Rio San Juan weather in December 2026

Q: How hot is it in Rio San Juan in December?

Daytime temperatures usually reach 29°C in Rio San Juan in December with high heat and humidity, falling to 22°C at night.

Q: How sunny is it in Rio San Juan in December?

There are normally 7 hours of bright sunshine each day in Rio San Juan in December - that's 67% of daylight hours.

Q: How warm is the sea around Rio San Juan in December?

The average sea temperature around Rio San Juan in December is 27°C.

Q: Does it rain in Rio San Juan in December?

There are usually 17 days with some rain in Rio San Juan in December and the average monthly rainfall is 89mm.

Expect daytime maximum temperatures of 82°F in Rio San Juan, Dominican Republic in December based on long-term weather averages. There are 6 hours of sunshine per day on average with 14 days with some rainfall and typically 8.9 inches of rainfall in the month.

82
82°F max day temperature
6
6 hours of sunshine per day
14
14 days with some rainfall
68
68°F min night temperature
11
11 hours of daylight per day
M
Moderate heat & humidity
8.9
8.9 inches of monthly rainfall
7
7 (High) UV index
81
81°F sea temperature

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The December weather guide for Dominican Republic (Rio San Juan) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C) | Imperial (°F)

More about the Dominican Republic

How hot is it in Rio San Juan in December?

Daytime temperatures usually reach 84°F in Rio San Juan in December with high heat and humidity, falling to 72°F at night.

How sunny is it in Rio San Juan in December?

There are normally 7 hours of bright sunshine each day in Rio San Juan in December - that's 67% of daylight hours.

How warm is the sea around Rio San Juan in December?

The average sea temperature around Rio San Juan in December is 81°F.

Does it rain in Rio San Juan in December?

There are usually 17 days with some rain in Rio San Juan in December and the average monthly rainfall is 3.5 inches.

Rio San Juan December sunrise & sunset times

Browse the sunrise and sunset times for Rio San Juan in December 2026. Select a month to view Rio San Juan sunrise and sunset times for the next 12 months.

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