Weather in Ishikari

14-day forecast · updated today, Thursday, October 29, at 2:52 pm (GMT+9)

Now · overcast 49 °F

Feels like: 41 °F
Low / high: 39 / 50 °F
Rain: 100% · 0.17 in
Wind: 11 mph SSE

↘ 30.14 inHg · falling

Today in Ishikari: light snow, 39 °F to 50 °F, with a 100% chance of rain (0.17 in) and a gentle breeze from the south-southeast (11 mph). Tomorrow, light drizzle, 46 °F to 62 °F and a 75% chance of rain. The warmest day of the week is Friday 30, at 62 °F.

Temperatures for the next 14 days

50° 39°
Today
62° 46°
Fri 30
58° 39°
Sat 31
41° 38°
Sun 1
45° 34°
Mon 2
44° 35°
Tue 3
45° 31°
Wed 4
53° 31°
Thu 5
52° 37°
Fri 6
37° 35°
Sat 7
35° 32°
Sun 8
36° 30°
Mon 9
35° 28°
Tue 10
36° 27°
Wed 11

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	High tides	Model
Today · 29	Light snow	39 / 50 °F	100% · 0.17 in	15 mph SSW	8.7 ft	3:48 am · 7:31 pm	ECMWF
Fri 30	Light drizzle	46 / 62 °F	75% · 0.01 in	14 mph SSE	2.7 ft	4:18 am	ECMWF
Sat 31	Drizzle	39 / 58 °F	93% · 0.13 in	18 mph WNW	7.5 ft	4:52 am	ECMWF
Sun 1	Light drizzle	38 / 41 °F	100% · 0.14 in	22 mph WNW	10 ft	5:34 am	ECMWF
Mon 2	Light drizzle	34 / 45 °F	45% · 0.02 in	9 mph SE	4.4 ft	6:56 am	ECMWF
Tue 3	Snow	35 / 44 °F	79% · 0.28 in	17 mph WNW	4.5 ft	9:08 am	ECMWF
Wed 4	Snow	31 / 45 °F	84% · 0.18 in	18 mph W	4.8 ft	1:15 am · 11:15 am	ECMWF
Thu 5	Drizzle	31 / 53 °F	25% · 0.07 in	10 mph SSE	3.0 ft	1:13 am · 12:56 pm	ECMWF
Fri 6	Light snow	37 / 52 °F	64% · 0.91 in	15 mph SW	6.9 ft	1:23 am · 2:14 pm	ECMWF
Sat 7	Snow	35 / 37 °F	75% · 0.36 in	18 mph WNW	8.7 ft	1:36 am · 3:17 pm	ECMWF
Sun 8	Snow	32 / 35 °F	75% · 0.39 in	16 mph WNW	8.4 ft	1:50 am · 4:11 pm	ECMWF
Mon 9	Snow	30 / 36 °F	63% · 0.12 in	12 mph WNW	5.4 ft	2:05 am · 4:59 pm	ECMWF
Tue 10	Snow	28 / 35 °F	47% · 0.35 in	10 mph W	5.1 ft	2:22 am · 5:45 pm	ECMWF
Wed 11	Snow	27 / 36 °F	50% · 0.28 in	12 mph W	5.1 ft	2:42 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 drizzle	Light snow	Light drizzle	Partly cloudy	Partly cloudy	Overcast	Overcast	Drizzle
Temperature	39°	40°	41°	42°	50°	49°	46°	46°
Chance of rain	51%	92%	71%	4%	4%	0%	63%	100%
Rain	0.00 in	0.01 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.04 in
Wind (mph)	12 W	15 W	10 W	7 SSE	8 S	11 SSE	11 SSE	9 SSE
Humidity	60%	71%	54%	65%	48%	53%	69%	96%
UV	0	0	0	1	2	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 Sunday 1: 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	50°	62°	58°	41°	45°	44°	45°
AIFS	50°	59°	53°	44°	45°	46°	48°
GFS	50°	63°	57°	44°	43°	46°	45°
ICON	53°	63°	59°	42°	47°	46°	49°
Confidence	high	high	medium	high	high	high	high

Do the models agree? · Rain
Rain	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	0.17 in	0.01 in	0.13 in	0.14 in	0.02 in	0.28 in	0.18 in
AIFS	0.19 in	0.12 in	0.17 in	0.08 in	0.14 in	0.14 in	0.06 in
GFS	0.07 in	0.14 in	0.07 in	0.07 in	0.21 in	0.22 in	0.03 in
ICON	0.02 in	0	0.11 in	0.00 in	0.01 in	0.05 in	0.01 in
Confidence	medium	medium	high	medium	low	medium	medium

Do the models agree? · Wind
Wind (mph)	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	1530	1429	1834	2247	928	1737	1839
AIFS	11	9	13	15	3	11	11
GFS	1936	1125	2536	3443	1219	2228	2436
ICON	1122	1021	1634	2043	511	1328	1225
Confidence	medium	high	medium	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%	75%	93%	100%	45%	79%	84%
GFS (GEFS, 31 scenarios)	81%	80%	81%	81%	68%	77%	52%

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, normal rain and a slightly cooler sea.

