Monthly weather forecast and climate
Rio San Juan, Dominican Republic

January, like December, in Rio San Juan, Dominican Republic, is a moderately hot winter month, with average temperature varying between 19°C (66.2°F) and 28°C (82.4°F). January, February and December, with an average high-temperature of 28°C (82.4°F), are the coldest months. In Rio San Juan, during January, the rain falls for 14 days and regularly aggregates up to 135mm (5.31") of precipitation. Weather in January »

The last month of the winter, February, is also a moderately hot month in Rio San Juan, Dominican Republic, with average temperature fluctuating between 19°C (66.2°F) and 28°C (82.4°F). The coldest months are January, February and December, with an average high-temperature of 28°C (82.4°F). The month with the least rainfall is February when the rain falls for 11 days and typically collects 103mm (4.06") of precipitation. Weather in February »

The first month of the spring, March, is still a warm month in Rio San Juan, Dominican Republic, with temperature in the range of an average low of 19°C (66.2°F) and an average high of 29°C (84.2°F). In March, the average high-temperature is practically the same as in February - a still moderately hot 29°C (84.2°F). Weather in March »

April in Rio San Juan, Dominican Republic, is a tropical spring month, with average temperature ranging between min 20°C (68°F) and max 30°C (86°F). In Rio San Juan, the average high-temperature is essentially the same as in March - a tropical 30°C (86°F). Weather in April »

The last month of the spring, May, is another tropical month in Rio San Juan, Dominican Republic, with average temperature fluctuating between 21°C (69.8°F) and 31°C (87.8°F). In Rio San Juan, the average high-temperature is relatively the same as in April - a still tropical 31°C (87.8°F). Weather in May »

The first month of the summer, June, is also a hot month in Rio San Juan, Dominican Republic, with temperature in the range of an average low of 22°C (71.6°F) and an average high of 32°C (89.6°F). The warmest months are June through September, with an average high-temperature of 32°C (89.6°F). Weather in June »

July, the same as June, in Rio San Juan, Dominican Republic, is a hot summer month, with average temperature ranging between max 32°C (89.6°F) and min 22°C (71.6°F). The warmest months are June through September, with an average high-temperature of 32°C (89.6°F). In July, the rain falls for 15 days. Weather in July »

August, the last month of the summer, in Rio San Juan, is another hot month, with average temperature ranging between max 32°C (89.6°F) and min 22°C (71.6°F). The warmest months are June through September, with an average high-temperature of 32°C (89.6°F). Weather in August »

The first month of the autumn, September, is still a tropical month in Rio San Juan, Dominican Republic, with average temperature varying between 32°C (89.6°F) and 22°C (71.6°F). The warmest months are June through September, with an average high-temperature of 32°C (89.6°F). In Rio San Juan, during September, the rain falls for 15 days and regularly aggregates up to 131mm (5.16") of precipitation. Weather in September »

October, the same as September, in Rio San Juan, Dominican Republic, is a hot autumn month, with temperature in the range of an average high of 31°C (87.8°F) and an average low of 21°C (69.8°F). In Rio San Juan, the average high-temperature in October is essentially the same as in September - a still tropical 31°C (87.8°F). Weather in October »

November, the last month of the autumn, in Rio San Juan, is also a moderately hot month, with average temperature fluctuating between 29°C (84.2°F) and 20°C (68°F). In Rio San Juan, Dominican Republic, the average high-temperature is practically the same as in October - a warm 29°C (84.2°F). Weather in November »

December, the first month of the winter, in Rio San Juan, is also a moderately hot month, with average temperature varying between 28°C (82.4°F) and 20°C (68°F). January, February and December, with an average high-temperature of 28°C (82.4°F), are the coldest months. Weather in December »

What are the coldest months in Rio San Juan?

January, February and December, with an average high-temperature of 28°C (82.4°F), are the coldest months.

How many days does it rain in Rio San Juan?

Throughout the year, in Rio San Juan, Dominican Republic, there are 162 rainfall days, and 1895mm (74.61") of precipitation is accumulated.

What is the driest month in Rio San Juan?

February is the month with the least rainfall. Rain falls for 11 days and accumulates 103mm (4.06") of precipitation.

When is the sea coldest in Rio San Juan?

February is the month with the coldest seawater, with an average sea temperature of 25.7°C (78.3°F).

When is the highest UV index in Rio San Juan?

Months with the highest UV index in Rio San Juan are March through August, with an average maximum UV index of 12.

What are the warmest months in Rio San Juan?

Warmest months are June through September, with an average high-temperature of 32°C (89.6°F).

When are the longest days in Rio San Juan?

The month with the longest days in Rio San Juan, Dominican Republic, is June, with an average of 13.3h of daylight.

What are the months with the most sunshine in Rio San Juan?

Months with the most sunshine are June through August, with an average of 8h of sunshine.

When is the sea warmest in Rio San Juan?

The month with the warmest seawater in Rio San Juan, Dominican Republic, is September, with an average sea temperature of 29.2°C (84.6°F).

What is the rainiest month in Rio San Juan?

November is the month with the most rainfall in Rio San Juan, Dominican Republic. Rain falls for 14 days and accumulates 268mm (10.55") of precipitation.

What is the month with the least sunshine in Rio San Juan?

Months with the least sunshine in Rio San Juan, Dominican Republic, are November and December, with an average of 6h of sunshine.

What is the month with the shortest days in Rio San Juan?

December has the shortest days of the year, with an average of 11h of daylight.

What is the month with the lowest UV index in Rio San Juan?

With an average maximum UV index of 7, December is the month with the lowest UV index in Rio San Juan.
Average temperature - Rio San Juan, Dominican Republic

The warmest months (with the highest average high temperature) are June, July, August and September (32°C).
Months with the lowest average high temperature are January, February and December (28°C).

Months with the highest average low temperature are June, July, August and September (22°C).
The coldest months (with the lowest average low temperature) are January, February and March (19°C).

Average rainfall - Rio San Juan, Dominican Republic

The wettest month (with the highest rainfall) is November (268mm).
The driest month (with the least rainfall) is February (103mm).

Average rainfall days - Rio San Juan, Dominican Republic
Average sea temperature - Rio San Juan, Dominican Republic

The best month for swimming (with the highest average sea temperature) is September (29.2°C).
The coldest month (with the lowest average sea temperature) is February (25.7°C).

Average daylight / Average sunshine - Rio San Juan, Dominican Republic

The month with the longest days is June (Average daylight: 13.3h).
The month with the shortest days is December (Average daylight: 11h).

Months with the most sunshine are June, July and August (Average sunshine: 8h).
Months with the least sunshine are November and December (Average sunshine: 6).

Average UV index - Rio San Juan, Dominican Republic