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Shirahama weather by month
Check out Shirahama weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.
Temperature in Shirahama (°C)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max temperature (daytime) | 10 |
10 |
13 |
18 |
22 |
25 |
28 |
30 |
27 |
22 |
17 |
12 |
| Min temperature (night-time) | 2 |
3 |
5 |
11 |
15 |
19 |
23 |
23 |
20 |
15 |
10 |
5 |
| Heat & Humidity | 0 |
0 |
0 |
0 |
0 |
L |
H |
H |
M |
0 |
0 |
0 |
| Sea temperature | 18 |
17 |
17 |
18 |
20 |
23 |
26 |
27 |
27 |
25 |
22 |
20 |
Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme
Sunshine & UV index in Shirahama
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daily hours of sunshine | ||||||||||||
| Daily hours of daylight | 10 |
11 |
12 |
13 |
14 |
14 |
14 |
13 |
12 |
11 |
10 |
10 |
| UV Index (Maximum) | 3 |
4 |
6 |
8 |
9 |
10 |
11 |
10 |
8 |
6 |
4 |
3 |
Rainfall in Shirahama
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Number of days with some rain | 14 |
15 |
17 |
16 |
16 |
19 |
18 |
17 |
18 |
15 |
13 |
12 |
| Average monthly rainfall (mm) | 73 |
88 |
135 |
212 |
228 |
323 |
245 |
230 |
297 |
190 |
145 |
63 |
More about Shirahama
Shirahama by month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Recommended for Japan
The climate guide for Japan (Shirahama) 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 Shirahama?
Shirahama has a temperate climate with hot summers and some rainfall in all months.
Shirahama weather in January
Expect daytime maximum temperatures of 10°C in Shirahama, Japan in January based on long-term weather averages. There are 5 hours of sunshine per day on average with 14 days with some rainfall and typically 73 mm of rainfall in the month.
- 10°C max day temperature
10 - 5 hours of sunshine per day
- 14 days with some rainfall
14 - 2°C min night temperature
2 - 10 hours of daylight per day
10 - No heat & humidity
0 - 73 mm of monthly rainfall
73 - 3 (Moderate) UV index
3 - 18°C sea temperature
18
Shirahama weather in February
Expect daytime maximum temperatures of 10°C in Shirahama, Japan in February based on long-term weather averages. There are 5 hours of sunshine per day on average with 15 days with some rainfall and typically 88 mm of rainfall in the month.
- 10°C max day temperature
10 - 5 hours of sunshine per day
- 15 days with some rainfall
15 - 3°C min night temperature
3 - 11 hours of daylight per day
11 - No heat & humidity
0 - 88 mm of monthly rainfall
88 - 4 (Moderate) UV index
4 - 17°C sea temperature
17
Shirahama weather in March
Expect daytime maximum temperatures of 13°C in Shirahama, Japan in March based on long-term weather averages. There are 6 hours of sunshine per day on average with 17 days with some rainfall and typically 135 mm of rainfall in the month.
- 13°C max day temperature
13 - 6 hours of sunshine per day
- 17 days with some rainfall
17 - 5°C min night temperature
5 - 12 hours of daylight per day
12 - No heat & humidity
0 - 135 mm of monthly rainfall
135 - 6 (High) UV index
6 - 17°C sea temperature
17
Shirahama weather in April
Expect daytime maximum temperatures of 18°C in Shirahama, Japan in April based on long-term weather averages. There are 6 hours of sunshine per day on average with 16 days with some rainfall and typically 212 mm of rainfall in the month.
- 18°C max day temperature
18 - 6 hours of sunshine per day
- 16 days with some rainfall
16 - 11°C min night temperature
11 - 13 hours of daylight per day
13 - No heat & humidity
0 - 212 mm of monthly rainfall
212 - 8 (Very High) UV index
8 - 18°C sea temperature
18
Shirahama weather in May
Expect daytime maximum temperatures of 22°C in Shirahama, Japan in May based on long-term weather averages. There are 6 hours of sunshine per day on average with 16 days with some rainfall and typically 228 mm of rainfall in the month.
- 22°C max day temperature
22 - 6 hours of sunshine per day
- 16 days with some rainfall
16 - 15°C min night temperature
15 - 14 hours of daylight per day
14 - No heat & humidity
0 - 228 mm of monthly rainfall
228 - 9 (Very High) UV index
9 - 20°C sea temperature
20
Shirahama weather in June
Expect daytime maximum temperatures of 25°C in Shirahama, Japan in June based on long-term weather averages. There are 5 hours of sunshine per day on average with 19 days with some rainfall and typically 323 mm of rainfall in the month.
