Restelo tides
Today, Wednesday, October 28, 2026 · local time (WET) · Lisbon, Portugal- 3:19 am10.9 ft
- 3:43 pm10.6 ft
- 9:28 am1.4 ft
- 9:45 pm1.8 ft
- Tide now
- 3.4 ft ↑ rising · high 4:04 am (10.7 ft)
- Coefficient
- 100 · big spring tides
- Range today
- 9.5 ft
Today there are high tides at 3:19 am (10.9 ft) and 3:43 pm (10.6 ft) and low tides at 9:28 am and 9:45 pm. Tide coefficient 100. Right now the tide is rising toward the high tide at 4:04 am. In Restelo the tide is semidiurnal: two high and two low tides a day, of similar height. The next spring tides: from October 26 to 28.
Today's high and low tides
- ▲ High tide 3:19 am 10.9 ft · coef. 100
- ▼ Low tide 9:28 am 1.4 ft
- ▲ High tide 3:43 pm 10.6 ft · coef. 97
- ▼ Low tide 9:45 pm 1.8 ft
↑ Rising The tide is rising. 4 h 33 min to high tide at 4:04 am.
Tide coefficient 100 for the 3:19 am high tide and 97 for the 3:43 pm high tide. Big spring tides. The water rises and falls 9.5 ft between the highest high and the lowest low: a large range for this place. 70 is an average tide here; 90 and above means spring tides; below 45, neap tides. What is the tide coefficient?
Heights above chart datum: the lowest astronomical tide (LAT), the zero of nautical charts in Europe. Astronomical prediction: wind and air pressure can raise or lower the water by a few inches, and more in a storm. Not for navigation.
Tides for the next 7 days
| Day | Sun | Tide 1 | Tide 2 | Tide 3 | Tide 4 | Coef. | Moon | Major periods | Activity |
|---|---|---|---|---|---|---|---|---|---|
| Today, Wed 28 | 6:59 am · 5:41 pm | High tide 3:19 am · 10.9 ft | Low tide 9:28 am · 1.4 ft | High tide 3:43 pm · 10.6 ft | Low tide 9:45 pm · 1.8 ft | Coef. 100 | 92% | Major periods 1:00 am · 1:32 pm | High |
| Thu 29 | 7:00 am · 5:40 pm | High tide 4:04 am · 10.7 ft | Low tide 10:15 am · 1.7 ft | High tide 4:32 pm · 10.0 ft | Low tide 10:31 pm · 2.3 ft | Coef. 93 | 85% | Major periods 2:04 am · 2:36 pm | Medium |
| Fri 30 | 7:01 am · 5:39 pm | High tide 4:53 am · 10.2 ft | Low tide 11:08 am · 2.2 ft | High tide 5:27 pm · 9.3 ft | Low tide 11:23 pm · 3.0 ft | Coef. 81 | 76% | Major periods 3:08 am · 3:40 pm | Medium |
| Sat 31 | 7:03 am · 5:38 pm | High tide 5:50 am · 9.7 ft | Low tide 12:11 pm · 2.9 ft | High tide 6:32 pm · 8.6 ft | — | Coef. 67 | 65% | Major periods 4:11 am · 4:41 pm | Medium |
| Sun 1 | 7:04 am · 5:37 pm | Low tide 12:27 am · 3.7 ft | High tide 6:58 am · 9.2 ft | Low tide 1:30 pm · 3.3 ft | High tide 7:52 pm · 8.1 ft | Coef. 55 | Last quarter | Major periods 5:10 am · 5:38 pm | Medium |
| Mon 2 | 7:05 am · 5:36 pm | Low tide 1:49 am · 4.1 ft | High tide 8:19 am · 8.9 ft | Low tide 3:02 pm · 3.4 ft | High tide 9:19 pm · 8.1 ft | Coef. 50 | 43% | Major periods 6:04 am · 6:29 pm | Medium |
| Tue 3 | 7:06 am · 5:35 pm | Low tide 3:21 am · 4.0 ft | High tide 9:42 am · 8.9 ft | Low tide 4:20 pm · 3.2 ft | High tide 10:32 pm · 8.4 ft | Coef. 56 | 32% | Major periods 6:53 am · 7:17 pm | Medium |
▲ high tide · ▼ low tide · heights above chart datum (LAT). Major periods: start time; they last 2 hours. Activity: based on the moon phase and the solunar periods.
Tide coefficient and range in October
The biggest tides of the month came from October 26 to 28 (coefficient 101, 9.6 ft range). The smallest, from October 18 to 19 (coefficient 29, 3.2 ft).
Type of tide
In Restelo the tide is semidiurnal: two high and two low tides a day, of similar height. Types of tides
2026 extremes: the highest tide of the year is on August 13 (11.3 ft) and the lowest, on August 13 (0.6 ft).
Reference levels
- Highest astronomical tide (HAT)12.0 ft
- Mean higher high water (MHHW)9.5 ft
- Mean high water (MHW)9.2 ft
- Mean sea level (MSL)5.9 ft
- Mean low water (MLW)2.6 ft
- Mean lower low water (MLLW)2.4 ft
- Lowest astronomical tide (LAT)0.0 ft
Heights above chart datum: the lowest astronomical tide (LAT), the zero of nautical charts in Europe.
Questions about the tides in Restelo
What time is high tide today in Restelo?
High tide today is at 3:19 am (10.9 ft) and 3:43 pm (10.6 ft). Low tide is at 9:28 am and 9:45 pm.
What time is high tide tomorrow in Restelo?
On Thursday, October 29, high tide at 4:04 am and 4:32 pm and low tide at 10:15 am and 10:31 pm.
What is today's tide coefficient?
100: big spring tides. 70 is an average tide here; 90 and above means spring tides; below 45, neap tides.
When are the next spring tides?
From October 26 to 28, after the new or full moon, with the moon near perigee, so they will be bigger than usual.
How many tides a day are there in Restelo?
The tide is semidiurnal: two high and two low tides a day, of similar height. Each high tide comes about 50 minutes later than the day before.
What are the heights measured from?
From chart datum: the lowest astronomical tide (LAT), the zero of nautical charts in Europe. That is why a low tide can be negative: that day the water drops below that zero.
Can I use these tides for navigation?
No. They are astronomical predictions for planning fishing and outings; for navigation use official publications and nautical charts.
More about Restelo today
Learn more
Restelo has no station of its own, so we use the tide at Cascais (TICON-4), 11 mi away. On the open coast the difference is usually a few minutes and inches; inside estuaries, rivers and enclosed bays it can be much larger. Station data attribution: Slackwater database (https://github.com/openwatersio/slackwater-database). Source: Hart-Davis, M., Dettmering, D., Seitz, F. (2025), TICON-4: TIdal CONstants based on GESLA-4 sea-level records, SEANOE, https://doi.org/10.17882/109129. Licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Modified: see https://github.com/openwatersio/slackwater-database#modifications-to-source-data