Weather in Maihama

14-day forecast · updated today, Thursday, October 29, at 1:55 pm (GMT+9)

Now · overcast 61 °F

Feels like: 60 °F
Low / high: 49 / 62 °F
Rain: 22%
Wind: 2 mph NNW

↘ 30.29 inHg · falling

Today in Maihama: overcast, 49 °F to 62 °F, with a 22% chance of rain and a light air from the north-northwest (2 mph). Tomorrow, light drizzle, 53 °F to 65 °F and a 36% chance of rain. The warmest day of the week is Saturday 31, at 71 °F. Next likely rain: Monday 2 (64%).

Measured now at the airport

Tokyo Heliport (RJTI), 2.3 mi away · 55 min ago

Visibility6.2 mi or more

WeatherNothing to note

Temperature63 °F

Wind6 mph from the north

It's what the airport's weather station measured, not a forecast: on the coast, wind and fog can be different. Airports report every 30 or 60 minutes.

Airport METAR report, via NOAA's Aviation Weather Center (aviationweather.gov). Sources and licenses

Temperatures for the next 14 days

62° 49°
Today
65° 53°
Fri 30
71° 53°
Sat 31
63° 51°
Sun 1
66° 53°
Mon 2
70° 53°
Tue 3
59° 55°
Wed 4
62° 54°
Thu 5
67° 51°
Fri 6
58° 50°
Sat 7
54° 49°
Sun 8
56° 48°
Mon 9
59° 46°
Tue 10
58° 44°
Wed 11

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	High tides	Model
Today · 29	Overcast	49 / 62 °F	22%	4 mph N	0.6 ft	7:17 am · 5:56 pm	ECMWF
Fri 30	Light drizzle	53 / 65 °F	36% · 0.01 in	4 mph NNW	1.0 ft	8:10 am · 6:26 pm	ECMWF
Sat 31	Mainly clear	53 / 71 °F	4%	6 mph NW	1.2 ft	9:10 am · 7:03 pm	ECMWF
Sun 1	Overcast	51 / 63 °F	20%	5 mph ENE	0.9 ft	10:23 am · 7:57 pm	ECMWF
Mon 2	Drizzle	53 / 66 °F	64% · 0.13 in	11 mph W	1.5 ft	11:58 am · 10:00 pm	ECMWF
Tue 3	Overcast	53 / 70 °F	37%	6 mph NE	1.6 ft	1:20 pm	ECMWF
Wed 4	Heavy drizzle	55 / 59 °F	34% · 0.28 in	8 mph NNE	1.2 ft	12:31 am · 2:04 pm	ECMWF
Thu 5	Heavy drizzle	54 / 62 °F	62% · 0.39 in	9 mph NNW	1.2 ft	2:02 am · 2:34 pm	ECMWF
Fri 6	Overcast	51 / 67 °F	47%	6 mph N	1.0 ft	3:04 am · 3:01 pm	ECMWF
Sat 7	Overcast	50 / 58 °F	18%	6 mph NE	1.5 ft	3:53 am · 3:25 pm	ECMWF
Sun 8	Light drizzle	49 / 54 °F	14% · 0.02 in	5 mph NNW	1.2 ft	4:36 am · 3:49 pm	ECMWF
Mon 9	Overcast	48 / 56 °F	16%	5 mph NE	1.4 ft	5:15 am · 4:12 pm	ECMWF
Tue 10	Partly cloudy	46 / 59 °F	18%	3 mph NNW	0.9 ft	5:53 am · 4:36 pm	ECMWF
Wed 11	Mainly clear	44 / 58 °F	22%	3 mph ENE	0.9 ft	6:29 am · 5:01 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	Overcast	Clear	Mainly clear	Overcast	Overcast	Overcast	Partly cloudy	Overcast
Temperature	52°	52°	49°	53°	58°	62°	57°	56°
Chance of rain	0%	0%	0%	0%	0%	6%	22%	6%
Rain	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in
Wind (mph)	1 NE	4 N	3 NNE	4 N	4 N	2 NW	3 N	4 NW
Humidity	71%	63%	69%	67%	67%	67%	81%	85%
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 wind 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	62°	65°	71°	63°	66°	70°	59°
AIFS	62°	65°	72°	67°	63°	67°	59°
GFS	64°	68°	73°	67°	73°	69°	62°
ICON	63°	67°	74°	65°	73°	71°	62°
Confidence	high	high	high	high	low	high	high

Do the models agree? · Rain
Rain	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	0	0.01 in	0	0	0.13 in	0	0.28 in
AIFS	0.03 in	0.13 in	0.03 in	0	0.17 in	0.01 in	0.68 in
GFS	0	0	0.00 in	0.02 in	0.17 in	0.02 in	0.08 in
ICON	0	0.00 in	0	0	0	0	0.04 in
Confidence	high	medium	high	high	medium	high	medium

