Shirahama weather in May
In May, Shirahama sees average daytime highs of 21°C and overnight lows near 17°C, with 177 mm of rain across 11 wet days and about 13.7 hours of daylight. It is the 6th-warmest and 5th-wettest month of the year here.
Highs climb over the month, from about 19°C in the first days to 22°C by the end. The sky is clear or mostly clear about 27% of the time in May, and the air most often feels comfortable.
Daylight stretches from about 13 h 18 min at the start of May to 14 h 06 min by month's end. Set against the rest of the year, May is Shirahama's 10th-clearest and 8th-windiest month. For the whole year in context, see Shirahama's year-round climate.
- Daytime high
- 21°
- 6th warmest
- Overnight low
- 17°
- 7th coldest
- Rainfall
- 177 mm
- 11 wet days
- Daylight
- 13 h 42 min
- 5:03 AM – 6:47 PM
- Cloud cover
- 64%
- 10th clearest
- Wind
- 16 km/h
- 8th windiest
- Solar energy
- 5.6 kWh/m²
- Travel score
- 6.2
- out of 10
Temperature in May
Highs climb over the month, from about 19°C in the first days to 22°C by the end.
A typical May day in Shirahama reaches about 21°C in the afternoon and slips back to 17°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 22°C. Set against its neighbours, May runs about 4°C warmer than April and about 3°C cooler than June.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 19 | 19 | 19 | 19 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 22 | 22 | 22 | 22 | 22 | 22 | 22 |
| Avg low (°C) | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 19 | 19 | 19 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 19 | 15 |
| 2 | 19 | 15 |
| 3 | 19 | 15 |
| 4 | 19 | 16 |
| 5 | 20 | 16 |
| 6 | 20 | 16 |
| 7 | 20 | 16 |
| 8 | 20 | 16 |
| 9 | 20 | 16 |
| 10 | 20 | 16 |
| 11 | 20 | 16 |
| 12 | 20 | 17 |
| 13 | 20 | 17 |
| 14 | 20 | 17 |
| 15 | 21 | 17 |
| 16 | 21 | 17 |
| 17 | 21 | 17 |
| 18 | 21 | 17 |
| 19 | 21 | 17 |
| 20 | 21 | 17 |
| 21 | 21 | 18 |
| 22 | 21 | 18 |
| 23 | 21 | 18 |
| 24 | 21 | 18 |
| 25 | 22 | 18 |
| 26 | 22 | 18 |
| 27 | 22 | 18 |
| 28 | 22 | 18 |
| 29 | 22 | 19 |
| 30 | 22 | 19 |
| 31 | 22 | 19 |
How May really feels in Shirahama
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.
May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Shirahama weather by month
How May compares with the rest of the year at a glance. May is the 6th-warmest and 5th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 10° / 6° | 95 | 11.6 | 0.5 | 10 | 2.3 |
| Feb | 11° / 6° | 104 | 11.1 | 0.5 | 10.7 | 2.4 |
| Mar | 13° / 9° | 151 | 12.3 | 0 | 11.7 | 3.7 |
| Apr | 17° / 13° | 158 | 11.1 | 0 | 12.8 | 5.4 |
| May | 21° / 17° | 177 | 11 | 0 | 13.7 | 6.2 |
| Jun | 24° / 21° | 293 | 15.4 | 0 | 14.2 | 5.6 |
| Jul | 27° / 24° | 246 | 14.4 | 0 | 14 | 5.7 |
