Weather in Minamibōsō

14-day forecast · updated today, Thursday, October 29, at 10:06 pm (GMT+9)

Now · overcast 56 °F

Feels like: 57 °F
Low / high: 48 / 67 °F
Rain: 95% · 0.05 in
Wind: 1 mph SW

↘ 30.22 inHg · falling

Today in Minamibōsō: light drizzle, 48 °F to 67 °F, with a 95% chance of rain (0.05 in) and a light air from the southwest (1 mph). Tomorrow, overcast, 56 °F to 73 °F and a 57% chance of rain. The warmest day of the week is Friday 30, at 73 °F.

Temperatures for the next 14 days

67° 48°
Today
73° 56°
Fri 30
73° 57°
Sat 31
66° 52°
Sun 1
68° 54°
Mon 2
72° 53°
Tue 3
60° 55°
Wed 4
62° 54°
Thu 5
75° 60°
Fri 6
60° 53°
Sat 7
58° 49°
Sun 8
53° 49°
Mon 9
62° 48°
Tue 10
55° 44°
Wed 11

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	High tides	Model
Today · 29	Light drizzle	48 / 67 °F	95% · 0.05 in	6 mph ENE	4.6 ft	7:08 am · 5:35 pm	ECMWF
Fri 30	Overcast	56 / 73 °F	57%	10 mph SSW	7.0 ft	7:59 am · 6:04 pm	ECMWF
Sat 31	Overcast	57 / 73 °F	39%	11 mph WNW	6.7 ft	8:57 am · 6:38 pm	ECMWF
Sun 1	Drizzle	52 / 66 °F	25% · 0.09 in	6 mph NE	6.2 ft	10:12 am · 7:30 pm	ECMWF
Mon 2	Light rain	54 / 68 °F	68% · 0.59 in	13 mph SW	7.4 ft	11:48 am · 9:10 pm	ECMWF
Tue 3	Light rain	53 / 72 °F	63% · 0.11 in	8 mph NE	7.5 ft	1:00 pm · 11:36 pm	ECMWF
Wed 4	Drizzle	55 / 60 °F	45% · 0.13 in	10 mph NNE	7.0 ft	1:44 pm	ECMWF
Thu 5	Light drizzle	54 / 62 °F	76% · 0.21 in	10 mph NNE	6.7 ft	1:19 am · 2:16 pm	ECMWF
Fri 6	Overcast	60 / 75 °F	54%	13 mph WSW	7.8 ft	2:28 am · 2:44 pm	ECMWF
Sat 7	Overcast	53 / 60 °F	12%	9 mph NNE	6.2 ft	3:26 am · 3:08 pm	ECMWF
Sun 8	Light drizzle	49 / 58 °F	18% · 0.09 in	10 mph NE	5.2 ft	4:18 am · 3:31 pm	ECMWF
Mon 9	Drizzle	49 / 53 °F	22% · 0.17 in	12 mph NNE	—	5:08 am · 3:53 pm	ECMWF
Tue 10	Drizzle	48 / 62 °F	22% · 0.09 in	13 mph N	—	5:53 am · 4:15 pm	ECMWF
Wed 11	Mainly clear	44 / 55 °F	22%	11 mph N	—	6:34 am · 4:39 pm	ECMWF

Each day comes from the best model covering this spot: regional ones first (HRRR and NBM in the U.S., AROME, ICON-EU), then ECMWF; day 16, NOAA GFS. Waves: Météo-France up to day 10, then ECMWF WAM, coarser and further offshore. High tides: our own tide calculation.

Today, every 3 hours

Time	12:00 am	3:00 am	6:00 am	9:00 am	12:00 pm	3:00 pm	6:00 pm	9:00 pm
Sky	Partly cloudy	Mainly clear	Mainly clear	Overcast	Overcast	Light drizzle	Light drizzle	Overcast
Temperature	53°	50°	48°	60°	67°	66°	59°	56°
Chance of rain	0%	2%	12%	0%	12%	88%	82%	10%
Rain	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.01 in	0.00 in
Wind (mph)	6 ENE	7 NE	5 NE	5 N	6 ESE	3 SE	2 NW	2 SSW
Humidity	62%	64%	68%	63%	64%	75%	98%	99%
UV	0	0	0	1	2	1	0	0
Model	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF

Do the models agree?

Medium confidence

They broadly agree, but not quite on rain today: take it with some caution.

What 4 forecast models say for the next few days. The closer they are, the more reliable the forecast.

