Koya weather by month

Check out Koya weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

Temperature in Koya (°F)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
43°F maximum daytime temperature in January in Koya43
45°F maximum daytime temperature in February in Koya45
50°F maximum daytime temperature in March in Koya50
63°F maximum daytime temperature in April in Koya63
70°F maximum daytime temperature in May in Koya70
73°F maximum daytime temperature in June in Koya73
81°F maximum daytime temperature in July in Koya81
84°F maximum daytime temperature in August in Koya84
77°F maximum daytime temperature in September in Koya77
68°F maximum daytime temperature in October in Koya68
59°F maximum daytime temperature in November in Koya59
48°F maximum daytime temperature in December in Koya48
Min temperature (night-time)
30°F minimum night-time temperature in January in Koya30
30°F minimum night-time temperature in February in Koya30
34°F minimum night-time temperature in March in Koya34
45°F minimum night-time temperature in April in Koya45
54°F minimum night-time temperature in May in Koya54
61°F minimum night-time temperature in June in Koya61
68°F minimum night-time temperature in July in Koya68
70°F minimum night-time temperature in August in Koya70
64°F minimum night-time temperature in September in Koya64
52°F minimum night-time temperature in October in Koya52
43°F minimum night-time temperature in November in Koya43
34°F minimum night-time temperature in December in Koya34
Heat & Humidity
No heat & humidity in January in Koya0
No heat & humidity in February in Koya0
No heat & humidity in March in Koya0
No heat & humidity in April in Koya0
No heat & humidity in May in Koya0
No heat & humidity in June in Koya0
Low heat & humidity in July in KoyaL
Moderate heat & humidity in August in KoyaM
No heat & humidity in September in Koya0
No heat & humidity in October in Koya0
No heat & humidity in November in Koya0
No heat & humidity in December in Koya0

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

Sunshine & Daylight in Koya

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
10 hours of daylight per day in January in Koya10
11 hours of daylight per day in February in Koya11
12 hours of daylight per day in March in Koya12
13 hours of daylight per day in April in Koya13
14 hours of daylight per day in May in Koya14
14 hours of daylight per day in June in Koya14
14 hours of daylight per day in July in Koya14
13 hours of daylight per day in August in Koya13
12 hours of daylight per day in September in Koya12
11 hours of daylight per day in October in Koya11
10 hours of daylight per day in November in Koya10
10 hours of daylight per day in December in Koya10
UV Index (Maximum)
UV (maximum) index 3 (Moderate) in January in Koya3
UV (maximum) index 4 (Moderate) in February in Koya4
UV (maximum) index 6 (High) in March in Koya6
UV (maximum) index 8 (Very High) in April in Koya8
UV (maximum) index 9 (Very High) in May in Koya9
UV (maximum) index 11 (Extreme) in June in Koya11
UV (maximum) index 11 (Extreme) in July in Koya11
UV (maximum) index 10 (Very High) in August in Koya10
UV (maximum) index 9 (Very High) in September in Koya9
UV (maximum) index 6 (High) in October in Koya6
UV (maximum) index 4 (Moderate) in November in Koya4
UV (maximum) index 3 (Moderate) in December in Koya3

Rainfall in Koya

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
17 days with some rainfall in January in Koya17
17 days with some rainfall in February in Koya17
18 days with some rainfall in March in Koya18
16 days with some rainfall in April in Koya16
16 days with some rainfall in May in Koya16
19 days with some rainfall in June in Koya19
19 days with some rainfall in July in Koya19
17 days with some rainfall in August in Koya17
18 days with some rainfall in September in Koya18
15 days with some rainfall in October in Koya15
13 days with some rainfall in November in Koya13
14 days with some rainfall in December in Koya14
Average monthly rainfall (inches)
2.0 inches monthly rainfall in January in Koya2.0
2.9 inches monthly rainfall in February in Koya2.9
4.9 inches monthly rainfall in March in Koya4.9
7.5 inches monthly rainfall in April in Koya7.5
7.8 inches monthly rainfall in May in Koya7.8
11.6 inches monthly rainfall in June in Koya11.6
9.8 inches monthly rainfall in July in Koya9.8
8.3 inches monthly rainfall in August in Koya8.3
10.7 inches monthly rainfall in September in Koya10.7
6.5 inches monthly rainfall in October in Koya6.5
4.3 inches monthly rainfall in November in Koya4.3
1.7 inches monthly rainfall in December in Koya1.7

More about Koya

Koya by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Japan

Travelbag: Latest holiday sale offers worldwide

  • Explore latest sale offers on holidays in 2024/2025
  • Filter deals by continent, star rating & holiday type
  • Including Dubai, Caribbean, North America, Asia & Pacific
Go to Travelbag deal >>

View all Travelbag offers

TravelbagHoliday deal finder

The climate guide for Japan (Koya) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

What's the climate like in Koya?

Koya has a temperate climate with hot summers and some rainfall in all months.

Metric (°C)  |  Imperial (°F)

Back to top

Tropical storm risk: Koya typhoon season

% of month affected by tropical storms
0
0
0
0
0
1.6%
3%
5.6%
4.3%
2%
0
0
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

TUI: up to 7% off holidays booked online

  • Book online with TUI & save up to 7% on holidays
  • FREE child places available for select holidays
  • Pay £0 deposits with direct debit & spread the cost
Go to TUI deal >>

View all TUI offers

TUITUI deal finder

Back to top

More about Japan

Compare Koya with the USA

Below the Koya chart shows average maximum daytime temperature for Koya, Japan and the USA (Washington).

Maximum daytime temperature (°F)

Koya, Japan
USA (Washington)
43
41
45
45
50
55
63
66
70
75
73
84
81
88
84
86
77
79
68
68
59
57
48
46
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C)  |  Imperial (°F)

Compare more Koya weather >>

Back to top

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^