Weather in Tomamae

14-day forecast · updated today, Thursday, October 29, at 1:52 pm (GMT+9)

Now · drizzle 43 °F

Feels like: 37 °F
Low / high: 37 / 45 °F
Rain: 100% · 0.44 in
Wind: 9 mph S

↘ 30.12 inHg · falling

Today in Tomamae: light snow, 37 °F to 45 °F, with a 100% chance of rain (0.44 in) and a gentle breeze from the south (9 mph). Tomorrow, light drizzle, 45 °F to 61 °F and a 73% chance of rain. The warmest day of the week is Friday 30, at 61 °F.

Temperatures for the next 14 days

45° 37°
Today
61° 45°
Fri 30
55° 38°
Sat 31
40° 36°
Sun 1
46° 39°
Mon 2
42° 38°
Tue 3
42° 35°
Wed 4
52° 34°
Thu 5
50° 36°
Fri 6
36° 33°
Sat 7
36° 33°
Sun 8
35° 32°
Mon 9
36° 31°
Tue 10
36° 30°
Wed 11

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	High tides	Model
Today · 29	Light snow	37 / 45 °F	100% · 0.44 in	17 mph SW	9.8 ft	3:53 am · 7:25 pm	ECMWF
Fri 30	Light drizzle	45 / 61 °F	73% · 0.17 in	13 mph SSE	6.2 ft	4:21 am	ECMWF
Sat 31	Light snow	38 / 55 °F	94% · 0.30 in	18 mph WSW	8.5 ft	4:50 am	ECMWF
Sun 1	Snow	36 / 40 °F	100% · 0.20 in	20 mph WNW	11 ft	5:16 am	ECMWF
Mon 2	Light drizzle	39 / 46 °F	43% · 0.05 in	8 mph S	5.4 ft	2:33 am	ECMWF
Tue 3	Light snow	38 / 42 °F	75% · 0.32 in	14 mph WNW	4.5 ft	1:57 am	ECMWF
Wed 4	Snow	35 / 42 °F	84% · 0.30 in	14 mph W	5.6 ft	1:24 am · 11:17 am	ECMWF
Thu 5	Light drizzle	34 / 52 °F	33% · 0.02 in	13 mph SSE	4.3 ft	1:23 am · 1:00 pm	ECMWF
Fri 6	Snow	36 / 50 °F	76% · 0.71 in	14 mph W	7.5 ft	1:32 am · 2:23 pm	ECMWF
Sat 7	Snow	33 / 36 °F	82% · 0.49 in	17 mph WNW	11 ft	1:44 am · 3:28 pm	ECMWF
Sun 8	Snow	33 / 36 °F	77% · 0.13 in	15 mph W	11 ft	1:57 am · 4:20 pm	ECMWF
Mon 9	Snow	32 / 35 °F	66% · 0.09 in	9 mph W	5.2 ft	2:10 am · 5:06 pm	ECMWF
Tue 10	Snow	31 / 36 °F	58% · 0.35 in	11 mph NE	5.2 ft	2:26 am · 5:49 pm	ECMWF
Wed 11	Snow	30 / 36 °F	51% · 0.24 in	10 mph W	6.5 ft	2:44 am · 6:31 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	Light snow	Light snow	Light snow	Overcast	Light drizzle	Drizzle	Heavy drizzle	Light rain
Temperature	37°	37°	39°	44°	45°	42°	42°	43°
Chance of rain	82%	94%	51%	0%	45%	92%	96%	100%
Rain	0.01 in	0.01 in	0.00 in	0.00 in	0.00 in	0.02 in	0.04 in	0.05 in
Wind (mph)	13 WNW	14 WNW	13 W	12 WSW	12 SSW	8 S	11 SSE	17 SSE
Humidity	59%	66%	54%	49%	67%	91%	92%	96%
UV	0	0	0	1	1	0	0	0
Model	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF

Do the models agree?

Low confidence

They don't agree on wind on Saturday 31: it may change, so check again closer to the day.

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	45°	61°	55°	40°	46°	42°	42°
AIFS	46°	59°	52°	41°	43°	42°	46°
GFS	47°	60°	54°	42°	43°	44°	44°
ICON	47°	61°	55°	39°	46°	44°	42°
Confidence	high	high	high	high	high	high	high

Do the models agree? · Rain
Rain	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	0.44 in	0.17 in	0.30 in	0.20 in	0.05 in	0.32 in	0.30 in
AIFS	0.37 in	0.25 in	0.38 in	0.20 in	0.11 in	0.28 in	0.07 in
GFS	0.24 in	0.06 in	0.26 in	0.11 in	0.13 in	0.22 in	0.13 in
ICON	0.38 in	0.04 in	0.46 in	0.09 in	0.02 in	0.05 in	0.02 in
Confidence	high	medium	high	high	medium	medium	medium

Do the models agree? · Wind
Wind (mph)	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	1732	1330	1837	2043	831	1428	1434
AIFS	15	10	16	18	4	11	12
GFS	2033	1123	2631	3138	1217	1923	2327
ICON	1027	927	1233	1232	514	1332	1129
Confidence	medium	high	low	low	medium	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)	100%	73%	94%	100%	43%	75%	84%
GFS (GEFS, 31 scenarios)	92%	97%	87%	88%	72%	77%	77%

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 cooler and normal rain.

