Xiuying tides
Today, Thursday, October 29, 2026 · local time (GMT+8) · Hainan, China- 8:13 am8.6 ft
- 5:21 pm1.4 ft
- Tide now
- 1.8 ft ↓ falling · low 5:21 pm (1.4 ft)
- Coefficient
- 101 · big spring tides
- Range today
- 7.2 ft
Today there is high tide at 8:13 am (8.6 ft) and low tide at 5:21 pm. Tide coefficient 101. Right now the tide is falling toward the low tide at 5:21 pm. In Xiuying the tide is mixed, mainly diurnal: on many days there is only one high and one low tide. The next spring tides: from October 27 to 29.
Today's high and low tides
- ▲ High tide 8:13 am 8.6 ft · coef. 101
- ▼ Next low tide 5:21 pm 1.4 ft
↓ Falling The tide is falling. 1 h 16 min to low tide at 5:21 pm.
Tide coefficient 101 for the 8:13 am high tide. Big spring tides. The water rises and falls 7.2 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 TLT. 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 | Coef. | Moon | Major periods | Activity |
|---|---|---|---|---|---|---|---|
| Today, Thu 29 | 6:39 am · 6:06 pm | High tide 8:13 am · 8.6 ft | Low tide 5:21 pm · 1.4 ft | Coef. 101 | 88% | Major periods 1:44 am · 2:17 pm | Medium |
| Fri 30 | 6:39 am · 6:06 pm | High tide 8:29 am · 9.2 ft | Low tide 6:20 pm · 1.3 ft | Coef. 113 | 79% | Major periods 2:49 am · 3:21 pm | Medium |
| Sat 31 | 6:40 am · 6:05 pm | High tide 8:56 am · 9.6 ft | Low tide 7:28 pm · 1.5 ft | Coef. 120 | 69% | Major periods 3:53 am · 4:23 pm | Medium |
| Sun 1 | 6:40 am · 6:04 pm | High tide 9:30 am · 9.5 ft | Low tide 8:53 pm · 1.9 ft | Coef. 119 | 58% | Major periods 4:53 am · 5:21 pm | Medium |
| Mon 2 | 6:41 am · 6:04 pm | High tide 10:08 am · 9.1 ft | Low tide 10:39 pm · 2.3 ft | Coef. 110 | Last quarter | Major periods 5:48 am · 6:14 pm | Medium |
| Tue 3 | 6:41 am · 6:03 pm | High tide 10:52 am · 8.3 ft | — | Coef. 95 | 36% | Major periods 6:39 am · 7:03 pm | Medium |
| Wed 4 | 6:42 am · 6:03 pm | Low tide 12:05 am · 2.8 ft | High tide 2:51 pm · 7.4 ft | Coef. 72 | 26% | Major periods 7:26 am · 7:49 pm | Low |
▲ high tide · ▼ low tide · heights above TLT. 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 come on October 31 (coefficient 120, 8.1 ft range). The smallest, on October 25 (coefficient 29, 3.2 ft).
Type of tide
In Xiuying the tide is mixed, mainly diurnal: on many days there is only one high and one low tide. Types of tides
2026 extremes: the highest tide of the year is on November 28 (9.6 ft) and the lowest, on June 17 (-0.3 ft).
Reference levels
- Highest astronomical tide (HAT)9.8 ft
- Mean higher high water (MHHW)7.4 ft
- Mean high water (MHW)6.8 ft
- Mean sea level (MSL)5.2 ft
- Mean low water (MLW)3.7 ft
- Mean lower low water (MLLW)2.5 ft
- Lowest astronomical tide (LAT)-0.4 ft
Heights above TLT.
Questions about the tides in Xiuying
What time is high tide today in Xiuying?
High tide today is at 8:13 am (8.6 ft). Low tide is at 5:21 pm.
What time is high tide tomorrow in Xiuying?
On Friday, October 30, high tide at 8:29 am and low tide at 6:20 pm.
What is today's tide coefficient?
101: 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 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 Xiuying?
The tide is mixed, mainly diurnal: on many days there is only one high and one low tide. Each high tide comes about 50 minutes later than the day before.
What are the heights measured from?
From TLT. 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 Xiuying today
Learn more
Tides from the Haikou station (TICON-4), 1.3 mi from Xiuying. Times and heights are its predictions. 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