Tōno weather in May

In May, Tōno sees average daytime highs of 17°C and overnight lows near 9°C, with 117 mm of rain across 12.4 wet days and about 14.1 hours of daylight. It is the 5th-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 16°C in the first days to 19°C by the end. The sky is clear or mostly clear about 23% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 36 min at the start of May to 14 h 30 min by month's end. Set against the rest of the year, May is Tōno's 8th-clearest and 7th-windiest month. For the whole year in context, see Tōno's year-round climate.

Daytime high
17°
5th warmest
Overnight low
8th coldest
Rainfall
117 mm
12.4 wet days
Daylight
14 h 06 min
4:26 AM – 6:35 PM
Cloud cover
69%
8th clearest
Wind
9 km/h
7th windiest
Solar energy
5.38 kWh/m²
Travel score
5.2
out of 10

Tōno is city in Iwate Prefecture, Japan.

Density
32/km²
people per km²
Founded
1954

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 16°C in the first days to 19°C by the end.

A typical May day in Tōno reaches about 17°C in the afternoon and slips back to 9°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 22°C. Set against its neighbours, May runs about 5°C warmer than April and about 3°C cooler than June.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
1167
2167
3167
4168
5168
6168
7168
8168
9178
10179
11179
12179
13179
14179
15179
16179
171810
181810
191810
201810
211810
221810
231810
241911
251911
261911
271911
281911
291911
301911
311912

How May really feels in Tōno

Once humidity and wind are folded in, May averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Tōno weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -6°548.689.50.0
Feb / -6°508.37.510.50.0
Mar / -2°9512.17.211.70.6
Apr13° / 102132.1133.2
May17° / 11712.4014.15.2
Jun21° / 14°12912.9014.75.6
Jul24° / 18°16716014.55.6
Aug26° / 19°16415.5013.55.7
Sep22° / 15°17214.1012.35.8
Oct17° / 13511.20115.0
Nov10° / 7410.51.49.82.4
Dec / -2°6410.26.69.30.1

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 14% of May, with mostly cloudy or overcast conditions the remaining 63%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14357
24357
34258
44159
54060
63961
73862
83862
93763
103664
113664
123664
133565
143565
153565
163664
173664
183763
193763
203763
213763
223763
233664
243763
253763
263763
273763
283664
293565
303565
313466

Chance of precipitation in May

Any precipitation

Tōno gets around 117 mm of rain over 12.4 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 40% and peaks near 41% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
140
240
340
440
539
639
739
840
940
1040
1140
1240
1340
1441
1541
1641
1741
1841
1941
2041
2141
2241
2340
2440
2540
2640
2739
2839
2939
3038
3138

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

Most of May feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, May lands in the dry band about 92% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19820
29820
39820
49820
59820
69820
79820
89820
99820
109730
119730
129730
139730
149640
159640
169550
179550
189460
199370
209280
219190
2290100
2388120
2487130
2586140
2684151
2782171
2881181
2979201
3077221
3175232

Wind in May

Winds average 9 km/h in May.

Across May, daily wind ranges from about 8 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 36 min at the start of May to 14 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 54 minutes over May. Sunrise moves from 4:42 AM to 4:15 AM, and sunset from 6:20 PM to 6:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.64:426:20
213.74:416:21
313.74:406:22
413.74:386:23
513.84:376:24
613.84:366:25
713.94:356:26
813.94:346:27
913.94:336:28
1014.04:326:29
1114.04:316:30
1214.04:306:31
1314.14:296:32
1414.14:286:33
1514.14:276:34
1614.14:266:35
1714.24:256:36
1814.24:246:36
1914.24:236:37
2014.34:226:38
2114.34:216:39
2214.34:216:40
2314.34:206:41
2414.44:196:42
2514.44:196:43
2614.44:186:43
2714.44:176:44
2814.54:176:45
2914.54:166:46
3014.54:166:47
3114.54:156:47

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.38 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.07 kWh/m² to a high of 5.38 kWh/m² in May across the year — May's 5.38 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.4Bright
55.4Bright
65.4Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.4Bright
195.4Bright
205.4Bright
215.4Bright
225.4Bright
235.5Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.5Bright
295.6Bright
305.6Bright
315.5Bright
Planning a trip in May

Hazard calendar for Tōno

In seasonPeak

In May, Tōno sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

Tōno sits in the Pacific typhoon belt; the season peaks July–October.

Pacific typhoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is May a good time to visit Tōno?

Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.2
Sightseeing
5th-best month of the year
1.5
Beach & pool
5th-best month of the year

May is a reasonable time to visit Tōno for sightseeing.

What to pack for Tōno in May

From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In May, Tōno sees daytime highs around 17°C and nights near 9°C. Worth packing: rain gear and sun protection. About 12 days see rain.

rain gearsun protection

Sea temperature near Tōno in May

The nearest coast averages about 12°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 36 km away) is warmest in August at about 22°C and coldest in March near 7°C.

It's comfortable for a long swim from Jul 26 to Oct 1 — about 2.2 months when the water holds above 20°C.

5°10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan10Bracing
Feb8Bracing
Mar7Bracing
Apr9Bracing
May12Bracing
Jun16Cool
Jul19Cool
Aug22Refreshing
Sep21Refreshing
Oct19Cool
Nov16Cool
Dec13Bracing

UV index in Tōno in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Tōno 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
Nov3Moderate
Dec2Low

Air quality in Tōno in May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.

Air quality in Tōno is worst in April — around 19 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (December, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1319 µg/m³Dec 179 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb13Moderate
Mar18Moderate
Apr19Moderate
May17Moderate
Jun12Moderate
Jul11Good
Aug9Good
Sep10Good
Oct10Good
Nov10Good
Dec9Good
Location & terrain

Where is Tōno?

Tōno sits at 39.3°N, 141.5°E, 328 m above sea level, in Japan. The nearest listed city is Kamaishi, 29 km away.

Topography around Tōno

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

Within 3 km, the terrain around Tōno has large variations in elevation — a maximum elevation change of 667 m around an average of 405 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,177 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,980 m.

The land around Tōno is covered by trees (70%) within 3 km, trees (89%) within 16 km, and trees (66%) and water (25%) within 80 km.

3 km
667 m
16 km
1,177 m
80 km
1,980 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Kamaishi 29 km · Ōfunato 31 km · Rikuzen-Takata 35 km · Kitakami 36 km · Hanamaki 37 km · Ōshū 37 km · Kanegasaki 38 km · Yamada 40 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 Tōno (39.3167°, 141.5333°, elevation 328 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).