| Aug | 28° / 25° | 146 | 13.3 | 0 | 13.3 | 5.6 |
| Sep | 26° / 23° | 215 | 13.3 | 0 | 12.2 | 6.1 |
| Oct | 22° / 18° | 217 | 11.2 | 0 | 11.2 | 6.6 |
| Nov | 17° / 14° | 127 | 8.8 | 0 | 10.3 | 5.8 |
| Dec | 13° / 9° | 97 | 10.1 | 0.1 | 9.8 | 3.6 |
Cloud cover in May
The sky is clear or mostly clear about 27% 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.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 47 | 47 | 45 | 45 | 44 | 43 | 42 | 41 | 40 | 40 | 40 | 39 | 39 | 39 | 39 | 39 | 39 | 39 | 39 | 39 | 40 | 39 | 39 | 39 | 38 | 38 | 38 | 37 | 37 | 36 | 35 |
| Cloudier (%) | 53 | 53 | 55 | 55 | 56 | 57 | 58 | 59 | 60 | 60 | 60 | 61 | 61 | 61 | 61 | 61 | 61 | 61 | 61 | 61 | 60 | 61 | 61 | 61 | 62 | 62 | 62 | 63 | 63 | 64 | 65 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 47 | 53 |
| 2 | 47 | 53 |
| 3 | 45 | 55 |
| 4 | 45 | 55 |
| 5 | 44 | 56 |
| 6 | 43 | 57 |
| 7 | 42 | 58 |
| 8 | 41 | 59 |
| 9 | 40 | 60 |
| 10 | 40 | 60 |
| 11 | 40 | 60 |
| 12 | 39 | 61 |
| 13 | 39 | 61 |
| 14 | 39 | 61 |
| 15 | 39 | 61 |
| 16 | 39 | 61 |
| 17 | 39 | 61 |
| 18 | 39 | 61 |
| 19 | 39 | 61 |
| 20 | 39 | 61 |
| 21 | 40 | 60 |
| 22 | 39 | 61 |
| 23 | 39 | 61 |
| 24 | 39 | 61 |
| 25 | 38 | 62 |
| 26 | 38 | 62 |
| 27 | 38 | 62 |
| 28 | 37 | 63 |
| 29 | 37 | 63 |
| 30 | 36 | 64 |
| 31 | 35 | 65 |
Chance of precipitation in May
Shirahama gets around 177 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 36% on the wettest days.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 34 | 34 | 35 | 35 | 35 | 35 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 35 | 35 | 35 | 34 | 34 | 34 | 34 | 33 | 33 | 33 | 33 | 33 | 33 | 33 | 34 | 34 | 35 |
| Rain chance (%) | |
|---|---|
| 1 | 34 |
| 2 | 34 |
| 3 | 35 |
| 4 | 35 |
| 5 | 35 |
| 6 | 35 |
| 7 | 36 |
| 8 | 36 |
| 9 | 36 |
| 10 | 36 |
| 11 | 36 |
| 12 | 36 |
| 13 | 36 |
| 14 | 36 |
| 15 | 35 |
| 16 | 35 |
| 17 | 35 |
| 18 | 34 |
| 19 | 34 |
| 20 | 34 |
| 21 | 34 |
| 22 | 33 |
| 23 | 33 |
| 24 | 33 |
| 25 | 33 |
| 26 | 33 |
| 27 | 33 |
| 28 | 33 |
| 29 | 34 |
| 30 | 34 |
| 31 | 35 |
Humidity in May
Most of May feels comfortable — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, May lands in the comfortable band about 35% of days. Sticky, muggy-or-worse air turns up on roughly 10% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 48 | 46 | 44 | 42 | 40 | 38 | 37 | 35 | 34 | 33 | 32 | 30 | 29 | 28 | 27 | 25 | 24 | 23 | 21 | 20 | 19 | 17 | 16 | 15 | 13 | 12 | 11 | 10 | 9 | 9 | 8 |
| Comfortable (%) | 31 | 31 | 32 | 32 | 33 | 33 | 34 | 34 | 35 | 36 | 36 | 37 | 38 | 39 | 39 | 39 | 39 | 39 | 39 | 39 | 38 | 38 | 37 | 36 | 35 | 34 | 33 | 31 | 30 | 28 | 27 |
| Humid (%) | 18 | 19 | 20 | 21 | 21 | 22 | 23 | 23 | 24 | 24 | 24 | 24 | 25 | 25 | 26 | 27 | 28 | 29 | 30 | 32 | 33 | 34 | 35 | 37 | 38 | 40 | 41 | 42 | 43 | 44 | 44 |
