December
Browse day-by-day weather records for Santiago spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Santiago historical weather extremes in December
Based on 28 years of weather observations (1997-2025), these are the most extreme conditions recorded in Santiago.
- On December 1, 1997, temperatures climbed to 34°C (93°F), marking the warmest December day on record.
- Santiago experienced its chilliest December day on December 31, 2003, reaching only 17°C (63°F).
- The lowest overnight temperature recorded in December was 14°C (57°F) (December 30, 2025).
Best Places in the Dominican Republic in December
Find out more about the weather in the Dominican Republic and which places have the best travel conditions in this month. See all of the Dominican Republic in December →
perfect weather
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unpleasant
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What to Wear in Santiago in December
Warm but pleasant conditions in Santiago 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. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Santiago in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the Dominican Republic, check out our Santiago's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Santiago climate overview or explore weather in the Dominican Republic.
