ariasurf

まてが浜

上天草市, 日本

Sand

Right now

Conditions at 11:00 AM Japan Standard Time.

Poor

Flat (0.1 m) at 2 s, heading toward S, with moderate cross-onshore wind toward SSW.

Swell

0.1 m

2 s

Wind

12 km/h

SSW

Cross-onshore

Tide

4.3 m

Falling

Weather

28 °C

Mostly clear

28 °C water

7-day forecast

Wave height and the best conditions expected each day.

Hourly forecast

Thursday, September 17, 2026

Time	Rating	Swell	Swell direction	Wind	Wind direction	Tide	Weather
12 AM	Poor	0.1 m · 2 s	S	12 km/h · 20 km/h gusts	SW Onshore	4.4 m	Mostly clear · 26 °C
1 AM	Poor	0.1 m · 2 s	S	12 km/h · 21 km/h gusts	SW Onshore	3.7 m	Mostly clear · 25 °C
2 AM	Poor	0.1 m · 2 s	S	12 km/h · 19 km/h gusts	SW Onshore	2.9 m	Mostly clear · 25 °C
3 AM	Poor	0.1 m · 2 s	S	13 km/h · 21 km/h gusts	SW Onshore	2.2 m	Mostly clear · 25 °C
4 AM	Poor	0.1 m · 2 s	S	15 km/h · 24 km/h gusts	SW Onshore	1.6 m	Mostly clear · 25 °C
5 AM	Poor	0.1 m · 2 s	S	15 km/h · 24 km/h gusts	SW Onshore	1.4 m	Mostly clear · 25 °C
6 AM	Poor	0.1 m · 2 s	S	15 km/h · 25 km/h gusts	SW Onshore	1.6 m	Mostly clear · 25 °C
7 AM	Poor	0.1 m · 2 s	S	16 km/h · 25 km/h gusts	SW Onshore	2 m	Mostly clear · 25 °C
8 AM	Poor	0.1 m · 2 s	S	16 km/h · 25 km/h gusts	SW Onshore	2.7 m	Mostly clear · 26 °C
9 AM	Poor	0.1 m · 2 s	S	15 km/h · 26 km/h gusts	SW Onshore	3.4 m	Mostly clear · 26 °C
10 AM	Poor	0.1 m · 2 s	S	13 km/h · 27 km/h gusts	SW Onshore	4 m	Mostly clear · 27 °C
11 AM	Poor	0.1 m · 2 s	S	12 km/h · 28 km/h gusts	SSW Onshore	4.3 m	Mostly clear · 28 °C
12 PM	Poor	0 m · 2 s	S	12 km/h · 27 km/h gusts	SSW Onshore	4.3 m	Mostly clear · 28 °C
1 PM	Poor	0 m · 2 s	S	9 km/h · 25 km/h gusts	S Onshore	4 m	Mostly clear · 29 °C
2 PM	Poor	0 m · 2 s	S	7 km/h · 26 km/h gusts	S Onshore	3.4 m	Partly cloudy · 29 °C
3 PM	Poor	0 m · 2 s	S	8 km/h · 30 km/h gusts	S Onshore	2.9 m	Mostly clear · 29 °C
4 PM	Poor	0 m · 2 s	S	7 km/h · 29 km/h gusts	S Onshore	2.5 m	Mostly clear · 29 °C
5 PM	Poor	0 m · 2 s	S	7 km/h · 16 km/h gusts	SSW Onshore	2.3 m	Overcast · 29 °C
6 PM	Poor	0 m · 2 s	S	8 km/h · 16 km/h gusts	WNW Offshore	2.4 m	Mostly clear · 28 °C
7 PM	Poor	0 m · 2 s	S	6 km/h · 10 km/h gusts	WNW Offshore	2.7 m	Mostly clear · 28 °C
8 PM	Poor	0 m · 1 s	S	5 km/h · 11 km/h gusts	WNW Offshore	3.2 m	Mostly clear · 27 °C
9 PM	Poor	0 m · 2 s	S	6 km/h · 15 km/h gusts	SSW Onshore	3.7 m	Light drizzle · 27 °C
10 PM	Poor	0 m · 2 s	SE	8 km/h · 18 km/h gusts	SW Onshore	4.2 m	Light drizzle · 26 °C
11 PM	Poor	0 m · 3 s	ENE	7 km/h · 18 km/h gusts	WSW Cross-shore	4.3 m	Mostly clear · 25 °C