Climate and average weather in Yahaba

In Yahaba, the summers are humid, warm, showery, and mostly cloudy and the winters are very cold, snowy, and partly cloudy.

Best: mid May to mid October

Over the course of the year, the temperature in Yahaba typically varies from -9°C to 26°C, and is rarely below -16°C or above 30°C. August is the hottest month of the year, while January is the coldest.

Based on the travel score, the best time of year to visit Yahaba for warm-weather activities is from mid May to mid October.

Hottest
Aug
26°
Coldest
Jan
-9°
Wettest
Jul
159 mm
Driest
Feb
59 mm
Rain / yr
1241 mm
159 wet days
Daylight
9.2–14.8 h
shortest–longest
Elevation
131 m
39.6°N
Clearest
Nov
63% cloud

Yahaba weather by month, at a glance

The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.

Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around mid May to mid October.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in Yahaba, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

The hot season lasts 3.8 months, from June 1 to September 25, with daily high temperatures above 20°C. The hottest month of the year in Yahaba is August, with an average high of 26°C and low of 19°C.

The cool season lasts 3.5 months, from December 2 to March 16, with daily high temperatures below 5°C. The coldest month of the year in Yahaba is January, with an average low of -9°C and high of -0°C.

Days typically run about 8°C warmer than nights year-round.

-20°-10°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan0-9
Feb1-8
Mar5-4
Apr122
May178
Jun2113
Jul2418
Aug2619
Sep2214
Oct167
Nov91
Dec3-5

How hot and cold Yahaba really feels

Feels-like highFeels-like lowactual air temp

The felt-temperature range through the year — heat index on the day's high (summer humidity), wind chill on the night's low (winter wind). The dashed lines are the plain thermometer; the gap is how much hotter or colder it really feels.

On the coldest nights, wind chill pulls the feels-like down to about -14°C (around January 31), with roughly 160 freezing days a year (feels-like at or below 0°C) 76 of them bitterly cold — worst in January.

-10°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan00-13-9
Feb11-13-8
Mar55-8-4
Apr121202
May171778
Jun21211313
Jul24241718
Aug26261919
Sep22221414
Oct161667
Nov99-21
Dec33-9-5

Average hourly temperature in Yahaba

A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on August afternoons, near 26°C, and coldest before dawn in January, near -9°C.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM

Yahaba weather by month

Every month at a glance. Click a month for its detailed page.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-0° / -9°6512.114.79.50.0
Feb / -8°5911.212.210.40.0
Mar / -4°9514.511.611.70.3
Apr12° / 9813.93.4132.8
May17° / 103130.114.15.1
Jun21° / 13°11312.7014.75.7
Jul24° / 18°15916.1014.55.6
Aug26° / 19°13814.8013.65.8
Sep22° / 14°14113012.35.8
Oct16° / 11311.30.110.94.7
Nov / 7912.93.39.81.7
Dec / -5°7813.912.69.30.0

Chance of rain

How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.

Yahaba gets about 1241 mm of precipitation a year. On a typical day the chance of rain is often wet, but that rises and falls sharply with the seasons.

The wetter season lasts 3.1 months, from around Jun 16 to Sep 17, peaking in July at about 55% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Oct 16.

July is the wettest month by volume, with 159 mm over about 16 wet days; February is the driest, with 59 mm. Some of the cold-season precipitation falls as snow.

0%10%20%30%40%50%60%70%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetJul 9 · 55%Oct 16 · 35%
Rain on a day (%)Rain days
Jan4012
Feb4111
Mar4615
Apr4614
May4213
Jun4413
Jul5116
Aug4715
Sep4413
Oct3611
Nov4313
Dec4414

Monthly rainfall

Over a full year, Yahaba collects about 1241 mm of rain across 159 wet days — roughly 103 mm in an average month.

It doesn’t fall evenly. July is the wettest month with 159 mm, while February is the driest at just 59 mm. The three wettest months alone bring about 35% of the year’s total, and some of the cold-season precipitation falls as snow.

0255075100125150175200JanFebMarAprMayJunJulAugSepOctNovDec655995981031131591381411137978
Rainfall (mm)Rain daysSnow days
Jan651215
Feb591112
Mar951512
Apr98143
May103130
Jun113130
Jul159160
Aug138150
Sep141130
Oct113110
Nov79133
Dec781413

Snow in Yahaba

Average snowy days through the year, the snow-season span, and estimated snowfall — for ski trips and the perennial 'will there be snow at Christmas?' question.

Yahaba averages about 58 snowy days a year. Snow season runs roughly Oct 30 to May 5 — about 6.2 months.

January is snowiest, with roughly 14 days of snow and an estimated 62 cm of snowfall. Over the year that adds up to an estimated 254 cm of snow.

