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In May 2027, the highest tide in San Juan is on May 7 at 9:59 PM (1.9 ft) and the lowest on May 8 at 3:24 PM (−0.2 ft). The biggest range of the month, 2.1 ft, is on May 8; the smallest, 0.6 ft, on May 24.
Which days in May have the biggest tides in San Juan?
Range of each day, coloured by spring and neap tides
Calendar
High and low tides in San Juan, May 2027
🖨 Print or PDF| Day | High ▲ and low ▼ tide | Range | Moon | Sun |
|---|---|---|---|---|
| ▲4:29 AM 1.2 ft▼11:01 AM 0.4 ft▲5:16 PM 1.1 ft▼11:11 PM 0.5 ft | 0.9 | 5:58 AM · 6:46 PM | ||
| ▲5:14 AM 1.2 ft▼11:35 AM 0.3 ft▲6:06 PM 1.3 ft | 1.0 | 5:58 AM · 6:47 PM | ||
| ▼12:15 AM 0.5 ft▲5:55 AM 1.1 ft▼12:08 PM 0.2 ft▲6:53 PM 1.5 ft | 1.2 | 5:57 AM · 6:47 PM | ||
| ▼1:14 AM 0.5 ft▲6:35 AM 1.1 ft▼12:41 PM 0.1 ft▲7:38 PM 1.6 ft | 1.5 | 5:57 AM · 6:48 PM | ||
| ▼2:09 AM 0.4 ft▲7:14 AM 1.0 ft▼1:17 PM 0.0 ft▲8:24 PM 1.8 ft | 1.7 | 5:56 AM · 6:48 PM | ||
| ▼3:02 AM 0.4 ft▲7:54 AM 0.9 ft▼1:56 PM −0.1 ft▲9:11 PM 1.8 ft | 1.9 | 5:56 AM · 6:48 PM | ||
| ▼3:55 AM 0.4 ft▲8:37 AM 0.9 ft▼2:38 PM −0.2 ft▲9:59 PM 1.9 ft | 2.1 | 5:55 AM · 6:49 PM | ||
| ▼4:48 AM 0.4 ft▲9:24 AM 0.8 ft▼3:24 PM −0.2 ft▲10:50 PM 1.9 ft | 2.1 | 5:55 AM · 6:49 PM | ||
| ▼5:41 AM 0.3 ft▲10:16 AM 0.8 ft▼4:15 PM −0.2 ft▲11:42 PM 1.9 ft | 2.0 | 5:54 AM · 6:49 PM | ||
| ▼6:34 AM 0.4 ft▲11:16 AM 0.8 ft▼5:10 PM −0.1 ft | 0.9 | 5:54 AM · 6:50 PM | ||
| ▲12:36 AM 1.8 ft▼7:26 AM 0.4 ft▲12:23 PM 0.9 ft▼6:13 PM 0.0 ft | 1.8 | 5:53 AM · 6:50 PM | ||
| ▲1:32 AM 1.7 ft▼8:16 AM 0.4 ft▲1:37 PM 1.0 ft▼7:24 PM 0.1 ft | 1.5 | 5:53 AM · 6:50 PM | ||
| ▲2:28 AM 1.6 ft▼9:04 AM 0.3 ft▲2:53 PM 1.1 ft▼8:42 PM 0.3 ft | 1.3 | 5:53 AM · 6:51 PM | ||
| ▲3:23 AM 1.5 ft▼9:50 AM 0.3 ft▲4:06 PM 1.3 ft▼10:05 PM 0.4 ft | 1.1 | 5:52 AM · 6:51 PM | ||
| ▲4:18 AM 1.3 ft▼10:34 AM 0.2 ft▲5:11 PM 1.5 ft▼11:24 PM 0.4 ft | 1.2 | 5:52 AM · 6:52 PM | ||
| ▲5:10 AM 1.2 ft▼11:17 AM 0.1 ft▲6:10 PM 1.6 ft | 1.4 | 5:52 AM · 6:52 PM | ||
| ▼12:37 AM 0.4 ft▲5:59 AM 1.1 ft▼11:59 AM 0.0 ft▲7:05 PM 1.7 ft | 1.7 | 5:51 AM · 6:52 PM | ||
