Chongming tides
Today, Thursday, October 29, 2026 · local time (GMT+8) · Shanghái, China- 1:15 am3.6 ft
- 1:35 pm5.9 ft
- 7:22 am-3.9 ft
- 8:25 pm-4.3 ft
- Tide now
- -3.9 ft ↑ rising · high 1:35 pm (5.9 ft)
- Coefficient
- 92 · spring tides
- Range today
- 10.2 ft
Chongming has no tide station nearby: this tide is calculated with a global ocean model. It is approximate (it may differ from the real tide by a few minutes and inches) and not for navigation. How we calculate it
Today there are high tides at 1:15 am (3.6 ft) and 1:35 pm (5.9 ft) and low tides at 7:22 am and 8:25 pm. Tide coefficient 92. Right now the tide is rising toward the high tide at 1:35 pm. In Chongming the tide is mixed: two high and two low tides a day, but of quite different heights. The next spring tides: from October 27 to 29.
Today's high and low tides
- ▲ High tide 1:15 am 3.6 ft · coef. 92
- ▼ Low tide 7:22 am -3.9 ft
- ▲ Next high tide 1:35 pm 5.9 ft · coef. 89
- ▼ Low tide 8:25 pm -4.3 ft
↑ Rising The tide is rising. 6 h 1 min to high tide at 1:35 pm.
Tide coefficient 92 for the 1:15 am high tide and 89 for the 1:35 pm high tide. Spring tides. The water rises and falls 10.2 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 mean sea level. 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, Thu 29 | 6:07 am · 5:07 pm | High tide 1:15 am · 3.6 ft | Low tide 7:22 am · -3.9 ft | High tide 1:35 pm · 5.9 ft | Low tide 8:25 pm · -4.3 ft | Coef. 92 | 88% | Major periods 12:57 am · 1:29 pm | Medium |
| Fri 30 | 6:07 am · 5:06 pm | High tide 2:05 am · 3.1 ft | Low tide 8:09 am · -3.4 ft | High tide 2:24 pm · 5.6 ft | Low tide 9:23 pm · -4.0 ft | Coef. 85 | 79% | Major periods 2:01 am · 2:34 pm | Medium |
| Sat 31 | 6:08 am · 5:05 pm | High tide 3:01 am · 2.6 ft | Low tide 9:03 am · -2.8 ft | High tide 3:18 pm · 5.2 ft | Low tide 10:28 pm · -3.7 ft | Coef. 76 | 69% | Major periods 3:05 am · 3:36 pm | Medium |
| Sun 1 | 6:09 am · 5:04 pm | High tide 4:04 am · 2.2 ft | Low tide 10:10 am · -2.3 ft | High tide 4:18 pm · 4.7 ft | Low tide 11:37 pm · -3.6 ft | Coef. 67 | 58% | Major periods 4:06 am · 4:34 pm | Medium |
| Mon 2 | 6:10 am · 5:03 pm | High tide 5:15 am · 2.0 ft | Low tide 11:28 am · -2.0 ft | High tide 5:24 pm · 4.3 ft | — | Coef. 61 | Last quarter | Major periods 5:01 am · 5:27 pm | Medium |
| Tue 3 | 6:11 am · 5:03 pm | Low tide 12:44 am · -3.7 ft | High tide 6:33 am · 2.1 ft | Low tide 12:47 pm · -1.9 ft | High tide 6:33 pm · 3.9 ft | Coef. 60 | 36% | Major periods 5:52 am · 6:16 pm | Medium |
| Wed 4 | 6:11 am · 5:02 pm | Low tide 1:45 am · -3.8 ft | High tide 7:44 am · 2.5 ft | Low tide 1:59 pm · -2.2 ft | High tide 7:39 pm · 3.7 ft | Coef. 65 | 26% | Major periods 6:39 am · 7:02 pm | Medium |
▲ high tide · ▼ low tide · heights above mean sea level. 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 95, 10.4 ft range). The smallest, on October 19 (coefficient 33, 4.8 ft).
Type of tide
In Chongming the tide is mixed: two high and two low tides a day, but of quite different heights. Types of tides
2026 extremes: the highest tide of the year is on December 26 (6.9 ft) and the lowest, on July 17 (-5.9 ft).
Reference levels
- Mean sea level (MSL)0.0 ft
Heights above mean sea level.
Questions about the tides in Chongming
What time is high tide today in Chongming?
High tide today is at 1:15 am (3.6 ft) and 1:35 pm (5.9 ft). Low tide is at 7:22 am and 8:25 pm.
What time is high tide tomorrow in Chongming?
On Friday, October 30, high tide at 2:05 am and 2:24 pm and low tide at 8:09 am and 9:23 pm.
What is today's tide coefficient?
92: 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 27 to 29, 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 Chongming?
The tide is mixed: two high and two low tides a day, but of quite different heights. Each high tide comes about 50 minutes later than the day before.
What are the heights measured from?
From mean sea level. 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 Chongming today
Tides near Chongming
Each place with its own tide station; next to it, the time of its first high tide today.
Learn more
Chongming has no tide station nearby: its tide is calculated with the global EOT20 model, from the nearest model cells offshore (the first one 3.2 mi away). It may differ from the real tide by a few minutes and inches, and more with wind or storms. Heights are above mean sea level, not chart datum, so low tides are negative. Not for navigation. Model attribution: Hart-Davis et al. (2021), EOT20 global empirical ocean tide model, SEANOE, https://doi.org/10.17882/79489, CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Modified by TidePlanet: constants interpolated from the nearest model cells offshore; heights above mean sea level.