05101520JanFebMarAprMayJunJulAugSepOctNovDecsnow seasonsnow seasonJan 7
Snow daysSnowfall (cm)
Jan1562
Feb1266
Mar1252
Apr314
May00
Jun00
Jul00
Aug00
Sep00
Oct00
Nov313
Dec1346

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

How often the daytime sky is clear, partly cloudy or overcast.

In Yahaba, the average share of the sky covered by clouds shows moderate seasonal variation over the course of the year.

The clearer part of the year begins around September 24 and lasts for 2.5 months, ending around December 9. The clearest month is November, when the sky is clear, mostly clear, or partly cloudy 43% of the time on average.

The cloudier part of the year begins around June 5 and lasts for 3.6 months, ending around September 23. The cloudiest month is July, when it is overcast or mostly cloudy 78% of the time.

0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanFebMarAprMayJunJulAugSepOctNovDecNov 2 · 48%Jul 7 · 20%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearer
Clearer (%)Cloudier (%)
Jan3565
Feb3268
Mar3664
Apr4357
May3763
Jun2773
Jul2278
Aug2971
Sep3367
Oct4357
Nov4357
Dec3466

Daylight, sunrise and sunset

DaylightNight

Hours of daylight through the year, with sunrise and sunset times.

The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around June 12, brings about 14 h 48 min of light; the shortest, around January 1, only 9 h 12 min — a swing of roughly 5 h 36 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan9.57:004:29
Feb10.46:375:03
Mar11.75:555:35
Apr13.05:046:07
May14.14:266:37
Jun14.74:126:59
Jul14.54:256:57
Aug13.64:526:27
Sep12.35:225:37
Oct10.95:524:49
Nov9.86:274:14
Dec9.36:554:08

Sunny days

How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.

Yahaba averages about 5 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 2 and 8 days.

The sunnier stretch runs 2.5 months, from around Mar 25 to Jun 9. The sunniest month is April, with roughly 7 sunny days (gloomy).

The greyest month is July, down near 3 sunny days — about 59% fewer than the April peak.

0510JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedApr 268 daysJul 102 days
Sunny daysSky
Jan3Gloomy
Feb3Gloomy
Mar4Gloomy
Apr7Gloomy
May7Gloomy
Jun4Gloomy
Jul3Gloomy
Aug5Gloomy
Sep5Gloomy
Oct7Gloomy
Nov6Gloomy
Dec4Gloomy

Humidity comfort

DryComfortableHumidMuggyOppressiveMiserable

Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.

Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.

In Yahaba, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 3.3 months, from around June 17 to September 24. The muggiest month is August, when the air feels humid, muggy or worse about 85% of the time.

The most comfortable stretch runs from around September 25 to June 16, and April is the most comfortable month — the air is dry or comfortable 100% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecApr 11 · 100%Aug 4 · 10%oppressivemuggyhumidcomfortabledrycomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
Jan1000000
Feb1000000
Mar1000000
Apr991000
May946000
Jun46341730
Jul52033375
Aug311254813
Sep332524162
Oct899200
Nov1000000
Dec1000000

Wind

Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Across the year, average wind speed in Yahaba is typically calm, near 8 km/h, and varies little with the seasons.

The windier part of the year lasts 6.0 months, from around Nov 19 to May 21. The windiest month is March, averaging about 10 km/h (calm).

The calmer part of the year runs from around May 22 to Nov 18, with August the calmest month at about 7 km/h.

051015JanFebMarAprMayJunJulAugSepOctNovDecwindiercalmerwindiercalmlight breezeMar 17 · 10 km/hAug 4 · 7 km/h
Wind speed (km/h)Feels
Jan9calm
Feb10calm
Mar10calm
Apr10calm
May9calm
Jun7calm
Jul7calm
Aug7calm
Sep7calm
Oct8calm
Nov8calm
Dec9calm

Best time to visit Yahaba

TravelBeach/poolTemperatureCloudsPrecipitation

To characterize how pleasant the weather is in Yahaba throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.

Around late May, Yahaba is still near the start of its best-weather window — great conditions with the peak-season crowds not yet at full swing.

Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.

The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, the best time of year to visit Yahaba for general outdoor tourist activities is from mid May to mid October, with a peak score in the last week of August.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationAug 29 · 5.9

The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Travel score (0–10)Rating
Jan0.0poor
Feb0.0poor
Mar0.3poor
Apr2.8poor
May5.1fair
Jun5.7good
Jul5.6good
Aug5.8good
Sep5.8good
Oct4.6fair
Nov1.7poor
Dec0.0poor

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit Yahaba for hot-weather activities is from mid July to mid September, with a peak score in the first week of August.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationAug 5 · 5.7

The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

What to pack for Yahaba, by month

EssentialRecommendedOptional

Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.

