Susaki weather in May

In May, Susaki sees average daytime highs of 22°C and overnight lows near 14°C, with 242 mm of rain across 13.4 wet days and about 13.7 hours of daylight. It is the 5th-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 21°C in the first days to 23°C by the end. The sky is clear or mostly clear about 25% 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 hours by month's end. Set against the rest of the year, May is Susaki's 10th-clearest and 7th-windiest month. For the whole year in context, see Susaki's year-round climate.

Daytime high
22°
5th warmest
Overnight low
14°
8th coldest
Rainfall
242 mm
13.4 wet days
Daylight
13 h 42 min
5:11 AM – 6:55 PM
Cloud cover
67%
10th clearest
Wind
7 km/h
7th windiest
Solar energy
5.53 kWh/m²
Travel score
6.1
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 21°C in the first days to 23°C by the end.

A typical May day in Susaki reaches about 22°C in the afternoon and slips back to 14°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 26°C. Set against its neighbours, May runs about 4°C warmer than April and about 3°C cooler than June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12112
22112
32112
42112
52112
62112
72113
82213
92213
102213
112213
122213
132213
142214
152214
162214
172214
182214
192214
202314
212314
222315
232315
242315
252315
262315
272315
282315
292315
302316
312316

How May really feels in Susaki

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.

Susaki weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 696.41.3101.9
Feb10° / 968.51.510.82.3
Mar14° / 159120.411.73.8
Apr18° / 20111.70.112.85.6
May22° / 14°24213.4013.76.1
Jun25° / 18°37219.7014.24.9
Jul29° / 22°38422.40144.0
Aug29° / 23°32522.4013.23.8
Sep27° / 20°34218.3012.25.2
Oct22° / 14°23011.4011.26.6
Nov17° / 1148.4010.35.5
Dec11° / 876.60.59.83.1

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 11% of May, with mostly cloudy or overcast conditions the remaining 64%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14456
24357
34258
44159
54060
63961
73961
83862
93664
103664
113565
123565
133664
143664
153664
163565
173664
183664
193565
203565
213565
223565
233565
243466
253466
263367
273268
283268
293169
303070
312971

Chance of precipitation in May

Any precipitation

Susaki gets around 242 mm of rain over 13.4 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 43% and peaks near 48% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
138
238
339
439
540
640
741
842
942
1043
1143
1243
1343
1443
1543
1643
1743
1842
1942
2042
2143
2243
2343
2444
2544
2644
2745
2845
2946
3047
3148

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 49% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
16920101
26721102
36622102
46423112
56224113
66125113
76026113
85926114
95827114
105728114
115728114
125629114
135430115
145430115
155331115
165232124
175133124
184934134
194834134
204635144
214536154
224336164
234137174
244037194
253838204
263538224
273338245
283138265
292938286
302638306
312437327

Wind in May

Winds average 7 km/h in May.

Across May, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in May

DaylightNight

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

Days grow by about 42 minutes over May. Sunrise moves from 5:25 AM to 5:03 AM, and sunset from 6:43 PM to 7:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.35:256:43
213.35:246:44
313.45:236:45
413.45:226:46
513.45:216:46
613.55:206:47
713.55:196:48
813.55:186:49
913.55:176:49
1013.65:166:50
1113.65:156:51
1213.65:156:52
1313.65:146:52
1413.75:136:53
1513.75:126:54
1613.75:116:55
1713.75:116:55
1813.85:106:56
1913.85:096:57
2013.85:096:58
2113.85:086:58
2213.95:086:59
2313.95:077:00
2413.95:067:00
2513.95:067:01
2613.95:057:02
2714.05:057:03
2814.05:057:03
2914.05:047:04
3014.05:047:04
3114.05:037:05

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.53 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.55 kWh/m² to a high of 5.53 kWh/m² in May across the year — May's 5.53 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
145.5Bright
155.6Bright
165.6Bright
175.6Bright
185.6Bright
195.6Bright
205.6Bright
215.6Bright
225.6Bright
235.6Bright
245.6Bright
255.5Bright
265.5Bright
275.5Bright
285.5Bright
295.4Bright
305.4Bright
315.3Bright
Planning a trip in May

Hazard calendar for Susaki

In seasonPeak

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

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

Susaki's rainy season runs April–October, when most of the year's rain falls.

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

Is May a good time to visit Susaki?

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

6.1
Sightseeing
2nd-best month of the year
4.3
Beach & pool
6th-best month of the year

May is a reasonable time to visit Susaki for sightseeing.

What to pack for Susaki in May

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

In May, Susaki sees daytime highs around 22°C and nights near 14°C. Worth packing: light clothes, rain gear and sun protection. About 13 days see rain.

light clothesrain gearsun protection

Sea temperature near Susaki in May

The nearest coast averages about 21°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 28°C and coldest in February near 17°C.

It's comfortable for a long swim from May 8 to Dec 15 — about 7.3 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan18Cool
Feb17Cool
Mar17Cool
Apr18Cool
May21Refreshing
Jun23Refreshing
Jul26Warm
Aug28Warm
Sep27Warm
Oct25Warm
Nov23Refreshing
Dec20Cool

UV index in Susaki 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 Susaki peaks around July 11 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highModerateJul 11UV 10Dec 22UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr7High
May9Very high
Jun10Extreme
Jul11Extreme
Aug10Very high
Sep10Very high
Oct7High
Nov4Moderate
Dec3Moderate

Air quality in Susaki 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 Susaki is worst in April — around 22 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (October, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 1321 µg/m³Oct 1311 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb16Moderate
Mar20Moderate
Apr22Moderate
May19Moderate
Jun16Moderate
Jul13Moderate
Aug12Moderate
Sep11Good
Oct11Good
Nov12Good
Dec11Good
Location & terrain

Where is Susaki?

Susaki sits at 33.4°N, 133.3°E, 6 m above sea level, in Japan. The nearest listed city is Tosa, 19 km away.

Topography around Susaki

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

Within 3 km, the terrain around Susaki has significant variations in elevation — a maximum elevation change of 327 m around an average of 50 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,002 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,894 m.

The land around Susaki is covered by trees (52%) and water (23%) within 3 km, trees (60%) and water (34%) within 16 km, and trees (61%) and water (34%) within 80 km.

3 km
327 m
16 km
1,002 m
80 km
1,894 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Tosa 19 km · Ino 22 km · Kochi 28 km · Shinagawa 38 km · Nankoku 38 km · Yamashita 43 km · Tosayamadachō-nakano 43 km · Nakamura 57 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 Susaki (33.3947°, 133.2913°, 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).