Blue Grotto (Grotta Azzurra) tide times: when to go
The entrance is about 1 m high. Rowboats stop entering when the sea is high or there is swell.
Mon 2 November 2026
Go at low tide: 06:05 to 09:47
Low tide at 07:47 · Average tidal range
| High tide | 01:43 | +0.0 m vs. mean sea level |
|---|---|---|
| Low tide | 07:47 | -0.1 m vs. mean sea level |
| High tide | 14:49 | +0.1 m vs. mean sea level |
| Low tide | 21:37 | -0.1 m vs. mean sea level |
Sunrise 06:34 · Sunset 16:59 · Shaded bands: low-tide windows; grey: dark
Next 7 days
| Day | Low tide | High tide | Daylight window | Range |
|---|---|---|---|---|
| Mon 2 Nov | 07:47, 21:37 | 01:43, 14:49 | 06:05–09:47 | Mid |
| Tue 3 Nov | 09:05, 22:42 | 03:12, 15:57 | 07:05–11:05 | Mid |
| Wed 4 Nov | 10:15, 23:33 | 04:28, 16:53 | 08:15–12:15 | Mid |
| Thu 5 Nov | 11:14 | 05:29, 17:41 | 09:14–13:14 | Mid |
| Fri 6 Nov | 00:14, 12:06 | 06:19, 18:24 | 10:06–14:06 | Mid |
| Sat 7 Nov | 00:50, 12:52 | 07:03, 19:04 | 10:52–14:52 | Spring |
| Sun 8 Nov | 01:23, 13:35 | 07:44, 19:42 | 11:35–15:35 | Spring |
Biggest tides in the next 12 months
Spring tides expose the most sea floor at low water and bring the highest high water.
| Date | Range | Low tide | High tide |
|---|---|---|---|
| Sat 26 Dec 2026 | 0.4 m | 03:28, 16:25 | 10:13, 22:06 |
| Sun 24 Jan 2027 | 0.4 m | 03:14, 16:08 | 09:53, 21:53 |
| Sun 21 Feb 2027 | 0.4 m | 02:16, 15:03 | 08:48, 20:55 |
| Mon 22 Mar 2027 | 0.4 m | 01:55, 14:35 | 08:19, 20:39 |
| Mon 5 Jul 2027 | 0.4 m | 04:10, 16:06 | 09:57, 22:49 |
| Tue 3 Aug 2027 | 0.4 m | 03:58, 15:51 | 09:47, 22:28 |
| Wed 1 Sep 2027 | 0.4 m | 03:37, 15:33 | 09:33, 22:01 |
| Thu 30 Sep 2027 | 0.4 m | 03:11, 15:13 | 09:18, 21:32 |
Tours
Blue Grotto (Grotta Azzurra) tide times by month
Where these tide times come from
We fit 18 tidal constituents to modelled hourly sea level for the nearest open-sea grid point (40.54, 14.21), then predict any date with astronomical arguments and nodal corrections. In a held-out week our high and low water times differed from the model forecast by a median of 10 minutes.
Local harbours, river flow, wind and air pressure shift real tides by tens of minutes and heights by tens of centimetres. For causeways and sea-floor walks, always follow the official safe crossing times posted on site.
Times are local (Europe/Rome). Heights are relative to mean sea level, not chart datum. Source data: Open-Meteo Marine API.