HighRainWind

Do the models agree? · High
High (°F)	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	67°	73°	73°	66°	68°	72°	60°
AIFS	65°	70°	71°	69°	64°	68°	62°
GFS	66°	72°	71°	64°	71°	70°	61°
ICON	67°	74°	73°	67°	73°	71°	64°
Confidence	high	high	high	high	medium	high	high

Do the models agree? · Rain
Rain	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	0.05 in	0	0	0.09 in	0.59 in	0.11 in	0.13 in
AIFS	0.17 in	0.14 in	0.12 in	0	0.38 in	0.05 in	0.68 in
GFS	0.02 in	0.04 in	0	0.04 in	0.41 in	0.03 in	0.36 in
ICON	0.13 in	0	0.11 in	0	0	0	0
Confidence	medium	medium	medium	medium	medium	medium	medium

Do the models agree? · Wind
Wind (mph)	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	617	1022	1123	614	1342	836	1026
AIFS	6	7	9	7	6	7	9
GFS	518	1328	1430	821	1735	613	1433
ICON	719	721	821	720	1233	926	822
Confidence	high	high	high	high	medium	high	high

Chance of rain from the ensemble models

Model	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF (51 scenarios)	95%	57%	39%	25%	68%	63%	45%
GFS (GEFS, 31 scenarios)	100%	87%	25%	65%	74%	54%	62%

Each model's day runs midnight to midnight local time; models that reach fewer days are left blank. Rain: daily total. Wind: the day's highest average wind and, in small type, the strongest gust. Highlighted: values that stand out from the rest. The chance of rain comes from many runs of the same model with slightly different starting data.

Outlook

How the coming weeks and months compare with what is normal for the time of year. It is a trend, not a day-by-day forecast.

Next few weeks, compared with normal: a bit warmer, normal rain and a warmer sea.

Next 6 weeks

When	TemperatureTemp.	Rain	Sea	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	Normal −0.2 °F	A bit above +29%	Above +2.2 °F	—
Nov 9 – Nov 15Nov 9–Nov 15	Normal 0.0 °F	Normal	A bit above +1.6 °F	—
Nov 16 – Nov 22Nov 16–Nov 22	A bit above +1.6 °F	Normal	Above +2.0 °F	65° / 62°
Nov 23 – Nov 29Nov 23–Nov 29	A bit above +2.2 °F	Normal	Above +2.0 °F	64° / 60°
Nov 30 – Dec 6Nov 30–Dec 6	A bit above +2.3 °F	Normal	Above +2.0 °F	62° / 58°

Coming months

When	TemperatureTemp.	Rain	Sea
November	Above +4.0 °F	A bit above +33%	Well above +4.9 °F
December	Above +3.2 °F	A bit above +48%	Well above +4.0 °F
January	Above +3.1 °F	Normal	Well above +3.8 °F
February	Above +4.1 °F	A bit above +30%	Well above +4.7 °F
March	Above +4.0 °F	A bit above +21%	Well above +4.9 °F

Weeks: ECMWF 46-day (average of its scenarios), against the normal of the last 20 years for those dates. Months: ECMWF SEAS5. Rain: total against normal. The further ahead, the closer it gets to normal and the less detail it can give.

Minamibōsō climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Minamibōsō is from July to August: highs of 82 °F to 85 °F, about 10 rainy days a month and 6 hours of sunshine a day.

Typhoon season: from July to October, peaking in August. In the last 30 years (1996–2025), 36 tropical cyclones passed within 93 mi of Minamibōsō, one or two a year; 18 of them with hurricane-force winds (74 mph or more). The most recent: Peipah, in September 2025.

51° 35°

JanJ
51° 35°

FebF
56° 41°

MarM
64° 50°

AprA
71° 57°

MayM
75° 64°

JunJ
82° 71°

JulJ
85° 73°

AugA
80° 68°

SepS
71° 58°

OctO
63° 49°

NovN
55° 39°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves	Cyclones
JanuaryJan	51°	35°	3.12 in	5	5.5	61°	4.6 ft	–
FebruaryFeb	51°	35°	3.73 in	6	5.2	59°	4.8 ft	–
MarchMar	56°	41°	6.00 in	10	5.5	59°	5.0 ft	–
AprilApr	64°	50°	5.61 in	10	5.7	62°	4.7 ft	–
MayMay	71°	57°	6.30 in	10	5.7	66°	4.1 ft	–
JuneJun	75°	64°	8.68 in	12	4.0	70°	4.0 ft	3
JulyJul	82°	71°	5.59 in	11	5.1	75°	4.1 ft	8
AugustAug	85°	73°	5.49 in	10	6.6	79°	4.5 ft	10
SeptemberSep	80°	68°	8.90 in	13	4.7	77°	4.8 ft	8
OctoberOct	71°	58°	9.82 in	11	4.1	73°	5.2 ft	7
NovemberNov	63°	49°	5.55 in	8	4.3	69°	4.5 ft	–
DecemberDec	55°	39°	3.44 in	6	4.6	65°	4.7 ft	–

