Weather in San Juan, Puerto Rico in January

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Visiting San Juan, Puerto Rico in January

January is one of the best months to visit San Juan for the best beach weather. It has the most sunshine and best sunbathing and swimming conditions of the year.

The weather in January is slightly cooler than the previous month. January has average maximum temperatures of 28°C (83°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 67% making it sunny but overcast at times. The hours of sunshine per day are 7.5hrs making the days quite long and bright.

January has total rainfall of 12.5cm (4.9inches) making it quite rainy but with only moderate tropical showers. There are 22.3 days with some rainfall so there are few clear days to enjoy the beach.

Sea temperatures are a very warm 27°C (80°F). January is an excellent month for swimming in San Juan with very comfortable temperatures for bathing all day. The sea temperature in January is marginally cooler than the previous month and temperatures continue to drop slightly into February.

The weather in San Juan during January is generally pleasant, with a mix of sunny and partly cloudy days. This makes it a great time for sunbathing and relaxing on the beach. Swimming, snorkeling, and diving are popular activities, as the water is still warm enough to enjoy. However, windsurfing and kitesurfing may be less ideal due to the slightly cooler and calmer winds. Also consider visiting San Juan in one of the other best months of February, March, April, for the best beach weather. Also consider one of our other suggestions for January.

Can you sunbathe in San Juan in January?

Yes, January is not an optimal time for sunbathing but it is possible on clearer days in San Juan.

January has average maximum temperatures of 28°C (83°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 67% making it sunny but overcast at times. The hours of sunshine per day are 7.5hrs making the days quite long and bright. January has total rainfall of 12.5cm (4.9inches) making it quite rainy but with only moderate tropical showers. There are 22.3 days with some rainfall so there are few clear days to enjoy the beach.

More about January temperature and sunshine.

Can you swim in San Juan in January?

Yes, January is an excellent month for swimming in San Juan with very warm sea temperatures 27°C (80°F).

More about January sea temperatures.

Is January a good time to holiday in San Juan?

Yes, January is a good time for a holiday in San Juan.

January has average maximum temperatures of 28°C (83°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 67% making it sunny but overcast at times. The hours of sunshine per day are 7.5hrs making the days quite long and bright. January has total rainfall of 12.5cm (4.9inches) making it quite rainy but with only moderate tropical showers. There are 22.3 days with some rainfall so there are few clear days to enjoy the beach. Sea temperatures are a very warm 27°C (80°F). January is an excellent month for swimming in San Juan with very comfortable temperatures for bathing all day.

More about the January temperatures and sunshine.

Is San Juan warm in January?

Yes, San Juan is very warm and perfect for sunbathing on clear days in January.

The average maximum temperature in San Juan in January is 28°C (83°F). The average maximum temperature is 29°C (84°) in the previous month and 29°C (83°F) in the next month.

The average temperature in San Juan in January is 25°C (78°F). The average temperature is 26°C (79°F) in the previous month and 26°C (78°F) in the next month.

More info about the January temperatures and sunshine.

How sunny is San Juan in January?

The average day light hours per day in San Juan in January are 11.1. The sunshine percentage is 67% making it sunny but overcast at times. The hours of sunshine per day are 7.5hrs making the days quite long and bright.

More about January sunshine.

Crowds in San Juan in January

January is a moderately busy month at the beaches in San Juan, Puerto Rico. The weather is pleasant, and many tourists visit the island to escape the cold weather in their home countries. However, the crowds are not overwhelming, as the peak holiday season has just ended. There are no major public holidays or events in January.

Temperature in San Juan in January

The weather in January is slightly cooler than the previous month. The average maximum temperature in San Juan in January is 28°C (83°F). The average maximum temperature is 29°C (84°F) in the previous month and 29°C (83°F) in the next month.

The average temperature in San Juan in January is 25°C (78°F). The average temperature is 26°C (79°F) in the previous month and 26°C (78°F) in the next month.

The average minimum temperature in San Juan in January is 22°C (72°F). The minimum temperature is 23°C (73°F) in the previous month and 22°C (72°F) in the next month.

Sunshine in San Juan in January

The days in January are marginally longer than the previous month and the days continue to get marginally longer into February. January has marginally more hours of sunshine than the previous month and hours of sunshine continue to rise into February. During January the average day light hours are 11.1 per day in San Juan. The sunshine percentage is 67% making it sunny but overcast at times. The hours of sunshine per day are 7.5hrs making the days quite long and bright.

The ultraviolet index in San Juan in January is typically 8.1 during January. An ultraviolet index reading of 8 to 10 indicates a very high risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 15 minutes. Take extra precautions because unprotected skin and eyes will be damaged and can burn quickly. Tanning will be safest before 10am and after 4pm but only with a good application of sun screen. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.

Sea Temperature in San Juan in January

The average sea water temperature in San Juan in January is 26.5°C (79.7°F) which is very warm and ideal for relaxing and swimming for the whole day. The sea temperature in January is marginally cooler than the previous month and temperatures continue to drop slightly into February.

Rainfall in San Juan in January

January weather is drier than the previous month and rainfall continues to drop quickly into February. January has fewer days of rain than the previous month and rainy days continue to drop slightly into February. The average total rainfall in San Juan in January is 12.5cm (4.9inches) and on average there are 22.3 rainy days in January making it a very wet time to visit the beach.

Humidity in San Juan in January

The maximum dew point (an indicator of humidity) in San Juan in January is 22°C (71°F) which is very humid and quite uncomfortable for most unless you are on a beach. At night you would most likely require a fan. The dew point is 22°C (72°F) in the previous month and 21°C (21°F) in the next month.

The average maximum relative humidity in San Juan in January is typically 89.7%. The maximum relative humidity is 88.9% in the previous month and 87.6% in the next month.

The average relative humidity in San Juan in January is typically 76.4%. The average relative humidity is 76.4% in the previous month and 73.5% in the next month.

Wind Speed in San Juan in January

The average maximum wind speed in San Juan in January is typically 30KM/H (19MPH). The average maximum wind speed is 30KM/H (18MPH) in the previous month and 31KM/H (19MPH) in the next month.

The average wind speed in San Juan in January is typically 13KM/H (8MPH). The average wind speed is 12KM/H (8MPH) in the previous month and 13KM/H (8MPH) in the next month.

The average wind direction in San Juan in January is from the East.

Monthly Averages

Suggested Beaches in January

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