Next 6 weeks

When	TemperatureTemp.	Rain	Sea	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	Below −4.7 °F	A bit above +21%	A bit below −0.7 °F	—
Nov 9 – Nov 15Nov 9–Nov 15	A bit below −1.8 °F	Normal	A bit below −0.7 °F	—
Nov 16 – Nov 22Nov 16–Nov 22	A bit below −0.9 °F	Normal	A bit below −0.5 °F	42° / 38°
Nov 23 – Nov 29Nov 23–Nov 29	Normal +0.2 °F	Normal	A bit below −0.5 °F	39° / 35°
Nov 30 – Dec 6Nov 30–Dec 6	Normal −0.2 °F	Normal	A bit below −0.5 °F	37° / 32°

Coming months

When	TemperatureTemp.	Rain	Sea
November	Above +3.1 °F	Normal	—
December	Above +2.7 °F	Normal	—
January	Above +2.9 °F	Normal	—
February	Above +3.1 °F	Normal	—
March	A bit above +2.0 °F	A bit above +21%	—

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.

Ishikari climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Ishikari is from June to September: highs of 68 °F to 77 °F, about 10 rainy days a month and 5 hours of sunshine a day.

Typhoon season: from August to September, peaking in September. In the last 30 years (1996–2025), 6 tropical cyclones passed within 93 mi of Ishikari, about 2 every 10 years; one of them with hurricane-force winds (74 mph or more). The most recent: Chanthu, in August 2016.

31° 18°

JanJ
32° 19°

FebF
38° 26°

MarM
51° 36°

AprA
62° 45°

MayM
68° 54°

JunJ
75° 62°

JulJ
77° 64°

AugA
71° 56°

SepS
60° 44°

OctO
47° 33°

NovN
36° 23°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves	Cyclones
JanuaryJan	31°	18°	4.75 in	19	2.8	44°	5.1 ft	–
FebruaryFeb	32°	19°	3.59 in	15	4.1	42°	4.7 ft	–
MarchMar	38°	26°	2.63 in	11	5.6	42°	3.6 ft	–
AprilApr	51°	36°	2.22 in	8	5.5	45°	2.8 ft	–
MayMay	62°	45°	2.39 in	9	6.0	50°	2.0 ft	–
JuneJun	68°	54°	2.56 in	8	5.4	58°	1.5 ft	–
JulyJul	75°	62°	4.43 in	10	4.8	66°	1.3 ft	–
AugustAug	77°	64°	5.19 in	11	5.1	71°	1.4 ft	2
SeptemberSep	71°	56°	4.99 in	12	5.3	69°	2.1 ft	3
OctoberOct	60°	44°	4.04 in	13	4.7	63°	3.9 ft	1
NovemberNov	47°	33°	5.01 in	16	2.7	55°	4.8 ft	–
DecemberDec	36°	23°	5.82 in	20	2.0	48°	5.7 ft	–

Month	Water	Waves	Cyclones
Jan	44°	5.1 ft	–
Feb	42°	4.7 ft	–
Mar	42°	3.6 ft	–
Apr	45°	2.8 ft	–
May	50°	2.0 ft	–
Jun	58°	1.5 ft	–
Jul	66°	1.3 ft	–
Aug	71°	1.4 ft	2
Sep	69°	2.1 ft	3
Oct	63°	3.9 ft	1
Nov	55°	4.8 ft	–
Dec	48°	5.7 ft	–

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

A normal year brings 47.61 in of rain on about 151 days and about 1,650 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

Now49 °Ffeels like 41 °F

Tomorrow46 / 62 °F

It's 49 °F now (feels like 41 °F). Today, 39 °F to 50 °F; tomorrow, 46 °F to 62 °F.

Chance of rain

Today 100% 0.17 in
Fri 30 75% 0.01 in
Sat 31 93% 0.13 in
Sun 1 100% 0.14 in
Mon 2 45% 0.02 in
Tue 3 79% 0.28 in
Wed 4 84% 0.18 in

Today the chance of rain reaches 100%, with 0.17 in in total. The next day with likely rain is Friday 30: 75% and 0.01 in.