Month	Water	Waves	Cyclones
Jan	61°	4.6 ft	–
Feb	59°	4.8 ft	–
Mar	59°	5.0 ft	–
Apr	62°	4.7 ft	–
May	66°	4.1 ft	–
Jun	70°	4.0 ft	3
Jul	75°	4.1 ft	8
Aug	79°	4.5 ft	10
Sep	77°	4.8 ft	8
Oct	73°	5.2 ft	7
Nov	69°	4.5 ft	–
Dec	65°	4.7 ft	–

Days: rainy days in the month. Sun: hours a day.

A normal year brings 72.22 in of rain on about 111 days and about 1,850 hours of sunshine.

Cyclones: how many tropical cyclones (tropical storms, hurricanes and typhoons) passed within 93 mi in each month from 1996 to 2025, according to IBTrACS (NOAA).

1991–2020 averages. Highs, lows and rainfall: TerraClimate; rainy days (0.04 in or more): NASA POWER (MERRA-2); sunshine hours: estimated from solar radiation; water: NOAA OISST; waves (average height): ERA5, 2011–2020. Normals are not a forecast: any given year can turn out very different. Sources and licenses

Temperature

Now56 °Ffeels like 57 °F

Tomorrow56 / 73 °F

It's 56 °F now (feels like 57 °F). Today, 48 °F to 67 °F; tomorrow, 56 °F to 73 °F.

Chance of rain

Today 95% 0.05 in
Fri 30 57%
Sat 31 39%
Sun 1 25% 0.09 in
Mon 2 68% 0.59 in
Tue 3 63% 0.11 in
Wed 4 45% 0.13 in

Today the chance of rain reaches 95%, with 0.05 in in total. The next day with likely rain is Friday 30: 57% and 0.00 in.

Recent rain: last 24 hours, 0.05 in; last 3 days, 0.28 in; last 7 days, 3.98 in.

Humidity and dew point

Humidity99%

Dew point56 °F

Humidity is 99% now and the dew point is 56 °F. The temperature is very close to the dew point: fog may form.

The dew point is the temperature at which the air becomes saturated: the higher it is, the heavier the air feels.

Visibility and fog

Now15 migood

Clouds100%

Visibility is good now (15 mi). No fog expected today.

The model gives visibility up to about 15 mi: beyond that, the horizon is clear.

UV index

Now0

Today's peak3moderate

Fri 30: 4 · Sat 31: 4 · Sun 1: 4

Index	Level	What to do
0–2	low	No special protection needed.
3–5	moderate	Hat, sunglasses and sunscreen around midday.
6–7	high	Sunscreen, hat and shade between 12 and 4 pm.
8–10	very high	Avoid the midday sun; reflection off the water adds to it.
11+	extreme	Avoid the sun between 11 am and 5 pm; protect yourself even if it is cloudy.

Reflection off water and sand adds radiation: protect yourself more on a boat or at the beach.

Barometric pressure

↗ Rising Anglers say fish bite less for a while
→ Steady Anglers expect normal activity
↘ Falling · now Anglers say fish feed more before the change

29.8030.0030.2030.40 29.79

Falling now (−0.04 inHg in 3 hours). Over the next 48 hours: −0.25 inHg. Falling pressure: anglers say fish feed more before the change. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityModerate · 53

Saharan dustNo

Previous days

The weather over the last 30 days, as the models analyzed it. Tap a day to see it hour by hour.

