| < March >
|Normal Max/ High Temperature
|Min/ Low Temperature
|Average Sea or Water Temp
|Number of Wet Days (probability of rain on a day)
|Average Sunlight per day
|Average Daylight per day
|Sunny (Cloudy) Daylight Hours
|Sun altitude at solar noon on the 21st day.
- The average sea tempeature is 26 °C (78.8 °F).
- The average temperature in San Juan in March is fairly hot at 24 °C (75.2 °F).
- Afternoons can be very hot with average high temperatures reaching 28 °C (82.4 °F).
- Overnight temperatures are generally warm with an average low of 20 °C (68 °F).
- In March the range/ variation of daily mean temperatures is 8 °C (14.4 °F).
- The weather in March is slightly dry with rain now and again. Only 56mm (2.2in) of fluid precipitates across an average of 11 days.
- In March the skies in San Juan are quite sunny with on average a sizable 8:46 of splendid solar radiation daily.
- The shortest day is 11:44 long and the longest day is 12:16 long with an average length of 12:00.
- There are approximately 3:06 per day when bright sunshine is absent due to cloud, haze or the sun being too low on the horizon to register.
- It is sunny approximately 73.8% of daylight hours and cloudy 26.2% of daylight hours.
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Weather Trend Graph for March in San Juan, Puerto Rico
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