Next 6 weeks

When	TemperatureTemp.	Rain	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	Below −5.2 °F	Normal	—
Nov 9 – Nov 15Nov 9–Nov 15	A bit below −2.2 °F	Normal	—
Nov 16 – Nov 22Nov 16–Nov 22	A bit below −1.1 °F	Normal	39° / 33°
Nov 23 – Nov 29Nov 23–Nov 29	Normal +0.2 °F	Normal	36° / 30°
Nov 30 – Dec 6Nov 30–Dec 6	Normal −0.2 °F	Normal	33° / 27°

Coming months

When	TemperatureTemp.	Rain
November	Above +3.1 °F	Normal
December	A bit above +2.5 °F	Normal
January	Above +2.9 °F	A bit above +23%
February	Above +3.1 °F	Normal
March	A bit above +1.8 °F	A bit above +20%

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. The long-range sea temperature isn't usable at this spot (the model's grid cell falls on land).

Tomamae climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Tomamae is from July to August: highs of 74 °F to 76 °F, about 11 rainy days a month and 5 hours of sunshine a day.

Typhoon season: in September. In the last 30 years (1996–2025), 4 tropical cyclones passed within 93 mi of Tomamae, about one every 10 years; one of them with hurricane-force winds (74 mph or more). The most recent: Nabi, in September 2005.

30° 17°

JanJ
31° 16°

FebF
38° 24°

MarM
49° 35°

AprA
60° 44°

MayM
66° 53°

JunJ
74° 62°

JulJ
76° 63°

AugA
71° 55°

SepS
59° 44°

OctO
46° 34°

NovN
34° 23°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves	Cyclones
JanuaryJan	30°	17°	4.01 in	18	2.3	43°	5.7 ft	–
FebruaryFeb	31°	16°	2.95 in	13	3.9	40°	5.5 ft	–
MarchMar	38°	24°	2.58 in	10	5.5	41°	4.7 ft	–
AprilApr	49°	35°	2.16 in	8	5.7	44°	4.0 ft	–
MayMay	60°	44°	2.28 in	8	6.2	49°	3.0 ft	–
JuneJun	66°	53°	2.53 in	8	5.4	57°	2.2 ft	–
JulyJul	74°	62°	4.54 in	10	5.1	64°	2.0 ft	–
AugustAug	76°	63°	5.36 in	11	5.0	70°	2.3 ft	–
SeptemberSep	71°	55°	5.48 in	13	5.4	69°	3.0 ft	3
OctoberOct	59°	44°	4.74 in	14	4.4	62°	5.2 ft	1
NovemberNov	46°	34°	5.59 in	17	2.0	54°	6.1 ft	–
DecemberDec	34°	23°	5.52 in	20	1.3	47°	6.8 ft	–

Month	Water	Waves	Cyclones
Jan	43°	5.7 ft	–
Feb	40°	5.5 ft	–
Mar	41°	4.7 ft	–
Apr	44°	4.0 ft	–
May	49°	3.0 ft	–
Jun	57°	2.2 ft	–
Jul	64°	2.0 ft	–
Aug	70°	2.3 ft	–
Sep	69°	3.0 ft	3
Oct	62°	5.2 ft	1
Nov	54°	6.1 ft	–
Dec	47°	6.8 ft	–

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

A normal year brings 47.74 in of rain on about 150 days and about 1,600 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

Now43 °Ffeels like 37 °F

Tomorrow45 / 61 °F

It's 43 °F now (feels like 37 °F). Today, 37 °F to 45 °F; tomorrow, 45 °F to 61 °F.

Chance of rain

Today 100% 0.44 in
Fri 30 73% 0.17 in
Sat 31 94% 0.30 in
Sun 1 100% 0.20 in
Mon 2 43% 0.05 in
Tue 3 75% 0.32 in
Wed 4 84% 0.30 in

Today the chance of rain reaches 100%, with 0.44 in in total. The next day with likely rain is Friday 30: 73% and 0.17 in.