For a warm-season trip around August (highs near 26°C), the essentials are light clothes and rain gear. In the cold season around January (highs near -0°C), pack a warm layer, a heavy coat and rain gear.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In August, Yahaba sees daytime highs around 26°C and nights near 19°C. Pack rain gear. Worth having: light clothes. About 15 days see rain.

UV index (midday) in Yahaba by month

LowModerateHighVery highExtreme

Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.

Under clear skies, the midday UV index in Yahaba peaks around August 19 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighVery highHighModerateLowAug 19UV 9Jan 1UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May8Very high
Jun8Very high
Jul6High
Aug9Very high
Sep7Very high
Oct5Moderate
Nov2Moderate
Dec2Low

Average hourly UV index in Yahaba

LowModerateHighVery highExtreme

Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.

The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

UV falls off far faster than brightness as the sun drops, so even in August the burn window is concentrated in the middle of the day: about 7.5 hours a day reach index 3 (protection recommended), and 5 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM
UV ≥ 3 (h/day)UV ≥ 6 (h/day)
Jan00
Feb00
Mar3.50
Apr6.51
May84.5
Jun84
Jul71
Aug7.55
Sep6.53.5
Oct4.50
Nov00
Dec00

Air quality in Yahaba by month

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see which months the air is worst, not just the yearly average.

Air quality in Yahaba is worst in April — around 20 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (December, 9 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1420 µg/m³Dec 1610 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb14Moderate
Mar19Moderate
Apr20Moderate
May19Moderate
Jun14Moderate
Jul12Moderate
Aug11Good
Sep11Good
Oct12Good
Nov11Good
Dec9Good
Almanac & agriculture

Growing season

Chance of a frost-free dayTypical season (≥50%)

The growing season in Yahaba typically lasts about 230 days, from around April 5 to November 20 — the span where a frost-free day is more likely than not. It is reliably frost-free from April 24 to October 26.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecgrowing seasonMar 710%Apr 550%Apr 2490%Oct 2690%Nov 2050%Dec 1710%
Frost-free chance (%)Frost nights
Jan331
Feb428
Mar1831
Apr7323
May990
Jun1000
Jul1000
Aug1000
Sep1000
Oct964
Nov5930
Dec1231

Growing degree days

Degree days (base 10°C)Frost-free shaded

Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Yahaba banks about 1,305 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around August.

05001,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan0
Feb0
Mar0
Apr1
May90
Jun212
Jul337
Aug376
Sep239
Oct50
Nov0
Dec0

Solar energy

Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.

Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.

Yahaba receives about 3.7 kWh/m² a day of solar energy on average — moderate — with a clear seasonal swing between 1.9 and 5.3 kWh/m².

The brighter stretch of the year lasts 6.2 months, from around Feb 28 to Sep 3. The brightest month is May, averaging about 5.2 kWh/m² (bright).

The dimmest month is December, down near 2.0 kWh/m² — roughly 62% less than the May peak.

0123456JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightMay 295.3 kWhDec 101.9 kWh
Solar energy (kWh/m²)Level
Jan2.4Moderate
Feb3.2Moderate
Mar4.2Bright
Apr5.0Bright
May5.2Bright
Jun4.9Bright
Jul4.3Bright
Aug4.2Bright
Sep3.5Moderate
Oct2.9Moderate
Nov2.3Moderate
Dec1.9Dim

Where is Yahaba?

Yahaba sits at 39.6°N, 141.1°E, 131 m above sea level, in Japan. The nearest listed city is Hizume, 7.0 km away.

Topography around Yahaba

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Yahaba.

Within 3 km, the terrain around Yahaba has only modest variations in elevation — a maximum elevation change of 63 m around an average of 117 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 858 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,987 m.

The land around Yahaba is covered by cropland (64%) and artificial surfaces (25%) within 3 km, trees (67%) within 16 km, and trees (86%) within 80 km.

3 km
63 m
16 km
858 m
80 km
1,987 m
treesgrasslandcroplandartificial surfaceswater
Nearby: Hizume 7.0 km · Morioka 10 km · Shizukuishi 17 km · Takizawa 21 km · Hanamaki 25 km · Hachimantai 32 km · Semboku 36 km · Kitakami 37 km

Japan travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B
100 V · 50 / 60 Hz
Prices
≈ 65% of US
price level, 2025
GDP per capita
$35,951
2025
Happiness
6.1 / 10
World Happiness, 2025
Safe drinking water
99%
of population, 2024
Homicide rate
0.2
per 100k, 2023
Road deaths
3.6
per 100k/yr, 2019
Income group
High
World Bank
English
Very low
EF EPI 446
Religion
Shintoism 49%Buddhism 46%other 4%Christianity 1%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Yahaba (39.6111°, 141.1474°, elevation 131 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).