| ▼1:41 AM 0.4 ft▲6:46 AM 0.9 ft▼12:41 PM 0.0 ft▲7:55 PM 1.8 ft | 1.8 | 5:51 AM · 6:53 PM | ||
| ▼2:39 AM 0.4 ft▲7:30 AM 0.9 ft▼1:22 PM −0.1 ft▲8:43 PM 1.8 ft | 1.9 | 5:51 AM · 6:53 PM | ||
| ▼3:32 AM 0.3 ft▲8:12 AM 0.8 ft▼2:02 PM −0.1 ft▲9:27 PM 1.8 ft | 1.9 | 5:50 AM · 6:53 PM | ||
| ▼4:20 AM 0.4 ft▲8:52 AM 0.7 ft▼2:41 PM −0.1 ft▲10:09 PM 1.7 ft | 1.8 | 5:50 AM · 6:54 PM | ||
| ▼5:04 AM 0.4 ft▲9:30 AM 0.7 ft▼3:19 PM −0.1 ft▲10:48 PM 1.7 ft | 1.7 | 5:50 AM · 6:54 PM | ||
| ▼5:44 AM 0.4 ft▲10:09 AM 0.7 ft▼3:57 PM 0.0 ft▲11:25 PM 1.6 ft | 1.6 | 5:50 AM · 6:55 PM | ||
| ▼6:21 AM 0.4 ft▲10:51 AM 0.7 ft▼4:37 PM 0.1 ft | 0.6 | 5:49 AM · 6:55 PM | ||
| ▲12:01 AM 1.5 ft▼6:56 AM 0.4 ft▲11:39 AM 0.7 ft▼5:20 PM 0.2 ft | 1.3 | 5:49 AM · 6:55 PM | ||
| ▲12:36 AM 1.5 ft▼7:31 AM 0.4 ft▲12:35 PM 0.8 ft▼6:09 PM 0.3 ft | 1.1 | 5:49 AM · 6:56 PM | ||
| ▲1:14 AM 1.4 ft▼8:07 AM 0.4 ft▲1:36 PM 0.9 ft▼7:06 PM 0.4 ft | 1.0 | 5:49 AM · 6:56 PM | ||
| ▲1:53 AM 1.3 ft▼8:42 AM 0.4 ft▲2:40 PM 1.0 ft▼8:12 PM 0.5 ft | 1.0 | 5:49 AM · 6:57 PM | ||
| ▲2:34 AM 1.3 ft▼9:18 AM 0.3 ft▲3:42 PM 1.1 ft▼9:24 PM 0.6 ft | 1.0 | 5:49 AM · 6:57 PM | ||
| ▲3:17 AM 1.2 ft▼9:54 AM 0.2 ft▲4:40 PM 1.3 ft▼10:39 PM 0.6 ft | 1.0 | 5:49 AM · 6:57 PM | ||
| ▲4:01 AM 1.1 ft▼10:31 AM 0.1 ft▲5:34 PM 1.4 ft▼11:50 PM 0.6 ft | 1.3 | 5:48 AM · 6:58 PM |
Frequently asked questions
When is the highest tide in San Juan in May 2027?
On May 7 at 9:59 PM, 1.9 ft above mean lower low water (MLLW).
When is the lowest tide in San Juan in May 2027?
On May 8 at 3:24 PM, −0.2 ft.
Which days in May 2027 have spring tides in San Juan?
May 5–9, May 11 and May 18–22.
Where does this data come from?
These tides are an astronomical prediction computed by the Tides Pro engine with tide models and harmonic constants, checked against the official predictions of NOAA. How we validate them is in our methodology. Heights are above mean lower low water (MLLW). They do not include wind or air pressure: for navigation, use official publications.
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