Buzen weather in May

In May, Buzen sees average daytime highs of 23°C and overnight lows near 16°C, with 143 mm of rain across 11 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 24°C by the end. The sky is clear or mostly clear about 28% 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 Buzen's 10th-clearest and 6th-windiest month. For the whole year in context, see Buzen's year-round climate.

Daytime high
23°
5th warmest
Overnight low
16°
8th coldest
Rainfall
143 mm
11 wet days
Daylight
13 h 42 min
5:20 AM – 7:04 PM
Cloud cover
65%
10th clearest
Wind
9 km/h
6th windiest
Solar energy
5.34 kWh/m²
Travel score
6.5
out of 10

Buzen is city in Fukuoka Prefecture, Japan.

Density
242/km²
people per km²
Founded
1955

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 21°C in the first days to 24°C by the end.

A typical May day in Buzen reaches about 23°C in the afternoon and slips back to 16°C overnight — a 7°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 5°C warmer than April and about 3°C cooler than June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12114
22114
32114
42114
52215
62215
72215
82215
92215
102215
112215
122216
132216
142316
152316
162316
172316
182316
192316
202317
212317
222317
232317
242417
252417
262417
272417
282418
292418
302418
312418

How May really feels in Buzen

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.

Buzen 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 / 618.42101.6
Feb / 7091.910.82.0
Mar13° / 11211.50.611.73.5
Apr18° / 11°12510.7012.85.7
May23° / 16°14311013.76.5
Jun26° / 20°28215.4014.25.6
Jul30° / 24°22116.10144.3
Aug30° / 25°14414.5013.24.3
Sep27° / 21°16713.1012.25.9
Oct22° / 16°1118.1011.27.0
Nov16° / 10°758.1010.35.4
Dec11° / 618.50.79.82.8

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 28% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 13% of May, with mostly cloudy or overcast conditions the remaining 60%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14456
24456
34456
44357
54357
64258
74159
84159
94060
104060
113961
124060
134060
144159
154159
164060
174159
184159
194060
204060
214060
224060
234060
243961
253961
263862
273862
283763
293763
303664
313565

Chance of precipitation in May

Any precipitation

Buzen gets around 143 mm of rain over 11 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 35% and peaks near 37% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
134
233
333
433
533
634
734
834
934
1035
1135
1235
1335
1435
1535
1635
1735
1835
1936
2036
2136
2236
2336
2436
2536
2636
2736
2836
2936
3037
3137

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 39% of days. Sticky, muggy-or-worse air turns up on roughly 7% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
160261130
258271230
357281230
455291330
553301340
651311440
751311440
849321450
948331550
1047331550
1146341550
1245351560
1344361560
1442371560
1541371660
1639381660
1738391760
1836391860
1935391970
2033392070
2132392270
2230392370
2329392480
2427382680
2526382790
2624372990
27233631100
28213533110
29193435120
30183237130
31163138151

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 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

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 5:33 AM to 5:12 AM, and sunset from 6:52 PM to 7:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.35:336:52
213.45:326:53
313.45:316:54
413.45:306:55
513.45:296:55
613.55:286:56
713.55:276:57
813.55:266:58
913.65:256:58
1013.65:246:59
1113.65:247:00
1213.65:237:01
1313.75:227:02
1413.75:217:02
1513.75:207:03
1613.75:207:04
1713.85:197:05
1813.85:187:05
1913.85:187:06
2013.85:177:07
2113.95:167:07
2213.95:167:08
2313.95:157:09
2413.95:157:10
2513.95:147:10
2614.05:147:11
2714.05:137:12
2814.05:137:12
2914.05:127:13
3014.05:127:14
3114.05:127:14

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.34 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.25 kWh/m² to a high of 5.34 kWh/m² in May across the year — May's 5.34 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.4Bright
165.4Bright
175.4Bright
185.4Bright
195.4Bright
205.4Bright
215.4Bright
225.4Bright
235.4Bright
245.4Bright
255.4Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.2Bright
315.2Bright
Planning a trip in May

Hazard calendar for Buzen

In seasonPeak

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

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

Buzen's rainy season runs May–September, 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 Buzen?

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

6.5
Sightseeing
2nd-best month of the year
4.9
Beach & pool
5th-best month of the year

May is a reasonable time to visit Buzen for sightseeing.

What to pack for Buzen in May

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

In May, Buzen sees daytime highs around 23°C and nights near 16°C. Worth packing: light clothes, rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

Sea temperature near Buzen 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 12°C.

It's comfortable for a long swim from Jun 6 to Nov 9 — about 5.2 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan13Bracing
Feb12Bracing
Mar12Bracing
Apr14Bracing
May18Cool
Jun21Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct23Refreshing
Nov19Cool
Dec16Cool

UV index in Buzen in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Buzen peaks around June 21 at about 10 (very high) — 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 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateJun 21UV 10Dec 21UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr8Very high
May8Very high
Jun10Very high
Jul10Very high
Aug9Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Buzen 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 Buzen is worst in March — around 27 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (October, 12 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2026 µg/m³Oct 1212 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb20Moderate
Mar27Moderate
Apr24Moderate
May21Moderate
Jun18Moderate
Jul16Moderate
Aug19Moderate
Sep13Moderate
Oct12Good
Nov14Moderate
Dec13Moderate
Location & terrain

Where is Buzen?

Buzen sits at 33.6°N, 131.1°E, 20 m above sea level, in Japan. The nearest listed city is Nakatsu, 6.0 km away.

Topography around Buzen

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

Within 3 km, the terrain around Buzen has only modest variations in elevation — a maximum elevation change of 116 m around an average of 18 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,072 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,799 m.

The land around Buzen is covered by artificial surfaces (30%), cropland (29%) and water (26%) within 3 km, trees (40%) and water (39%) within 16 km, and trees (50%) and water (34%) within 80 km.

3 km
116 m
16 km
1,072 m
80 km
1,799 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Nakatsu 6.0 km · Tsuiki 11 km · Yukuhashi 19 km · Yokkaichi 20 km · Miyako 22 km · Kanda 23 km · Kawasaki 29 km · Bungo-Takada-shi 30 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 Buzen (33.6115°, 131.13°, elevation 20 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).