- 25°C max day temperature
25 - 5 hours of sunshine per day
- 19 days with some rainfall
19 - 19°C min night temperature
19 - 14 hours of daylight per day
14 - Low heat & humidity
L - 323 mm of monthly rainfall
323 - 10 (Very High) UV index
10 - 23°C sea temperature
23
Shirahama weather in July
Expect daytime maximum temperatures of 28°C in Shirahama, Japan in July and high heat and humidity based on long-term weather averages. There are 6 hours of sunshine per day on average with 18 days with some rainfall and typically 245 mm of rainfall in the month.
- 28°C max day temperature
28 - 6 hours of sunshine per day
- 18 days with some rainfall
18 - 23°C min night temperature
23 - 14 hours of daylight per day
14 - High heat & humidity
H - 245 mm of monthly rainfall
245 - 11 (Extreme) UV index
11 - 26°C sea temperature
26
Shirahama weather in August
Expect daytime maximum temperatures of 30°C in Shirahama, Japan in August and high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with 17 days with some rainfall and typically 230 mm of rainfall in the month.
- 30°C max day temperature
30 - 7 hours of sunshine per day
- 17 days with some rainfall
17 - 23°C min night temperature
23 - 13 hours of daylight per day
13 - High heat & humidity
H - 230 mm of monthly rainfall
230 - 10 (Very High) UV index
10 - 27°C sea temperature
27
Shirahama weather in September
Expect daytime maximum temperatures of 27°C in Shirahama, Japan in September based on long-term weather averages. There are 5 hours of sunshine per day on average with 18 days with some rainfall and typically 297 mm of rainfall in the month.
- 27°C max day temperature
27 - 5 hours of sunshine per day
- 18 days with some rainfall
18 - 20°C min night temperature
20 - 12 hours of daylight per day
12 - Moderate heat & humidity
M - 297 mm of monthly rainfall
297 - 8 (Very High) UV index
8 - 27°C sea temperature
27
Shirahama weather in October
Expect daytime maximum temperatures of 22°C in Shirahama, Japan in October based on long-term weather averages. There are 5 hours of sunshine per day on average with 15 days with some rainfall and typically 190 mm of rainfall in the month.
- 22°C max day temperature
22 - 5 hours of sunshine per day
- 15 days with some rainfall
15 - 15°C min night temperature
15 - 11 hours of daylight per day
11 - No heat & humidity
0 - 190 mm of monthly rainfall
190 - 6 (High) UV index
6 - 25°C sea temperature
25
Shirahama weather in November
Expect daytime maximum temperatures of 17°C in Shirahama, Japan in November based on long-term weather averages. There are 5 hours of sunshine per day on average with 13 days with some rainfall and typically 145 mm of rainfall in the month.
- 17°C max day temperature
17 - 5 hours of sunshine per day
- 13 days with some rainfall
13 - 10°C min night temperature
10 - 10 hours of daylight per day
10 - No heat & humidity
0 - 145 mm of monthly rainfall
145 - 4 (Moderate) UV index
4 - 22°C sea temperature
22
Shirahama weather in December
Expect daytime maximum temperatures of 12°C in Shirahama, Japan in December based on long-term weather averages. There are 5 hours of sunshine per day on average with 12 days with some rainfall and typically 63 mm of rainfall in the month.
- 12°C max day temperature
12 - 5 hours of sunshine per day
- 12 days with some rainfall
12 - 5°C min night temperature
5 - 10 hours of daylight per day
10 - No heat & humidity
0 - 63 mm of monthly rainfall
63 - 3 (Moderate) UV index
3 - 20°C sea temperature
20
More about Shirahama
Shirahama by month
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Recommended for Japan
- Explore latest offers on Fred Olsen Cruises in 2026/2027
- Find last minute deals or early bird discounts
- Filter offers by price, destination, ship & departure point
The climate guide for Japan (Shirahama) 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.
Compare Shirahama weather with the UK
The weather chart below compares the average monthly maximum daytime temperature for Shirahama, Japan and the UK (London).
Maximum daytime temperature (°C)
Metric (°C / mm) | Imperial (°F / inches)
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