Yakami weather in May

In May, Yakami sees average daytime highs of 21°C and overnight lows near 16°C, with 143 mm of rain across 10.4 wet days and about 13.8 hours of daylight. It is the 6th-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 20°C in the first days to 23°C by the end. The sky is clear or mostly clear about 29% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 18 min at the start of May to 14 h 06 min by month's end. Set against the rest of the year, May is Yakami's 10th-clearest and 9th-windiest month. For the whole year in context, see Yakami's year-round climate.

Daytime high
21°
6th warmest
Overnight low
16°
7th coldest
Rainfall
143 mm
10.4 wet days
Daylight
13 h 48 min
5:05 AM – 6:51 PM
Cloud cover
63%
10th clearest
Wind
12 km/h
9th windiest
Solar energy
5.56 kWh/m²
Travel score
6.4
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 20°C in the first days to 23°C by the end.

A typical May day in Yakami reaches about 21°C in the afternoon and slips back to 16°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 24°C. Set against its neighbours, May runs about 4°C warmer than April and about 3°C cooler than June.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
12014
22014
32014
42014
52014
62014
72015
82115
92115
102115
112115
122115
132115
142115
152116
162116
172116
182116
192216
202216
212216
222217
232217
242217
252217
262217
272217
282217
292318
302318
312318

How May really feels in Yakami

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.

Yakami weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 639.50.6102.0
Feb10° / 699.7110.72.2
Mar13° / 10511.3011.73.6
Apr17° / 11°11710.1012.85.6
May21° / 16°14310.4013.86.4
Jun24° / 20°21113.6014.25.9
Jul28° / 24°20313.50145.3
Aug30° / 25°12710.5013.35.1
Sep27° / 22°20912.5012.26.1
Oct22° / 17°17810.1011.16.7
Nov17° / 12°837.8010.25.6
Dec12° / 6990.19.83.2

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% 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 57%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14852
24852
34654
44654
54654
64555
74357
84456
94357
104258
114357
124258
134258
144357
154456
164357
174357
184357
194357
204456
214357
224357
234357
244258
254258
264258
274258
284060
293961
303862
313763

Chance of precipitation in May

Any precipitation

Yakami gets around 143 mm of rain over 10.4 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 33% and peaks near 35% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
132
232
332
432
533
633
734
834
935
1035
1135
1235
1335
1435
1534
1634
1733
1833
1932
2032
2132
2232
2332
2432
2531
2631
2731
2831
2932
3032
3133

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 38% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
16028102
25929102
35730112
45631112
55332123
65233123
75134123
84935133
94835133
104736143
114537144
124438144
134339154
144140154
154041164
163941174
173742184
183642194
193442204
203342214
213141234
223041255
232841265
242740285
252539306
262338326
272237347
282036368
291835389
3017344010
3115324111

Wind in May

Winds average 12 km/h in May.

Across May, daily wind ranges from about 11 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212light breeze
1312light breeze
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 18 min at the start of May to 14 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 48 minutes over May. Sunrise moves from 5:19 AM to 4:57 AM, and sunset from 6:40 PM to 7:02 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.35:196:40
213.45:186:40
313.45:176:41
413.45:166:42
513.55:156:43
613.55:146:44
713.55:136:44
813.65:126:45
913.65:116:46
1013.65:106:47
1113.65:096:48
1213.75:086:48
1313.75:076:49
1413.75:076:50
1513.75:066:51
1613.85:056:51
1713.85:046:52
1813.85:046:53
1913.85:036:54
2013.95:026:54
2113.95:026:55
2213.95:016:56
2313.95:006:57
2414.05:006:57
2514.04:596:58
2614.04:596:59
2714.04:586:59
2814.04:587:00
2914.14:587:01
3014.14:577:01
3114.14:577:02

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.56 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.49 kWh/m² to a high of 5.56 kWh/m² in May across the year — May's 5.56 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.5Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.5Bright
135.5Bright
145.6Bright
155.6Bright
165.6Bright
175.6Bright
185.6Bright
195.6Bright
205.6Bright
215.6Bright
225.6Bright
235.6Bright
245.6Bright
255.6Bright
265.6Bright
275.6Bright
285.5Bright
295.5Bright
305.5Bright
315.5Bright
Planning a trip in May

Hazard calendar for Yakami

In seasonPeak

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

Yakami 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 Yakami?

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

6.4
Sightseeing
2nd-best month of the year
4.1
Beach & pool
6th-best month of the year

May is a reasonable time to visit Yakami for sightseeing.

What to pack for Yakami in May

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

In May, Yakami sees daytime highs around 21°C and nights near 16°C. Worth packing: rain gear and sun protection. About 10 days see rain.

rain gearsun protection

Sea temperature near Yakami in May

The nearest coast averages about 18°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 27°C and coldest in February near 14°C.

It's comfortable for a long swim from Jun 5 to Nov 19 — about 5.5 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan15Cool
Feb14Bracing
Mar14Bracing
Apr16Cool
May18Cool
Jun21Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct24Refreshing
Nov20Refreshing
Dec17Cool

UV index in Yakami in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Yakami peaks around July 11 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highModerateJul 11UV 10Dec 21UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr7Very high
May9Very high
Jun10Extreme
Jul10Extreme
Aug9Very high
Sep10Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Yakami 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 Yakami is worst in April — around 23 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (October, 12 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1422 µg/m³Oct 1613 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb17Moderate
Mar21Moderate
Apr23Moderate
May20Moderate
Jun18Moderate
Jul15Moderate
Aug15Moderate
Sep13Moderate
Oct12Moderate
Nov13Moderate
Dec13Moderate
Location & terrain

Where is Yakami?

Yakami sits at 34.1°N, 134.5°E, 6 m above sea level, in Japan. The nearest listed city is Takabō, 3.0 km away.

Topography around Yakami

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

Within 3 km, the terrain around Yakami has only modest variations in elevation — a maximum elevation change of 184 m around an average of 13 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 695 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,910 m.

The land around Yakami is covered by artificial surfaces (47%) and cropland (27%) within 3 km, trees (37%) and water (30%) within 16 km, and water (48%) and trees (41%) within 80 km.

3 km
184 m
16 km
695 m
80 km
1,910 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Takabō 3.0 km · Ishii 10 km · Tokushima 10 km · Narutochō-mitsuishi 12 km · Kamojimachō-jōgejima 16 km · Komatsushimachō 17 km · Higashikagawa 17 km · Awa 21 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 Yakami (34.1385°, 134.5018°, elevation 6 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).