| Muggy (%) | 4 | 4 | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 9 | 9 | 9 | 10 | 10 | 11 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 19 | 21 |
| Oppressive (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| 1 | 48 | 31 | 18 | 4 | 0 |
| 2 | 46 | 31 | 19 | 4 | 0 |
| 3 | 44 | 32 | 20 | 5 | 0 |
| 4 | 42 | 32 | 21 | 5 | 0 |
| 5 | 40 | 33 | 21 | 6 | 0 |
| 6 | 38 | 33 | 22 | 6 | 0 |
| 7 | 37 | 34 | 23 | 6 | 0 |
| 8 | 35 | 34 | 23 | 7 | 0 |
| 9 | 34 | 35 | 24 | 7 | 0 |
| 10 | 33 | 36 | 24 | 8 | 0 |
| 11 | 32 | 36 | 24 | 8 | 0 |
| 12 | 30 | 37 | 24 | 8 | 0 |
| 13 | 29 | 38 | 25 | 8 | 0 |
| 14 | 28 | 39 | 25 | 8 | 0 |
| 15 | 27 | 39 | 26 | 8 | 0 |
| 16 | 25 | 39 | 27 | 8 | 0 |
| 17 | 24 | 39 | 28 | 9 | 0 |
| 18 | 23 | 39 | 29 | 9 | 0 |
| 19 | 21 | 39 | 30 | 9 | 0 |
| 20 | 20 | 39 | 32 | 10 | 0 |
| 21 | 19 | 38 | 33 | 10 | 0 |
| 22 | 17 | 38 | 34 | 11 | 0 |
| 23 | 16 | 37 | 35 | 11 | 0 |
| 24 | 15 | 36 | 37 | 12 | 0 |
| 25 | 13 | 35 | 38 | 13 | 0 |
| 26 | 12 | 34 | 40 | 14 | 0 |
| 27 | 11 | 33 | 41 | 15 | 0 |
| 28 | 10 | 31 | 42 | 16 | 1 |
| 29 | 9 | 30 | 43 | 17 | 1 |
| 30 | 9 | 28 | 44 | 19 | 1 |
| 31 | 8 | 27 | 44 | 21 | 1 |
Wind in May
Winds average 16 km/h in May.
Across May, daily wind ranges from about 15 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 17 | light breeze |
| 2 | 17 | light breeze |
| 3 | 17 | light breeze |
| 4 | 17 | light breeze |
| 5 | 17 | light breeze |
| 6 | 17 | light breeze |
| 7 | 17 | light breeze |
| 8 | 17 | light breeze |
| 9 | 17 | light breeze |
| 10 | 17 | light breeze |
| 11 | 17 | light breeze |
| 12 | 17 | light breeze |
| 13 | 16 | light breeze |
| 14 | 16 | light breeze |
| 15 | 16 | light breeze |
| 16 | 16 | light breeze |
| 17 | 16 | light breeze |
| 18 | 16 | light breeze |
| 19 | 16 | light breeze |
| 20 | 16 | light breeze |
| 21 | 16 | light breeze |
| 22 | 15 | light breeze |
| 23 | 15 | light breeze |
| 24 | 15 | light breeze |
| 25 | 15 | light breeze |
| 26 | 15 | light breeze |
| 27 | 15 | light breeze |
| 28 | 15 | light breeze |
| 29 | 15 | light breeze |
| 30 | 15 | light breeze |
| 31 | 15 | light breeze |
Sunrise & sunset in May
Daylight runs from about 13 h 18 min at the start of May to 14 h 06 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 48 minutes over May. Sunrise moves from 5:16 AM to 4:54 AM, and sunset from 6:36 PM to 6:58 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 13.3 | 13.4 | 13.4 | 13.4 | 13.4 | 13.5 | 13.5 | 13.5 | 13.6 | 13.6 | 13.6 | 13.6 | 13.7 | 13.7 | 13.7 | 13.7 | 13.8 | 13.8 | 13.8 | 13.8 | 13.9 | 13.9 | 13.9 | 13.9 | 13.9 | 14.0 | 14.0 | 14.0 | 14.0 | 14.0 | 14.1 |