Day	Sky	Low / high	Rain	Max wind
Wed 28	Light drizzle	53 / 66 °F	0.02 in	11 mph N
Tue 27	Drizzle	61 / 68 °F	0.19 in	11 mph N
Mon 26	Rain	63 / 67 °F	2.00 in	10 mph NE
Sun 25	Light rain	65 / 80 °F	0.47 in	17 mph SW
Sat 24	Rain	63 / 68 °F	1.26 in	6 mph NNE
Fri 23	Overcast	56 / 70 °F	0	9 mph ENE
Thu 22	Light drizzle	60 / 77 °F	0.02 in	14 mph NE

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Wed 21	Light drizzle	74 / 82 °F	0.06 in	19 mph SW
Tue 20	Light drizzle	72 / 81 °F	0.01 in	14 mph SW
Mon 19	Overcast	63 / 78 °F	0	14 mph SW
Sun 18	Mainly clear	55 / 76 °F	0	7 mph SE
Sat 17	Partly cloudy	58 / 75 °F	0	8 mph NE
Fri 16	Light drizzle	62 / 78 °F	0.06 in	6 mph NNE
Thu 15	Overcast	59 / 73 °F	0	9 mph ENE
Wed 14	Drizzle	66 / 79 °F	0.09 in	17 mph SW
Tue 13	Light drizzle	64 / 77 °F	0.04 in	9 mph NE
Mon 12	Overcast	61 / 75 °F	0	13 mph NNE
Sun 11	Overcast	60 / 78 °F	0	10 mph NNE
Sat 10	Light drizzle	58 / 77 °F	0.01 in	10 mph NE
Fri 9	Mainly clear	59 / 76 °F	0	8 mph ENE
Thu 8	Mainly clear	57 / 75 °F	0	7 mph ENE
Wed 7	Overcast	62 / 74 °F	0	11 mph NNE
Tue 6	Overcast	67 / 79 °F	0	13 mph NNE
Mon 5	Light drizzle	62 / 71 °F	0.01 in	11 mph N
Sun 4	Overcast	58 / 74 °F	0	11 mph NE
Sat 3	Overcast	60 / 74 °F	0	10 mph ENE
Fri 2	Light rain	64 / 74 °F	0.33 in	12 mph ENE
Thu 1	Drizzle	65 / 83 °F	0.10 in	10 mph N
Wed 30	Light rain	64 / 70 °F	0.72 in	10 mph NNE
Tue 29	Rain	64 / 74 °F	1.44 in	7 mph E

These are the models at the start of each day (ECMWF and GFS; waves from Météo-France), not readings from a weather station: there can be differences at specific spots.

Questions about the weather in MinamibōsōQuestions

What's the weather like today in Minamibōsō?

Light drizzle, from 48 °F to 67 °F, with a light air from the southwest (1 mph) and a 95% chance of rain.

Will it rain tomorrow in Minamibōsō?

On Friday 30 the chance of rain is 57% (0.00 in): overcast.

How warm will it be this week?

Between a low of 48 °F and a high of 73 °F; the warmest day, Friday 30.

What's the UV index today?

It reaches 3 (moderate). Hat, sunglasses and sunscreen around midday.

Is the pressure rising or falling?

It's 30.22 inHg and falling: −0.01 inHg over the last 24 hours.

When is the best time to visit Minamibōsō?

The best time to visit Minamibōsō is from July to August: highs of 82 °F to 85 °F, about 10 rainy days a month and 6 hours of sunshine a day.

What is the weather like in Minamibōsō in October?

In October, Minamibōsō normally sees highs of 71 °F and lows of 58 °F, with about 11 rainy days (9.82 in for the month) and 4 hours of sunshine a day. The sea is around 73 °F. These are 1991–2020 averages.

What are the warmest and wettest months in Minamibōsō?

The warmest is August, with average highs of 85 °F, and the coldest January, with lows of 35 °F. The wettest is October (9.82 in) and the driest, January.

When is typhoon season in Minamibōsō?

Typhoon season: from July to October, peaking in August. In the last 30 years (1996–2025), 36 tropical cyclones passed within 93 mi of Minamibōsō, one or two a year; 18 of them with hurricane-force winds (74 mph or more). The most recent: Peipah, in September 2025.

More about Minamibōsō today

Weather near Minamibōsō

Only places with a different forecast: spots a few miles apart share the same model cell and wouldn't add anything.

Learn more

Weather: Open-Meteo, CC BY 4.0, with the best model for each spot and lead time (NOAA HRRR and NBM in the U.S., Météo-France AROME, DWD ICON-EU, ECMWF IFS and NOAA GFS); ECMWF grid point 16 mi away. The comparison also uses ICON (DWD), AIFS (ECMWF) and ARPEGE (Météo-France). Outlook: ECMWF 46-day and SEAS5. Chance of rain from ensemble models (ECMWF, GEFS and NBM). UV, air quality and pollen: CAMS (Copernicus).

Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 10:06 pm (local time).

Spotted a mistake? Tell us · Where the weather and sea data come from