Recent rain: last 24 hours, 0.22 in; last 3 days, 1.15 in; last 7 days, 1.33 in.

Humidity and dew point

Humidity83%

Dew point38 °F

Humidity is 83% now and the dew point is 38 °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

Now13 migood

Clouds100%

Visibility is good now (13 mi). No fog expected today.

UV index

Now1

Today's peak1low

Fri 30: 2 · Sat 31: 2 · Sun 1: 1

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

29.6029.8030.0030.20 29.61

Falling now (−0.05 inHg in 3 hours). Over the next 48 hours: −0.50 inHg. Falling pressure: anglers say fish feed more before the change. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityFair · 32

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	Snow	36 / 40 °F	0.55 in	24 mph WNW
Tue 27	Light snow	39 / 50 °F	0.50 in	10 mph SSW
Mon 26	Overcast	44 / 52 °F	0	16 mph WNW
Sun 25	Light drizzle	51 / 60 °F	0.07 in	16 mph W
Sat 24	Overcast	50 / 61 °F	0	15 mph SSW
Fri 23	Overcast	48 / 56 °F	0	17 mph WSW
Thu 22	Light snow	42 / 47 °F	0.48 in	17 mph WNW

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Wed 21	Rain	47 / 55 °F	0.74 in	19 mph SSW
Tue 20	Overcast	46 / 60 °F	0	8 mph SW
Mon 19	Rain	49 / 64 °F	0.48 in	17 mph S
Sun 18	Overcast	38 / 58 °F	0	13 mph SE
Sat 17	Light drizzle	50 / 53 °F	0.01 in	18 mph WNW
Fri 16	Overcast	50 / 55 °F	0	16 mph W
Thu 15	Light drizzle	51 / 54 °F	0.10 in	22 mph W
Wed 14	Light rain	53 / 64 °F	0.78 in	24 mph SSW
Tue 13	Overcast	55 / 71 °F	0	14 mph SSE
Mon 12	Light drizzle	51 / 67 °F	0.01 in	6 mph ESE
Sun 11	Drizzle	51 / 65 °F	0.39 in	7 mph SW
Sat 10	Drizzle	56 / 68 °F	0.30 in	12 mph SW
Fri 9	Light drizzle	55 / 66 °F	0.01 in	11 mph WSW
Thu 8	Overcast	56 / 62 °F	0	16 mph W
Wed 7	Partly cloudy	52 / 64 °F	0	15 mph WNW
Tue 6	Rain	53 / 64 °F	0.78 in	18 mph WSW
Mon 5	Rain	46 / 67 °F	0.67 in	13 mph SE
Sun 4	Partly cloudy	46 / 62 °F	0	9 mph S
Sat 3	Drizzle	48 / 58 °F	0.25 in	13 mph NW
Fri 2	Drizzle	52 / 57 °F	0.31 in	21 mph W
Thu 1	Light rain	53 / 61 °F	0.43 in	21 mph SSW
Wed 30	Light drizzle	50 / 66 °F	0.03 in	10 mph E
Tue 29	Drizzle	55 / 63 °F	0.48 in	22 mph WNW

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 TomamaeQuestions

What's the weather like today in Tomamae?

Light snow, from 37 °F to 45 °F, with a gentle breeze from the south (9 mph) and a 100% chance of rain.

Will it rain tomorrow in Tomamae?

On Friday 30 the chance of rain is 73% (0.17 in): light drizzle.

How warm will it be this week?

Between a low of 35 °F and a high of 61 °F; the warmest day, Friday 30.

What's the UV index today?

It reaches 1 (low). No special protection needed.

Is the pressure rising or falling?

It's 30.12 inHg and falling: +0.34 inHg over the last 24 hours.

When is the best time to visit Tomamae?

The best time to visit Tomamae is from July to August: highs of 74 °F to 76 °F, about 11 rainy days a month and 5 hours of sunshine a day.

What is the weather like in Tomamae in October?

In October, Tomamae normally sees highs of 59 °F and lows of 44 °F, with about 14 rainy days (4.74 in for the month) and 4 hours of sunshine a day. The sea is around 62 °F. These are 1991–2020 averages.

What are the warmest and wettest months in Tomamae?

The warmest is August, with average highs of 76 °F, and the coldest February, with lows of 16 °F. The wettest is November (5.59 in) and the driest, April.

When is typhoon season in Tomamae?

Typhoon season: in September. In the last 30 years (1996–2025), 4 tropical cyclones passed within 93 mi of Tomamae, about one every 10 years; one of them with hurricane-force winds (74 mph or more). The most recent: Nabi, in September 2005.

More about Tomamae today

Weather near Tomamae

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 6.1 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 1:52 pm (local time).

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