Enter your Location, Date, and Days to Forecast into the Tide Calculator, then choose your preferred Time Format and Height Unit to get your Next High Tide, Next Low Tide, exact tide times, and the full Tidal Range for your coastal window.
Next High Tide
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High Tide Time
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Next Low Tide
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Low Tide Time
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Tidal Range
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Moon Phase
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Tide predictions are typically accurate within 15 minutes for timing and within 0.1 feet for height. Accuracy may vary based on local weather conditions and geographic factors.
Tides are caused primarily by the gravitational pull of the moon and sun on Earth's oceans. The moon has the strongest influence due to its proximity to Earth.
High tide occurs when water levels are at their highest point, while low tide is when water levels are at their lowest. Most locations experience two high tides and two low tides per day.
During new and full moons (spring tides), tidal ranges are larger with higher high tides and lower low tides. During quarter moons (neap tides), tidal ranges are smaller.
While predicted tide times remain constant, weather conditions like strong winds, barometric pressure changes, and storms can affect actual water levels by several feet.
Some locations, particularly in the Gulf of Mexico and parts of Southeast Asia, experience diurnal tides with only one high and one low tide per day due to their geographic position.
Tidal range is the difference in height between high tide and low tide. It varies by location and can range from less than a foot to over 50 feet in extreme locations like the Bay of Fundy.
Tides can be accurately predicted years in advance because they follow predictable astronomical cycles. However, most tide tables provide predictions for the current year.