Annual mean 17°C · wettest around June · prevailing wind NW
Warmest
31.7 °C
Coldest
8.2 °C
Wettest
29%
Windiest
4.5 m/s
Prevailing
NW
4.0 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Karatsu over the whole year is 17°C. August is the hottest month, with highs of about 31°C; January is the coldest, with lows of about 5°C. Karatsu has no sharply defined rainy season: the chance of rain on a given day runs from 11% in December, the driest month, to 23% in June, the wettest. Winds in Karatsu are highest in February, averaging 3.6 m/s (13 km/h), and lightest in November, at 3.0 m/s (11 km/h). The prevailing wind is from the NW. The clearest skies in Karatsu come in November, when the sky is typically 54% covered; June is the cloudiest month, at 68%.
Month by month Karatsu climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
9°C
5°C
5°C
13%
65%
3.3 m/s
2
0
38
February
10°C
6°C
5°C
15%
63%
3.6 m/s
3
0
40
March
14°C
9°C
10°C
17%
59%
3.5 m/s
22
0
69
April
18°C
13°C
16°C
16%
58%
3.6 m/s
60
2
81
May
22°C
17°C
21°C
17%
59%
3.3 m/s
83
19
62
June
25°C
21°C
26°C
23%
68%
3.2 m/s
58
55
21
July
29°C
26°C
32°C
21%
66%
3.4 m/s
11
45
2
August
31°C
26°C
34°C
18%
57%
3.4 m/s
6
31
2
September
27°C
23°C
29°C
20%
64%
3.5 m/s
34
55
11
October
23°C
18°C
21°C
12%
58%
3.4 m/s
76
23
60
November
17°C
12°C
15°C
12%
54%
3.0 m/s
55
2
82
December
11°C
7°C
7°C
11%
65%
3.3 m/s
6
0
49
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Karatsu weather by season
Year round, Karatsu has days of about 9°C at their warmest in January, its coolest month, and 31°C in August, its warmest; the coolest hours of the day run from 5°C to 26°C through the year, and the average temperature over the year is 17°C around the clock. Rain is most likely around June and least likely around December. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Karatsu weather in winterDecember to February
High 10°CLow 6°CRain 13%
Winter in Karatsu has typical daily highs of about 10°C and lows of about 6°C, with a 13% chance of rain on a given day.
Karatsu weather in springMarch to May
High 18°CLow 13°CRain 17%
Spring in Karatsu has typical daily highs of about 18°C and lows of about 13°C, with a 17% chance of rain on a given day.
Karatsu weather in summerJune to August
High 28°CLow 24°CRain 21%
Summer in Karatsu has typical daily highs of about 28°C and lows of about 24°C, with a 21% chance of rain on a given day.
Karatsu weather in autumnSeptember to November
High 22°CLow 18°CRain 15%
Autumn in Karatsu has typical daily highs of about 22°C and lows of about 18°C, with a 15% chance of rain on a given day.
When is the rainy season in Karatsu?
Karatsu has no sharply defined rainy season: the chance of rain on a given day runs from 11% in December, the driest month, to 23% in June, the wettest.
What time of year is Karatsu windiest?
Winds in Karatsu are highest in February, averaging 3.6 m/s (13 km/h), and lightest in November, at 3.0 m/s (11 km/h). The prevailing wind is from the NW.
What is the average temperature in Karatsu year round?
The average temperature in Karatsu over the whole year is 17°C. August is the hottest month, with highs of about 31°C; January is the coldest, with lows of about 5°C.