Do the models agree? · Wind
Wind (mph)	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	413	48	614	519	1136	632	818
AIFS	6	4	6	6	5	8	12
GFS	1211	911	1515	1516	2737	1617	1519
ICON	615	410	1023	615	1843	717	719
Confidence	medium	high	medium	medium	low	medium	medium

Chance of rain from the ensemble models

Model	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF (51 scenarios)	22%	36%	4%	20%	64%	37%	34%
GFS (GEFS, 31 scenarios)	19%	42%	29%	34%	52%	35%	16%

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: normal temperatures, normal rain and a slightly warmer sea.

Next 6 weeks

When	TemperatureTemp.	Rain	Sea	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	A bit below −0.9 °F	A bit above +27%	Above +1.8 °F	—
Nov 9 – Nov 15Nov 9–Nov 15	Normal −0.7 °F	Normal	A bit above +1.3 °F	—
Nov 16 – Nov 22Nov 16–Nov 22	A bit above +1.4 °F	Normal	A bit above +1.4 °F	61° / 53°
Nov 23 – Nov 29Nov 23–Nov 29	A bit above +2.0 °F	Normal	Above +1.8 °F	59° / 51°
Nov 30 – Dec 6Nov 30–Dec 6	A bit above +2.2 °F	Normal	Above +2.2 °F	57° / 48°

Coming months

When	TemperatureTemp.	Rain	Sea
November	Above +3.6 °F	A bit above +20%	Well above +4.7 °F
December	Above +2.9 °F	Above +53%	Well above +3.6 °F
January	Above +2.9 °F	Normal	Above +3.4 °F
February	Above +3.6 °F	A bit above +28%	Well above +4.3 °F
March	Above +3.6 °F	Normal	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.

Maihama climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Maihama is in May and from July to August: highs of 73 °F to 87 °F, about 10 rainy days a month and 5 hours of sunshine a day.

Typhoon season: from July to October, peaking in September. In the last 30 years (1996–2025), 35 tropical cyclones passed within 93 mi of Maihama, one or two a year; 14 of them with hurricane-force winds (74 mph or more). The most recent: Peipah, in September 2025.

50° 35°

JanJ
51° 36°

FebF
56° 42°

MarM
66° 50°

AprA
73° 59°

MayM
78° 66°

JunJ
84° 73°

JulJ
87° 75°

AugA
81° 69°

SepS
71° 59°

OctO
62° 48°

NovN
54° 39°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves	Cyclones
JanuaryJan	50°	35°	1.92 in	5	5.8	57°	3.8 ft	–
FebruaryFeb	51°	36°	2.29 in	6	5.3	55°	4.2 ft	–
MarchMar	56°	42°	4.12 in	10	5.1	56°	4.5 ft	–
AprilApr	66°	50°	4.49 in	10	5.5	59°	4.4 ft	–
MayMay	73°	59°	4.86 in	10	5.6	64°	3.9 ft	–
JuneJun	78°	66°	6.25 in	12	3.7	70°	3.8 ft	4
JulyJul	84°	73°	5.65 in	11	4.3	74°	3.7 ft	6
AugustAug	87°	75°	5.11 in	10	5.5	79°	4.1 ft	7
SeptemberSep	81°	69°	7.35 in	13	4.2	76°	4.5 ft	10
OctoberOct	71°	59°	8.00 in	11	3.9	71°	4.8 ft	8
NovemberNov	62°	48°	3.48 in	8	4.1	66°	4.1 ft	–
DecemberDec	54°	39°	2.09 in	6	4.8	61°	3.8 ft	–

Month	Water	Waves	Cyclones
Jan	57°	3.8 ft	–
Feb	55°	4.2 ft	–
Mar	56°	4.5 ft	–
Apr	59°	4.4 ft	–
May	64°	3.9 ft	–
Jun	70°	3.8 ft	4
Jul	74°	3.7 ft	6
Aug	79°	4.1 ft	7
Sep	76°	4.5 ft	10
Oct	71°	4.8 ft	8
Nov	66°	4.1 ft	–
Dec	61°	3.8 ft	–

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

A normal year brings 55.62 in of rain on about 111 days and about 1,750 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

Now61 °Ffeels like 60 °F

Tomorrow53 / 65 °F

It's 61 °F now (feels like 60 °F). Today, 49 °F to 62 °F; tomorrow, 53 °F to 65 °F.