| Sunrise (AM) | 5:16 | 5:15 | 5:14 | 5:13 | 5:12 | 5:11 | 5:10 | 5:09 | 5:08 | 5:07 | 5:07 | 5:06 | 5:05 | 5:04 | 5:03 | 5:03 | 5:02 | 5:01 | 5:01 | 5:00 | 4:59 | 4:59 | 4:58 | 4:58 | 4:57 | 4:57 | 4:56 | 4:56 | 4:55 | 4:55 | 4:54 |
| Sunset (PM) | 6:36 | 6:36 | 6:37 | 6:38 | 6:39 | 6:39 | 6:40 | 6:41 | 6:42 | 6:42 | 6:43 | 6:44 | 6:45 | 6:46 | 6:46 | 6:47 | 6:48 | 6:49 | 6:49 | 6:50 | 6:51 | 6:51 | 6:52 | 6:53 | 6:54 | 6:54 | 6:55 | 6:56 | 6:56 | 6:57 | 6:58 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 13.3 | 5:16 | 6:36 |
| 2 | 13.4 | 5:15 | 6:36 |
| 3 | 13.4 | 5:14 | 6:37 |
| 4 | 13.4 | 5:13 | 6:38 |
| 5 | 13.4 | 5:12 | 6:39 |
| 6 | 13.5 | 5:11 | 6:39 |
| 7 | 13.5 | 5:10 | 6:40 |
| 8 | 13.5 | 5:09 | 6:41 |
| 9 | 13.6 | 5:08 | 6:42 |
| 10 | 13.6 | 5:07 | 6:42 |
| 11 | 13.6 | 5:07 | 6:43 |
| 12 | 13.6 | 5:06 | 6:44 |
| 13 | 13.7 | 5:05 | 6:45 |
| 14 | 13.7 | 5:04 | 6:46 |
| 15 | 13.7 | 5:03 | 6:46 |
| 16 | 13.7 | 5:03 | 6:47 |
| 17 | 13.8 | 5:02 | 6:48 |
| 18 | 13.8 | 5:01 | 6:49 |
| 19 | 13.8 | 5:01 | 6:49 |
| 20 | 13.8 | 5:00 | 6:50 |
| 21 | 13.9 | 4:59 | 6:51 |
| 22 | 13.9 | 4:59 | 6:51 |
| 23 | 13.9 | 4:58 | 6:52 |
| 24 | 13.9 | 4:58 | 6:53 |
| 25 | 13.9 | 4:57 | 6:54 |
| 26 | 14.0 | 4:57 | 6:54 |
| 27 | 14.0 | 4:56 | 6:55 |
| 28 | 14.0 | 4:56 | 6:56 |
| 29 | 14.0 | 4:55 | 6:56 |
| 30 | 14.0 | 4:55 | 6:57 |
| 31 | 14.1 | 4:54 | 6:58 |
Solar energy in May
Average shortwave solar energy reaching the ground each day in May, about 5.6 kWh/m² — the sunniest month for solar.
For context, solar energy here swings from a low near 2.44 kWh/m² to a high of 5.6 kWh/m² in May across the year — May's 5.6 kWh/m² sits near the top of that range.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 5.6 | 5.6 | 5.6 | 5.6 | 5.6 | 5.6 | 5.6 | 5.6 | 5.6 | 5.6 | 5.6 | 5.6 | 5.6 | 5.6 | 5.6 | 5.6 | 5.6 | 5.7 | 5.7 | 5.7 | 5.7 | 5.7 | 5.7 | 5.7 | 5.6 | 5.6 | 5.6 | 5.6 | 5.5 | 5.5 | 5.5 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 5.6 | Bright |
| 2 | 5.6 | Bright |
| 3 | 5.6 | Bright |
| 4 | 5.6 | Bright |
| 5 | 5.6 | Bright |
| 6 | 5.6 | Bright |
| 7 | 5.6 | Bright |
| 8 | 5.6 | Bright |
| 9 | 5.6 | Bright |
| 10 | 5.6 | Bright |
| 11 | 5.6 | Bright |
| 12 | 5.6 | Bright |
| 13 | 5.6 | Bright |
| 14 | 5.6 | Bright |
| 15 | 5.6 | Bright |
| 16 | 5.6 | Bright |
| 17 | 5.6 | Bright |
| 18 | 5.7 | Bright |
| 19 | 5.7 | Bright |
| 20 | 5.7 | Bright |
| 21 | 5.7 | Bright |
| 22 | 5.7 | Bright |
| 23 | 5.7 | Bright |
| 24 | 5.7 | Bright |
| 25 | 5.6 | Bright |
| 26 | 5.6 | Bright |
| 27 | 5.6 | Bright |
| 28 | 5.6 | Bright |
| 29 | 5.5 | Bright |
| 30 | 5.5 | Bright |
| 31 | 5.5 | Bright |
Hazard calendar for Shirahama
In May, Shirahama sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Shirahama sits in the Pacific typhoon belt; the season peaks July–October.
