San Juan in April
Find out everything about the water temperature in San Juan in April. Average, minimum and maximum recorded temperatures as well as daily temperature in April for the last two years. Compare the current month's sea temperature data with other months of the year.
Water temperature in April
Minimum:
78.7 °F
Average:
80.2 °F
Maximum:
82.6 °F
Sea water temperature in San Juan in April
In the city of San Juan, the month of April is a great time for swimming. The minimum recorded temperature during this month was 78.7°F on April 9, 2023, with an average temperature being 80.2°F and a maximum temperature reaching 82.6°F on April 9, 2024.
| Date | 10 years average | 2024 | 2023 |
|---|---|---|---|
| Apr 1 | 79.9°F | 81.3°F | 79.6°F |
| Apr 2 | 79.9°F | 81.1°F | 79.4°F |
| Apr 3 | 79.9°F | 80.7°F | 79.4°F |
| Apr 4 | 79.9°F | 80.5°F | 79.4°F |
| Apr 5 | 79.9°F | 80.6°F | 79.4°F |
| Apr 6 | 80.1°F | 81.0°F | 79.5°F |
| Apr 7 | 80.1°F | 81.8°F | 79.2°F |
| Apr 8 | 80.0°F | 82.2°F | 78.9°F |
| Apr 9 | 80.0°F | 82.6°F | 78.7°F |
| Apr 10 | 80.0°F | 82.3°F | 79.0°F |
| Apr 11 | 80.0°F | 81.5°F | 79.1°F |
| Apr 12 | 80.1°F | 81.1°F | 79.6°F |
| Apr 13 | 80.1°F | 80.7°F | 79.6°F |
| Apr 14 | 80.0°F | 80.4°F | 79.7°F |
| Apr 15 | 80.0°F | 80.9°F | 79.8°F |
| Apr 16 | 80.1°F | 81.2°F | 79.8°F |
| Apr 17 | 80.1°F | 81.0°F | 79.7°F |
| Apr 18 | 80.2°F | 81.2°F | 80.2°F |
| Apr 19 | 80.2°F | 81.9°F | 79.9°F |
| Apr 20 | 80.3°F | 82.2°F | 80.0°F |
| Apr 21 | 80.3°F | 82.3°F | 79.9°F |
| Apr 22 | 80.3°F | 82.0°F | 80.0°F |
| Apr 23 | 80.3°F | 81.6°F | 80.4°F |
| Apr 24 | 80.5°F | 81.9°F | 80.6°F |
| Apr 25 | 80.5°F | 82.1°F | 81.0°F |
| Apr 26 | 80.6°F | 81.9°F | 81.2°F |
| Apr 27 | 80.7°F | 81.8°F | 81.2°F |
| Apr 28 | 80.8°F | 81.6°F | 81.6°F |
| Apr 29 | 80.8°F | 81.9°F | 81.7°F |
| Apr 30 | 80.8°F | 81.7°F | 82.0°F |
In San Juan, the water temperature is comfortable for swimming all year round.
The warmest water in San Juan was recorded on September 24, 2024, reaching a 87.7°F. While the coldest temperature occurred on February 16, 2018, dipping to 78.1°F. The average readings by season are 80.8°F in Winter, 80.3°F in Spring, 83.2°F in Summer, and 84.6°F in Autumn.
The average temperature in April is slightly warmer than March's average of 79.6°F. And in May, the temperature is expected to rise further, potentially reaching an average of 81.2°F.