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In August 2027, the highest tide in Boston is on August 4 at 12:57 AM (11.8 ft) and the lowest on August 4 at 7:07 AM (−1.4 ft). The biggest range of the month, 13.2 ft, is on August 4; the smallest, 7.9 ft, on August 25.
Which days in August have the biggest tides in Boston?
Range of each day, coloured by spring and neap tides
Calendar
High and low tides in Boston, August 2027
🖨 Print or PDF| Day | High ▲ and low ▼ tide | Range | Moon | Sun |
|---|---|---|---|---|
| ▼4:32 AM −0.6 ft▲10:51 AM 9.5 ft▼4:43 PM 0.2 ft▲11:07 PM 11.4 ft | 12.0 | 5:37 AM · 8:05 PM | ||
| ▼5:25 AM −1.1 ft▲11:46 AM 10.1 ft▼5:38 PM −0.4 ft | 11.2 | 5:38 AM · 8:04 PM | ||
| ▲12:03 AM 11.7 ft▼6:16 AM −1.4 ft▲12:38 PM 10.6 ft▼6:32 PM −0.8 ft | 13.0 | 5:39 AM · 8:03 PM | ||
| ▲12:57 AM 11.8 ft▼7:07 AM −1.4 ft▲1:29 PM 10.9 ft▼7:26 PM −0.9 ft | 13.2 | 5:40 AM · 8:02 PM | ||
| ▲1:50 AM 11.6 ft▼7:57 AM −1.2 ft▲2:19 PM 11.0 ft▼8:20 PM −0.9 ft | 12.8 | 5:41 AM · 8:01 PM | ||
| ▲2:42 AM 11.1 ft▼8:48 AM −0.8 ft▲3:08 PM 10.9 ft▼9:15 PM −0.6 ft | 11.9 | 5:42 AM · 8:00 PM | ||
| ▲3:34 AM 10.5 ft▼9:40 AM −0.2 ft▲3:58 PM 10.6 ft▼10:12 PM −0.1 ft | 10.8 | 5:43 AM · 7:58 PM | ||
| ▲4:27 AM 9.8 ft▼10:33 AM 0.5 ft▲4:50 PM 10.3 ft▼11:12 PM 0.3 ft | 9.9 | 5:44 AM · 7:57 PM | ||
| ▲5:23 AM 9.0 ft▼11:29 AM 1.1 ft▲5:44 PM 9.9 ft | 8.7 | 5:45 AM · 7:56 PM | ||
| ▼12:14 AM 0.7 ft▲6:23 AM 8.5 ft▼12:28 PM 1.7 ft▲6:42 PM 9.5 ft | 8.8 | 5:47 AM · 7:54 PM | ||
| ▼1:17 AM 1.0 ft▲7:25 AM 8.1 ft▼1:28 PM 2.0 ft▲7:41 PM 9.4 ft | 8.4 | 5:48 AM · 7:53 PM | ||
| ▼2:18 AM 1.1 ft▲8:28 AM 8.0 ft▼2:27 PM 2.1 ft▲8:40 PM 9.3 ft | 8.3 | 5:49 AM · 7:52 PM | ||
| ▼3:15 AM 1.0 ft▲9:27 AM 8.1 ft▼3:22 PM 2.0 ft▲9:35 PM 9.4 ft | 8.4 | 5:50 AM · 7:50 PM | ||
| ▼4:06 AM 0.9 ft▲10:18 AM 8.3 ft▼4:12 PM 1.9 ft▲10:24 PM 9.5 ft | 8.6 | 5:51 AM · 7:49 PM | ||
| ▼4:50 AM 0.8 ft▲11:03 AM 8.5 ft▼4:56 PM 1.7 ft▲11:09 PM 9.7 ft | 8.9 | 5:52 AM · 7:47 PM | ||
| ▼5:29 AM 0.7 ft▲11:42 AM 8.7 ft▼5:36 PM 1.5 ft▲11:49 PM 9.7 ft | 9.0 | 5:53 AM · 7:46 PM | ||
| ▼6:05 AM 0.7 ft▲12:18 PM 8.9 ft▼6:13 PM 1.3 ft | 8.3 | 5:54 AM · 7:45 PM | ||
| ▲12:28 AM 9.8 ft▼6:38 AM 0.7 ft▲12:53 PM 9.1 ft▼6:48 PM 1.1 ft | 9.1 | 5:55 AM · 7:43 PM | ||
| ▲1:04 AM 9.7 ft▼7:10 AM 0.7 ft▲1:27 PM 9.3 ft▼7:23 PM 1.0 ft | 9.0 | 5:56 AM · 7:42 PM | ||
| ▲1:41 AM 9.6 ft▼7:43 AM 0.8 ft▲2:02 PM 9.4 ft▼8:00 PM 0.9 ft | 8.8 | 5:57 AM · 7:40 PM | ||
| ▲2:19 AM 9.4 ft▼8:17 AM 0.9 ft▲2:39 PM 9.6 ft▼8:40 PM 0.9 ft | 8.7 | 5:58 AM · 7:39 PM | ||
| ▲3:00 AM 9.2 ft▼8:54 AM 1.1 ft▲3:18 PM 9.6 ft▼9:24 PM 0.9 ft | 8.7 | 5:59 AM · 7:37 PM | ||
| ▲3:43 AM 8.8 ft▼9:35 AM 1.3 ft▲4:01 PM 9.6 ft▼10:13 PM 1.0 ft | 8.6 | 6:00 AM · 7:35 PM | ||
| ▲4:31 AM 8.5 ft▼10:23 AM 1.6 ft▲4:50 PM 9.6 ft▼11:09 PM 1.1 ft | 8.5 | 6:01 AM · 7:34 PM | ||
| ▲5:26 AM 8.2 ft▼11:17 AM 1.7 ft▲5:45 PM 9.6 ft | 7.9 | 6:03 AM · 7:32 PM | ||
| ▼12:11 AM 1.1 ft▲6:26 AM 8.1 ft▼12:19 PM 1.8 ft▲6:46 PM 9.7 ft | 8.6 | 6:04 AM · 7:31 PM | ||
| ▼1:15 AM 0.9 ft▲7:31 AM 8.2 ft▼1:25 PM 1.6 ft▲7:50 PM 10.0 ft | 9.1 | 6:05 AM · 7:29 PM | ||
| ▼2:18 AM 0.5 ft▲8:35 AM 8.6 ft▼2:30 PM 1.1 ft▲8:54 PM 10.4 ft | 9.8 | 6:06 AM · 7:27 PM | ||
| ▼3:17 AM 0.0 ft▲9:35 AM 9.2 ft▼3:31 PM 0.5 ft▲9:54 PM 10.8 ft | 10.8 | 6:07 AM · 7:26 PM | ||
| ▼4:13 AM −0.5 ft▲10:31 AM 9.9 ft▼4:29 PM −0.2 ft▲10:52 PM 11.2 ft | 11.8 | 6:08 AM · 7:24 PM | ||
| ▼5:05 AM −1.0 ft▲11:24 AM 10.5 ft▼5:23 PM −0.8 ft▲11:46 PM 11.5 ft | 12.4 | 6:09 AM · 7:22 PM |
Frequently asked questions
When is the highest tide in Boston in August 2027?
On August 4 at 12:57 AM, 11.8 ft above mean lower low water (MLLW).
When is the lowest tide in Boston in August 2027?
On August 4 at 7:07 AM, −1.4 ft.
Which days in August 2027 have spring tides in Boston?
August 1–7 and August 29–31.
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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