Saikai weather in November

In November, Saikai sees average daytime highs of 17°C and overnight lows near 14°C, with 98 mm of rain across 8 wet days and about 10.3 hours of daylight. It is the 7th-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 19°C in the first days to 15°C by the end. The sky is clear or mostly clear about 38% of the time in November, and the air most often feels dry.

Daylight stretches from about 10 h 42 min at the start of November to 10 hours by month's end. Set against the rest of the year, November is Saikai's 2nd-clearest and 5th-windiest month. For the whole year in context, see Saikai's year-round climate.

Daytime high
17°
7th warmest
Overnight low
14°
6th coldest
Rainfall
98 mm
8 wet days
Daylight
10 h 18 min
6:58 AM – 5:15 PM
Cloud cover
52%
2nd clearest
Wind
15 km/h
5th windiest
Solar energy
2.7 kWh/m²
Travel score
5.8
out of 10

Temperature in November

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 19°C in the first days to 15°C by the end.

A typical November day in Saikai reaches about 17°C in the afternoon and slips back to 14°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 20°C. Set against its neighbours, November runs about 5°C cooler than October and about 5°C warmer than December.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
12016
21916
31916
41916
51915
61915
71915
81815
91815
101815
111815
121814
131814
141714
151714
161714
171713
181713
191613
201613
211613
221612
231612
241612
251512
261512
271512
281511
291511
301511

How November really feels in Saikai

Once humidity and wind are folded in, November 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

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

Saikai weather by month

How November compares with the rest of the year at a glance. November is the 7th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan10° / 709.60.510.12.1
Feb10° / 8590.410.82.4
Mar13° / 13411.1011.73.6
Apr17° / 13°15810.7012.85.3
May21° / 17°17710.4013.76.3
Jun24° / 21°37215.8014.15.7
Jul27° / 25°30616.20145.3
Aug29° / 26°18214.1013.25.2
Sep26° / 23°18811.3012.26.5
Oct22° / 19°1096.7011.27.4
Nov17° / 14°988010.35.8
Dec12° / 819.209.93.3

Cloud cover in November

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% of the time in November.

Beyond those clear spells, partly cloudy skies cover about 17% of November, with mostly cloudy or overcast conditions the remaining 45%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16238
26238
36139
46040
56040
65941
75941
85842
95743
105644
115545
125545
135347
145347
155347
165347
175248
185248
195248
205248
215248
225248
235248
245248
255248
265248
275347
285347
295347
305149

Chance of precipitation in November

Any precipitation

Saikai gets around 98 mm of rain over 8 wet days in November. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 27% and peaks near 29% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
123
224
324
425
525
625
726
826
927
1027
1127
1227
1327
1427
1527
1627
1727
1827
1926
2027
2127
2227
2327
2427
2527
2628
2728
2828
2929
3029

Humidity in November

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, November lands in the dry band about 77% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
16123133
26123133
36222133
46321133
56521122
66620122
76719122
86818122
96918112
107117111
117117111
127316101
137316101
14751591
15771481
16791470
17801370
18811360
19831250
20841150
21851140
22861040
23871030
2488930
2589830
2690820
2791720
2891720
2992620
3093520

Wind in November

Winds average 15 km/h in November.

Across November, daily wind ranges from about 14 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2716light breeze
2816light breeze
2916light breeze
3016light breeze

Sunrise & sunset in November

DaylightNight

Daylight runs from about 10 h 42 min at the start of November to 10 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 42 minutes over November. Sunrise moves from 6:45 AM to 7:11 AM, and sunset from 5:25 PM to 5:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
110.76:455:25
210.66:465:24
310.66:475:23
410.66:475:22
510.66:485:22
610.56:495:21
710.56:505:20
810.56:515:19
910.46:525:19
1010.46:535:18
1110.46:545:17
1210.46:555:17
1310.36:565:16
1410.36:575:16
1510.36:585:15
1610.36:585:15
1710.26:595:14
1810.27:005:14
1910.27:015:13
2010.27:025:13
2110.27:035:13
2210.17:045:12
2310.17:055:12
2410.17:065:12
2510.17:075:11
2610.17:075:11
2710.07:085:11
2810.07:095:11
2910.07:105:11
3010.07:115:11

Solar energy in November

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in November, about 2.7 kWh/m².

For context, solar energy here swings from a low near 2.14 kWh/m² to a high of 5.41 kWh/m² in May across the year — November's 2.7 kWh/m² sits near the bottom.

01234151015202530
Solar energy (kWh/m²)Level
13.2Moderate
23.2Moderate
33.1Moderate
43.1Moderate
53.1Moderate
63.0Moderate
73.0Moderate
82.9Moderate
92.9Moderate
102.9Moderate
112.8Moderate
122.8Moderate
132.8Moderate
142.7Moderate
152.7Moderate
162.7Moderate
172.6Moderate
182.6Moderate
192.6Moderate
202.5Moderate
212.5Moderate
222.5Moderate
232.5Moderate
242.5Moderate
252.4Moderate
262.4Moderate
272.4Moderate
282.4Moderate
292.4Moderate
302.3Moderate
Planning a trip in November

Hazard calendar for Saikai

In seasonPeak

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

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

Saikai'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 November a good time to visit Saikai?

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

5.8
Sightseeing
4th-best month of the year
1.5
Beach & pool
7th-best month of the year

November is a reasonable time to visit Saikai for sightseeing.

What to pack for Saikai in November

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

In November, Saikai sees daytime highs around 17°C and nights near 14°C. Worth packing: rain gear. About 8 days see rain.

rain gear

Sea temperature near Saikai in November

The nearest coast averages about 21°C in November — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 13 km away) is warmest in August at about 27°C and coldest in February near 15°C.

It's comfortable for a long swim from May 27 to Nov 29 — about 6.1 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb15Cool
Mar16Cool
Apr17Cool
May19Cool
Jun22Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct24Refreshing
Nov21Refreshing
Dec19Cool

UV index in Saikai in November

LowModerateHighVery highExtreme

Clear-sky midday UV in November peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Saikai peaks around July 15 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 highVery highModerateJul 15UV 10Dec 21UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr7Very high
May8Very high
Jun9Very high
Jul10Extreme
Aug8Very high
Sep9Very high
Oct7High
Nov4Moderate
Dec3Moderate

Air quality in Saikai in November

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Saikai is worst in April — around 24 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (October, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateModerateGoodModerateApr 1324 µg/m³Oct 1212 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb19Moderate
Mar23Moderate
Apr24Moderate
May21Moderate
Jun17Moderate
Jul12Good
Aug12Moderate
Sep12Good
Oct11Good
Nov14Moderate
Dec13Moderate
Location & terrain

Where is Saikai?

Saikai sits at 33.0°N, 129.7°E, 184 m above sea level, in Japan. The nearest listed city is Sasebo, 21 km away.

Topography around Saikai

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

Within 3 km, the terrain around Saikai has significant variations in elevation — a maximum elevation change of 353 m around an average of 182 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 564 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,455 m.

The land around Saikai is covered by trees (96%) within 3 km, water (55%) and trees (42%) within 16 km, and water (68%) and trees (24%) within 80 km.

3 km
353 m
16 km
564 m
80 km
1,455 m
treesgrasslandcroplandartificial surfaceswater
November weather nearby: Sasebo 21 km · Togitsu 23 km · Ōmura 26 km · Obita 27 km · Arita 30 km · Nagasaki 32 km · Ureshinomachi-shimojuku 33 km · Imarichō-kō 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 Saikai (32.9839°, 129.6809°, elevation 184 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).