Choshi surfForecast / Chiba / Japan

information circle12 Day Weather and Surf, issued 2 pm Monday 07 Jul 2025 JST
Forecast update in -1hr 56 min 06 s Forecast update imminent
Choshi surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Choshi sea temperature is
77.2°F
(Which is 2.2°F warmer than normal for this time of year)


Best Forecast Surf Conditions for Choshi this week:

The surf forecast for Choshi over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Jul 08) at 3AM. The primary swell is predicted to be 3ft and 10s period with a secondary swell of 1ft and 12s. The wind is predicted to be cross-onshore as the swell arrives.

The most powerful waves expected at Choshi in the next 12 days are 5ft 9s and forecast to arrive on Monday (Jul 14) at 12AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 5ft 7s period and expected on Friday (Jul 11) at 6AM.

Wave TypeTime (JST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Tue 8th Jul)3.5ft (1.0m) 10s
Best Surf 3AM (Tue 8th Jul)3.5ft (1.0m) 10s
Most Powerful12AM (Mon 14th Jul)4.5ft (1.4m) 9s

Table - best surf conditions forecast for Choshi over the next 12 days.

Updates in -1 hr 56 min 06 s Forecast update imminent
Mon
07
Tuesday
08
Wednesday
09
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Sat
19
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (ft) & direction (?)
3
ESE
3.5
ESE
2.5
ESE
2.5
E
2
E
1.5
E
1.5
E
1.5
E
2
ESE
2
ESE
1.5
ESE
2.5
SE
2.5
SE
4.5
ENE
3.5
ENE
3.5
ENE
3
ENE
2.5
E
3
ESE
4.5
E
4.5
E
4
E
3.5
E
3.5
E
4
ESE
4.5
ESE
4.5
ESE
4.5
ESE
5.5
SSE
6.5
SSE
7
SSE
8
SSE
10
SSW
7.5
S
6
SSW
2.5
SSE
Period(s) (?)1010998999111110109776699991091010101010119899987
Wave
Graph
(?)Metric surfscale
Energy (?)174240179110879396719710571175812422061681491422133662832712292303042923253808206945939382318115764495
Wind
(mph)
5
SSE
10
S
10
SSE
10
S
10
SSW
10
S
15
S
10
S
5
SSE
20
NE
20
NNE
20
NE
20
NE
20
NNE
20
NNE
20
NNE
15
NE
10
ESE
15
SE
10
SE
20
SE
30
SSE
30
S
20
S
15
SSE
20
S
20
SSE
30
SSE
20
SSE
15
SSE
15
SSE
10
SE
10
SE
10
SE
5
E
10
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
oncross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
oncrosscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
crossonononononcross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
onononononcross-
on
cross-
on
High Tide
/ height (ft)
3:40PM
3.58
12:44AM
4.17
4:20PM
3.84
1:35AM
4.3
4:54PM
4.04
2:22AM
4.43
5:26PM
4.17
3:06AM
4.59
5:57PM
4.23
3:48AM
4.72
6:26PM
4.23
4:31AM
4.76
6:54PM
4.23
5:16AM
4.72
7:20PM
4.23
6:03AM
4.56
7:44PM
4.2
6:56AM
4.27
8:08PM
4.23
7:57AM
3.9
8:33PM
4.27
9:18AM
3.51
9:01PM
4.3
11:27AM
3.28
Low Tide
/ height (ft)
7:27PM
3.25
8:42AM
0.75
8:31PM
3.28
9:21AM
0.49
9:20PM
3.28
9:59AM
0.26
10:00PM
3.22
10:37AM
0.13
10:38PM
3.15
11:13AM
0.1
11:14PM
3.02
11:50AM
0.2
11:53PM
2.85
12:25PM
0.43
12:34AM
2.62
1:00PM
0.79
1:21AM
2.36
1:34PM
1.28
2:14AM
2.1
2:07PM
1.84
3:16AM
1.8
2:40PM
2.43
4:30AM
1.48
Mon
07
Tuesday
08
Wednesday
09
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Sat
19
Sunrise--4:26--4:28--4:28--4:28--4:28--4:30--4:31--4:31--4:31--4:33--4:33--4:33
Sunset6:55--6:54--6:54--6:54--6:53--6:53--6:53--6:52--6:52--6:52--6:52--6:51--
clearclearclearclearclearclearclearclearpart cloudcloudcloudpart cloudcloudpart cloudcloudpart cloudrain showersmod rainrain showersthunderstorm thunderstorm thunderstorm rain showersclearclearthunderstorm thunderstorm light rainthunderstorm thunderstorm part cloudthunderstorm clearclearclearrain showers
Rain (in)
----------------0.30.40.20.40.50.20.0--0.60.40.20.20.1-0.0---0.0
Temp. °F827981817981817979737272727272737777797979818182817979777981817979797779
Feels °F (?)888486848484828484726864666666738181818679757284828177727982848282828282

Short Range Forecast: Mostly dry. Warm (max 82°F on Mon afternoon, min 77°F on Mon night). Wind will be generally light.

Days 3-6 Weather Summary Moderate rain (total 0.6in), heaviest on Sun morning. Warm (max 77°F on Sat night, min 70°F on Thu night). Mainly fresh winds.

Days 6-9 Weather Summary Heavy rain (total 2.2in), heaviest during Tue night. Warm (max 82°F on Tue morning, min 73°F on Tue night). Mainly near gales.

Long Range Forecast: Moderate rain (total 0.6in), heaviest on Wed afternoon. Warm (max 81°F on Thu morning, min 77°F on Wed afternoon). Winds decreasing (strong winds from the SSE on Wed afternoon, light winds from the ENE by Fri night).

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Information about the Choshi Surf forecast

The above surf forecast table for Choshi provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Choshi can be found by selecting the local surf guide option on the grey menu. Our Choshi surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Choshi) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Choshi may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Choshi is 4 km (2 miles) from Hasaki. If you plan a holiday in Chiba, look for hotels and other accommodation in Hasaki. Hasaki has rooms for a wide range of budgets as well as car hire and transport links.

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