San Juan in March
Find out everything about the water temperature in San Juan in March. Average, minimum and maximum recorded temperatures as well as daily temperature in March for the last two years. Compare the current month's sea temperature data with other months of the year.
Water temperature in March
Minimum:
58.3 °F
Average:
66.0 °F
Maximum:
71.9 °F
Sea water temperature in San Juan in March
In the city of San Juan, the month of March is somewhat too cool for swimming. The minimum recorded temperature during this month was 58.3°F on March 26, 2022, with an average temperature being 66.0°F and a maximum temperature reaching 71.9°F on March 1, 2017.
| Date | 10 years average | 2024 | 2023 |
|---|---|---|---|
| Mar 1 | 67.4°F | 67.2°F | 64.3°F |
| Mar 2 | 67.4°F | 67.1°F | 64.3°F |
| Mar 3 | 67.2°F | 68.0°F | 65.3°F |
| Mar 4 | 67.0°F | 68.2°F | 64.8°F |
| Mar 5 | 66.5°F | 66.8°F | 64.6°F |
| Mar 6 | 66.4°F | 65.8°F | 63.3°F |
| Mar 7 | 66.5°F | 67.6°F | 61.6°F |
| Mar 8 | 66.6°F | 65.8°F | 62.6°F |
| Mar 9 | 66.7°F | 67.4°F | 65.8°F |
| Mar 10 | 66.5°F | 64.9°F | 68.9°F |
| Mar 11 | 66.9°F | 66.4°F | 67.8°F |
| Mar 12 | 66.6°F | 65.2°F | 67.9°F |
| Mar 13 | 66.6°F | 66.5°F | 67.6°F |
| Mar 14 | 66.6°F | 65.2°F | 67.7°F |
| Mar 15 | 66.1°F | 63.6°F | 67.8°F |
| Mar 16 | 65.9°F | 65.1°F | 67.1°F |
| Mar 17 | 65.7°F | 66.3°F | 64.1°F |
| Mar 18 | 65.4°F | 65.1°F | 64.3°F |
| Mar 19 | 65.7°F | 67.7°F | 63.5°F |
| Mar 20 | 65.8°F | 68.3°F | 64.5°F |
| Mar 21 | 65.8°F | 67.6°F | 64.4°F |
| Mar 22 | 65.5°F | 67.2°F | 64.5°F |
| Mar 23 | 65.5°F | 67.1°F | 66.2°F |
| Mar 24 | 65.4°F | 67.3°F | 64.2°F |
| Mar 25 | 65.9°F | 67.1°F | 65.9°F |
| Mar 26 | 65.6°F | 65.9°F | 65.7°F |
| Mar 27 | 65.1°F | 65.2°F | 65.9°F |
| Mar 28 | 64.8°F | 64.5°F | 65.6°F |
| Mar 29 | 64.7°F | 64.2°F | 66.0°F |
| Mar 30 | 64.7°F | 64.5°F | 68.0°F |
| Mar 31 | 64.8°F | 65.9°F | 66.7°F |
In an average year, San Juan offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in San Juan was recorded on February 10, 2023, reaching a 72.2°F. While the coldest temperature occurred on October 19, 2021, dipping to 53.4°F. The average readings by season are 65.6°F in Winter, 63.7°F in Spring, 59.5°F in Summer, and 59.0°F in Autumn.
March's average temperature is a slight drop from February's average of 67.2°F. In April, the temperature is expected to decrease further, potentially averaging around 63.5°F.