The climate in San Juan during March can be summarized as hot, humid and reasonably dry.
March is in the spring in San Juan and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a muggy 28°C (82°F), whilst at night 21°C (69°F) is normal.
|Daytime temperature||27.7°C 81.8°F|
|Nightly temperature||20.6°C 69°F|
|Average temperature||24.1°C 75.4°F|
|Daily sunshine||9.6 hrs|
|Avg rainfall||79 mm 3.1 ins|
|Rainy days||15 days|
|Sea temperature||26.2°C 79.2°F|
|Windspeed||16.2kph 10 mph|
On average March is the driest month of the year in San Juan with around 79mm 3.1 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 15 days, although this may vary considerably.
On the flip side this corresponds to an average of 9.6 hours of sunshine per day.
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in San Juan in March 2023.
|Hottest month:||August||30.2°C 86.4°F|
|Driest month:||March||79mm 3.1ins|
|Coldest month:||February||26.9°C 80.4°F|
|Wettest month:||August||195mm 7.7ins|