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The weather in March in San Juan

It's warm in March in San Juan with an average temperature of 29°C. Temperatures this month range from a low of 29°C to a high of 30°C. At night, you can expect temperatures between 23°C and 24°C.

Looking for great weather? March is a good time to be in San Juan. The temperatures are nice, and there’s not too much rain.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in March for San Juan, Puerto Rico. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 33°C in 2014, San Juan reached the highest temperature in March over the past 10 years. The lowest daytime temperature in this month was 24°C in 2017. The extreme nighttime temperatures ranged from a lowest recorded value of 21°C to a highest value of 25°C.

Water temperature

The water temperature at San Juan is 32°C this month. It’s really warm, perfect for a swim.

Rainfall amount

In March, there is an average of 67 mm of precipitation, spread over 10 days. The wind speed is around 4 Bft, mostly coming from the East.

Daily weather in March for San Juan

Click on any day in March to get detailed info about the usual weather on that day in San Juan. Check out the historical temperatures and precipitation over the past 10 years on this day.

March weather comparison

  San Juan New York
Average temperature 29°C 11°C
Max. temperature 30°C 14°C
Min. temperature 23°C -5°C
Total precipitation 67 mm 63 mm
Rainy days 10 days 10 days

Start of March

The month of March starts in San Juan with hot temps, averaging around 29°C during the day and nights around 24°C.

Mid March

By mid-March, daytime temps rise to around 30°C, with nights around 24°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.

End of March

By the end of March, the average daytime temperature in San Juan is around 30°C, while nighttime temps are about 24°C. A shower might pop up, but overall, the weather will be dry and sunny.

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UV index

The UV index is a maximum of 7 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.

Check out the climate of San Juan for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in March in San Juan, Puerto Rico. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in March in San Juan

Temperature in March in San Juan over the years

Precipitation charts

These charts show the average amount of precipitation in March in San Juan, Puerto Rico. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in March in San Juan

Total precipitation in March in San Juan over the years

Daily UV index in March in San Juan

This chart shows the average daily UV index in March in San Juan, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in March in San Juan

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Average weather in San Juan by month

Click on a month below to see detailed weather info for San Juan. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.