Is May a good time to visit Shirahama?
Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
May is a reasonable time to visit Shirahama for sightseeing.
What to pack for Shirahama in May
From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In May, Shirahama sees daytime highs around 21°C and nights near 17°C. Worth packing: rain gear and sun protection. About 11 days see rain.
Sea temperature near Shirahama in May
The nearest coast averages about 21°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 28°C and coldest in February near 17°C.
It's comfortable for a long swim from May 4 to Dec 22 — about 7.7 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 18 | 17 | 18 | 19 | 21 | 23 | 26 | 28 | 27 | 25 | 23 | 20 |
| Comfort | Cool | Cool | Cool | Cool | Refreshing | Refreshing | Warm | Warm | Warm | Warm | Refreshing | Refreshing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 18 | Cool |
| Feb | 17 | Cool |
| Mar | 18 | Cool |
| Apr | 19 | Cool |
| May | 21 | Refreshing |
| Jun | 23 | Refreshing |
| Jul | 26 | Warm |
| Aug | 28 | Warm |
| Sep | 27 | Warm |
| Oct | 25 | Warm |
| Nov | 23 | Refreshing |
| Dec | 20 | Refreshing |
UV index in Shirahama in May
Clear-sky midday UV in May peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Shirahama peaks around July 11 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 3 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 3 | 4 | 6 | 7 | 9 | 10 | 11 | 9 | 10 | 6 | 4 | 3 |
| Level | Moderate | Moderate | High | Very high | Very high | Extreme | Extreme | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 3 | Moderate |
| Feb | 4 | Moderate |
| Mar | 6 | High |
| Apr | 7 | Very high |
| May | 9 | Very high |
| Jun | 10 | Extreme |
| Jul | 11 | Extreme |
| Aug | 9 | Very high |
| Sep | 10 | Very high |
| Oct | 6 | High |
| Nov | 4 | Moderate |
| Dec | 3 | Moderate |
Air quality in Shirahama in May
Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.
Air quality in Shirahama is worst in April — around 19 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (December, 10 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 12 | 15 | 19 | 19 | 17 | 14 | 10 | 10 | 10 | 10 | 11 | 10 |
| Level | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 12 | Good |
| Feb | 15 | Moderate |
| Mar | 19 | Moderate |
| Apr | 19 | Moderate |
| May | 17 | Moderate |
| Jun | 14 | Moderate |
| Jul | 10 | Good |
| Aug | 10 | Good |
| Sep | 10 | Good |
| Oct | 10 | Good |
| Nov | 11 | Good |
| Dec | 10 | Good |
Where is Shirahama?
Shirahama sits at 33.7°N, 135.3°E, 13 m above sea level, in Japan. The nearest listed city is Tanabe, 6.0 km away.
Topography around Shirahama
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Shirahama.
Within 3 km, the terrain around Shirahama has only modest variations in elevation — a maximum elevation change of 148 m around an average of 22 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 789 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,877 m.
The land around Shirahama is covered by water (57%) and trees (26%) within 3 km, water (53%) and trees (41%) within 16 km, and water (54%) and trees (43%) within 80 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
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 Shirahama (33.6833°, 135.35°, elevation 13 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).