Weather in January
Temperature
The lowest level of Rio San Juan's temperatures is noted during January, February and December, averaging a high-temperature of 28°C (82.4°F).Rainfall
In Rio San Juan, in January, it is raining for 14 days, with typically 135mm (5.31") of accumulated precipitation. In Rio San Juan, during the entire year, the rain falls for 162 days and collects up to 1895mm (74.61") of precipitation.Sea temperature
In Rio San Juan, Dominican Republic, the average seawater temperature in January is 26.2°C (79.2°F).Note: In water activities such as swimming and diving, temperatures from 25°C (77°F) to 29°C (84.2°F) are deemed highly pleasurable for extended periods without any unease.
Daylight
The average length of the day in January in Rio San Juan, Dominican Republic, is 11h and 6min.On the first day of the month, sunrise is at 07:14 and sunset at 18:12. On the last day of January, sunrise is at 07:15 and sunset at 18:31 AST.
Sunshine
The average sunshine in January in Rio San Juan is 7h.UV index
In January, the average daily maximum UV index in Rio San Juan is 8. A UV Index value of 8 to 10 symbolizes a very high health hazard from exposure to the Sun's UV rays for the average person.Note: A typical high UV index of 8 in January suggests the following recommendations:
Ensure safety measures are in place, as skin and eyes are vulnerable to quick damage. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Alert! UV radiation becomes sharper due to reflections from sand and water.
Frequently asked questions
What is the coldest month in Rio San Juan?
How hot does it get in Rio San Juan in January?
How much does it rain in Rio San Juan in January?
What is the sea water temperature in January in Rio San Juan?
What is the average length of the day in January in Rio San Juan?
What time are sunrise and sunset in January in Rio San Juan?
How many hours of sunshine does Rio San Juan have in January?
What is the UV index reading in January in Rio San Juan?
Average temperature in January
Rio San Juan, Dominican Republic
- Average high temperature in January: 28°C
The warmest months (with the highest average high temperature) are June, July, August and September (32°C).
The months with the lowest average high temperature are January, February and December (28°C).
- Average low temperature in January: 19°C
The 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 in January
Rio San Juan, Dominican Republic
- Average rainfall in January: 135mm
The wettest month (with the highest rainfall) is November (268mm).
The driest month (with the least rainfall) is February (103mm).
Average rainfall days in January
Rio San Juan, Dominican Republic
- Average rainfall days in January: 14 days
The months with the highest number of rainy days are August and October (16 days).
The month with the least rainy days is April (10 days).
Average sea temperature in January
Rio San Juan, Dominican Republic
- Average sea temperature in January: 26.2°C
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 in January /
Average sunshine in January
Rio San Juan, Dominican Republic
- Average daylight in January: 11h and 1min
The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 11h and 0min).
- Average sunshine in January: 7h
The months with the most sunshine are June, July and August (Average sunshine: 8h).
The months with the least sunshine are November and December (Average sunshine: 6h).
Average UV index in January
Rio San Juan, Dominican Republic
- Average UV index in January: 8
The months with the highest UV index are March, April, May, June, July and August (UV index 12).
The month with the lowest UV index is December (UV index 7).
Rio San Juan, Dominican Republic
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