# SurfTideWatch (Tide graph) — Tide graph app for Watch.

> Apple Watch app displaying tide graphs and astronomical events for marine sports. (iPhone/iPad app by Mitsuhiro Shirai.)

- Source: https://appshunter.io/ios/app/surftidewatch-tide-graph/id1507871573 (this page in markdown: same URL + `.md`)
- Developer: [Mitsuhiro Shirai](https://appshunter.io/developer/602643484)
- Category: Sports, Weather
- Price: Free
- Rating: 3.60/5 from 8 App Store ratings · 41 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.2 · 27 MB
- Languages: American English, Japanese
- Released: 2020-04-18
- Data updated: 2026-08-14
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/surftidewatch-tide-graph/id1507871573/reviews.md

## What is SurfTideWatch (Tide graph)?

"SurfTideWatch" is an app that show a tide graph on Apple Watch.
It can be able to select the places to use from about 10,000 tide points around the world on iPhone and synchronize with Apple Watch.
You can select from the map a tide place. Also you can change the place name to make it easier to understand.

It can store up to 5 places on Apple Watch. 
It can be saved is for 2 weeks of tide data, but it can be updated from your iPhone at any time.
It can be shown graphically and you can check astronomical events such as sunrise, sunset, high tide, low tide and more infomation.

It also supports watch's complications. Some complications can display the next tide event information.

The following is a simple method for creating tide data on your iPhone.
For details, check to "Help & Support" from "Settings" in the app.

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1, Tap the "+" button at the bottom right of the main screen

2, Select which area tide places will be shown on the map
   You can choose from the following 7 areas.

 - U.S. Upper East Coast (Maine through Virginia)	
 - U.S. Lower East Coast (North Carolina through Florida Keys)
 - U.S. Gulf Coast (East to West)
 - U.S. West Coast (North to South)
 - Northern sites outside contiguous U.S. (except Japan)
 - Southern sites outside contiguous U.S.
 - Japan and nearby sites

   When the selection is over, it will be the map screen
   It takes some time to process the first time.

3, Tap the map pin shown on the map and select the place to register
    Places that are close together are clustered.
    Clustering is released when you zoom the map.
    You can select multiple places.

4, Tap the "+" navigation button at the top right of the map screen and to return to the main screen

5, Tap "Update All" on the right side of the screen to get tide data
    This takes a little time.

The operation up to this point , the preparation of tide data is complete.

Finally, send the tide data to your Apple Watch.
If Apple Watch is connected to iPhone, tap "≪" at the top center of the screen to synchronize.
If it is not connected, tap "Save to iCloud". In this case, Apple Watch will automatically sync when it comes online.

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Note:

This app is an app for showing a tide information on Apple Watch. It cannot show tide data on the iPhone alone.

This app can be used for marine sports such as surfing and fishing, but please do not use it for nautical purposes.

To use iCloud, you must be signed in to iCloud on your iPhone.

## Key features

- Tide graph visualization
- Global tide point selection (10,000+)
- Synchronization with Apple Watch
- Customizable place names
- Astronomical event display (sunrise, sunset)
- Apple Watch complications support

## Recent user reviews (10 of 41)

All indexed reviews: https://appshunter.io/ios/app/surftidewatch-tide-graph/id1507871573/reviews.md

### 1/5 — データが送れない

*2026-03-29*

データーが送れなくて困っています。アップデートされないでしょうか。

### 1/5 — 案の定

*2025-11-30*

11月20日からデータ更新が出来ない。
とうとう使えなくなってしまった…

### 1/5 — 数年使用してます

*2025-11-29*

2025年10月？から更新が出来なくなってしまいました。
改善お願いします！

### 1/5 — だめ

*2025-11-22*

更新出来ない

### 1/5 — 更新できない

*2025-11-12*

データ更新できなくなりました

### 1/5 — データの更新

*2025-11-03*

データの更新が出来ません。
対応お願いします。

### 3/5 — なんとかして

*2025-11-01*

最近　更新ができなくて困ってます。

### 1/5 — 更新出来ないけど

*2025-10-29*

何が原因？

### 1/5 — 更新できなくなった

*2025-10-23*

更新できなくなった

### 1/5 — データ取得できず

*2025-10-15*

タイドデータが取得できないので、使えません。

## Frequently asked questions about SurfTideWatch (Tide graph)

### Does SurfTideWatch have ads?

Yes, SurfTideWatch contains advertisements. As a free application, it relies on ads to support its development and operation.

### What devices does SurfTideWatch support?

SurfTideWatch is designed to run on Apple Watch, iPhone, and iPod. The primary display and functionality are on the Apple Watch, with iPhone used for setup and data management.

### How many tide places can I save on Apple Watch?

You can store up to 5 tide places directly on your Apple Watch. These places can be updated from your iPhone at any time to ensure you have the latest tide data.

### What kind of tide data does SurfTideWatch provide?

SurfTideWatch provides 2 weeks of tide data, displayed graphically. It also shows astronomical events like sunrise, sunset, high tide, and low tide.

### Can I use SurfTideWatch offline?

While the app requires an iPhone connection for initial setup and data updates, the tide information can be synchronized to your Apple Watch for viewing. Offline viewing on the Watch is possible once data is synced.

### How often is SurfTideWatch updated?

The app was last updated on September 24, 2024, with version 1.0.12. This indicates regular updates to improve functionality and data accuracy.

### Is SurfTideWatch suitable for professional nautical use?

No, SurfTideWatch is intended for marine sports like surfing and fishing. It is explicitly stated that the app should not be used for nautical purposes.

### What is the age rating for SurfTideWatch?

SurfTideWatch has an age rating of 4+. This suggests it is suitable for a wide range of users, including younger individuals interested in marine activities.

## Version history (last 5 releases)

### 1.0.12 — 2024-09-24

Reduced the load on the weather information server.

### 1.0.11 — 2021-09-27

There was a change in tide's service site data so updated how to get tide data.

### 1.0.10 — 2021-04-29

Fixed some bugs.

### 1.0.9 — 2021-04-25

Improved some functions and fixed bugs.

### 1.0.8 — 2021-01-26

Improved some functions.

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## More apps by Mitsuhiro Shirai

- [SimpleTide for marine sports](https://appshunter.io/ios/app/simpletide-for-marine-sports/id602646447)
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- [Surfing record - SurfLog7](https://appshunter.io/ios/app/surfing-record-surflog7/id1250734719)
- [RS Station (michi-no-eki map)](https://appshunter.io/ios/app/rs-station-michi-no-eki-map/id1356047174)

All apps by Mitsuhiro Shirai: https://appshunter.io/developer/602643484

## Related topics

[tides graph](https://appshunter.io/ios/topics/tides-graph)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-14.*