Recent rain: last 24 hours, 0.09 in; last 3 days, 0.51 in; last 7 days, 0.57 in.

Humidity and dew point

Humidity53%

Dew point33 °F

Humidity is 53% now and the dew point is 33 °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

Clouds98%

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 peak2low

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 29.63

Falling now (−0.04 inHg in 3 hours). Over the next 48 hours: −0.45 inHg. Falling pressure: anglers say fish feed more before the change. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityFair · 30

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	35 / 41 °F	0.33 in	24 mph WNW
Tue 27	Drizzle	41 / 52 °F	0.13 in	13 mph E
Mon 26	Overcast	42 / 53 °F	0	16 mph NW
Sun 25	Light drizzle	48 / 59 °F	0.01 in	16 mph NW
Sat 24	Overcast	42 / 60 °F	0	7 mph SE
Fri 23	Overcast	43 / 59 °F	0	11 mph WSW
Thu 22	Light snow	40 / 49 °F	0.56 in	18 mph WNW

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Wed 21	Drizzle	49 / 62 °F	0.43 in	17 mph SW
Tue 20	Overcast	48 / 62 °F	0	7 mph N
Mon 19	Rain	52 / 64 °F	0.90 in	18 mph SSW
Sun 18	Overcast	38 / 59 °F	0	13 mph SE
Sat 17	Light drizzle	51 / 56 °F	0.02 in	21 mph NW
Fri 16	Light drizzle	48 / 59 °F	0.09 in	17 mph W
Thu 15	Light drizzle	48 / 58 °F	0.07 in	17 mph W
Wed 14	Light rain	51 / 66 °F	0.42 in	21 mph SW
Tue 13	Overcast	54 / 68 °F	0	14 mph SSE
Mon 12	Light drizzle	51 / 69 °F	0.02 in	6 mph SE
Sun 11	Overcast	53 / 69 °F	0	9 mph NW
Sat 10	Overcast	53 / 71 °F	0	7 mph ESE
Fri 9	Light drizzle	46 / 69 °F	0.05 in	10 mph N
Thu 8	Overcast	52 / 68 °F	0	17 mph WNW
Wed 7	Partly cloudy	51 / 65 °F	0	16 mph NW
Tue 6	Rain	54 / 67 °F	0.19 in	19 mph WNW
Mon 5	Rain	46 / 67 °F	0.58 in	20 mph SE
Sun 4	Light drizzle	44 / 63 °F	0.00 in	7 mph W
Sat 3	Drizzle	51 / 59 °F	0.19 in	10 mph WNW
Fri 2	Drizzle	52 / 57 °F	0.21 in	20 mph W
Thu 1	Light rain	56 / 64 °F	0.35 in	16 mph SSW
Wed 30	Light drizzle	52 / 70 °F	0.02 in	10 mph SE
Tue 29	Light drizzle	56 / 65 °F	0.24 in	19 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 IshikariQuestions

What's the weather like today in Ishikari?

Light snow, from 39 °F to 50 °F, with a gentle breeze from the south-southeast (11 mph) and a 100% chance of rain.

Will it rain tomorrow in Ishikari?

On Friday 30 the chance of rain is 75% (0.01 in): light drizzle.

How warm will it be this week?

Between a low of 31 °F and a high of 62 °F; the warmest day, Friday 30.

What's the UV index today?

It reaches 2 (low). No special protection needed.

Is the pressure rising or falling?

It's 30.14 inHg and falling: +0.27 inHg over the last 24 hours.

When is the best time to visit Ishikari?

The best time to visit Ishikari is from June to September: highs of 68 °F to 77 °F, about 10 rainy days a month and 5 hours of sunshine a day.

What is the weather like in Ishikari in October?

In October, Ishikari normally sees highs of 60 °F and lows of 44 °F, with about 13 rainy days (4.04 in for the month) and 5 hours of sunshine a day. The sea is around 63 °F. These are 1991–2020 averages.

What are the warmest and wettest months in Ishikari?

The warmest is August, with average highs of 77 °F, and the coldest January, with lows of 18 °F. The wettest is December (5.82 in) and the driest, April.

When is typhoon season in Ishikari?

Typhoon season: from August to September, peaking in September. In the last 30 years (1996–2025), 6 tropical cyclones passed within 93 mi of Ishikari, about 2 every 10 years; one of them with hurricane-force winds (74 mph or more). The most recent: Chanthu, in August 2016.

More about Ishikari today

Weather near Ishikari

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 7.4 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 2:52 pm (local time).

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