Chance of rain

Today 22%
Fri 30 36% 0.01 in
Sat 31 4%
Sun 1 20%
Mon 2 64% 0.13 in
Tue 3 37%
Wed 4 34% 0.28 in

Today the chance of rain reaches 22%. The next day with likely rain is Monday 2: 64% and 0.13 in.

Recent rain: last 24 hours, 0.00 in; last 3 days, 0.72 in; last 7 days, 2.11 in.

Humidity and dew point

Humidity66%

Dew point50 °F

Humidity is 66% now and the dew point is 50 °F.

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

Now2

Today's peak3low

Fri 30: 3 · 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 29.81

Falling now (−0.04 inHg in 3 hours). Over the next 48 hours: −0.46 inHg. Falling pressure: anglers say fish feed more before the change. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityModerate · 47

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 / 64 °F	0.00 in	15 mph NNW
Tue 27	Light drizzle	61 / 68 °F	0.03 in	9 mph N
Mon 26	Rain	62 / 67 °F	1.31 in	9 mph NE
Sun 25	Drizzle	61 / 79 °F	0.21 in	16 mph WSW
Sat 24	Light rain	60 / 64 °F	0.56 in	5 mph N
Fri 23	Overcast	55 / 72 °F	0	6 mph NE
Thu 22	Overcast	59 / 76 °F	0	7 mph NNE

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Wed 21	Partly cloudy	69 / 82 °F	0	18 mph SSW
Tue 20	Light drizzle	64 / 80 °F	0.01 in	7 mph N
Mon 19	Overcast	68 / 79 °F	0	14 mph SSW
Sun 18	Mainly clear	56 / 76 °F	0	7 mph SSE
Sat 17	Light drizzle	61 / 75 °F	0.05 in	6 mph NE
Fri 16	Light drizzle	60 / 78 °F	0.04 in	6 mph N
Thu 15	Light drizzle	62 / 72 °F	0.00 in	5 mph NE
Wed 14	Light drizzle	66 / 79 °F	0.02 in	10 mph SW
Tue 13	Overcast	61 / 76 °F	0	6 mph NNE
Mon 12	Overcast	61 / 76 °F	0	9 mph NNE
Sun 11	Clear sky	60 / 79 °F	0	7 mph NNE
Sat 10	Partly cloudy	60 / 77 °F	0	6 mph NNE
Fri 9	Mainly clear	58 / 76 °F	0	5 mph NE
Thu 8	Clear sky	58 / 75 °F	0	5 mph NNE
Wed 7	Overcast	65 / 76 °F	0	6 mph NW
Tue 6	Overcast	66 / 79 °F	0	9 mph NNE
Mon 5	Light drizzle	62 / 71 °F	0.02 in	7 mph NNW
Sun 4	Overcast	59 / 71 °F	0	7 mph NE
Sat 3	Overcast	62 / 72 °F	0	6 mph NE
Fri 2	Drizzle	65 / 72 °F	0.18 in	8 mph ENE
Thu 1	Light drizzle	65 / 84 °F	0.05 in	7 mph N
Wed 30	Light rain	64 / 70 °F	0.62 in	7 mph NNE
Tue 29	Light rain	65 / 71 °F	1.30 in	4 mph ESE

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 MaihamaQuestions

What's the weather like today in Maihama?

Overcast, from 49 °F to 62 °F, with a light air from the north-northwest (2 mph) and a 22% chance of rain.

Will it rain tomorrow in Maihama?

On Friday 30 the chance of rain is 36% (0.01 in): light drizzle.

How warm will it be this week?

Between a low of 49 °F and a high of 71 °F; the warmest day, Saturday 31.

What's the UV index today?

It reaches 3 (low). No special protection needed.

Is the pressure rising or falling?

It's 30.29 inHg and falling: +0.27 inHg over the last 24 hours.

When is the best time to visit Maihama?

The best time to visit Maihama is in May and from July to August: highs of 73 °F to 87 °F, about 10 rainy days a month and 5 hours of sunshine a day.

What is the weather like in Maihama in October?

In October, Maihama normally sees highs of 71 °F and lows of 59 °F, with about 11 rainy days (8.00 in for the month) and 4 hours of sunshine a day. The sea is around 71 °F. These are 1991–2020 averages.

What are the warmest and wettest months in Maihama?

The warmest is August, with average highs of 87 °F, and the coldest January, with lows of 35 °F. The wettest is October (8.00 in) and the driest, January.

When is typhoon season in Maihama?

Typhoon season: from July to October, peaking in September. In the last 30 years (1996–2025), 35 tropical cyclones passed within 93 mi of Maihama, one or two a year; 14 of them with hurricane-force winds (74 mph or more). The most recent: Peipah, in September 2025.

More about Maihama today

Weather near Maihama

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 11 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 1:55 pm (local time).

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