Matsubase weather in May
In May, Matsubase sees average daytime highs of 22°C and overnight lows near 15°C, with 178 mm of rain across 12 wet days and about 13.7 hours of daylight. It is the 6th-warmest and 3rd-wettest month of the year here.
Highs climb over the month, from about 21°C in the first days to 24°C by the end. The sky is clear or mostly clear about 27% of the time in May, and the air most often feels dry.
Daylight stretches from about 13 h 18 min at the start of May to 14 hours by month's end. Set against the rest of the year, May is Matsubase's 10th-clearest and 9th-windiest month. For the whole year in context, see Matsubase's year-round climate.
- Daytime high
- 22°
- 6th warmest
- Overnight low
- 15°
- 8th coldest
- Rainfall
- 178 mm
- 12 wet days
- Daylight
- 13 h 42 min
- 5:23 AM – 7:04 PM
- Cloud cover
- 66%
- 10th clearest
- Wind
- 8 km/h
- 9th windiest
- Solar energy
- 5.15 kWh/m²
- Travel score
- 6.4
- out of 10
Temperature in May
Highs climb over the month, from about 21°C in the first days to 24°C by the end.
A typical May day in Matsubase reaches about 22°C in the afternoon and slips back to 15°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 25°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) | 21 | 21 | 21 | 21 | 21 | 21 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 24 |
| Avg low (°C) | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 17 | 17 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 21 | 13 |
| 2 | 21 | 14 |
| 3 | 21 | 14 |
| 4 | 21 | 14 |
| 5 | 21 | 14 |
| 6 | 21 | 14 |
| 7 | 22 | 14 |
| 8 | 22 | 14 |
| 9 | 22 | 15 |
| 10 | 22 | 15 |
| 11 | 22 | 15 |
| 12 | 22 | 15 |
| 13 | 22 | 15 |
| 14 | 22 | 15 |
| 15 | 22 | 15 |
| 16 | 23 | 15 |
| 17 | 23 | 15 |
| 18 | 23 | 16 |
| 19 | 23 | 16 |
| 20 | 23 | 16 |
| 21 | 23 | 16 |
| 22 | 23 | 16 |
| 23 | 23 | 16 |
| 24 | 23 | 16 |
| 25 | 23 | 16 |
| 26 | 23 | 17 |
| 27 | 24 | 17 |
| 28 | 24 | 17 |
| 29 | 24 | 17 |
| 30 | 24 | 17 |
| 31 | 24 | 17 |
How May really feels in Matsubase
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.
Matsubase weather by month
How May compares with the rest of the year at a glance. May is the 6th-warmest and 3rd-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 9° / 3° | 79 | 10.6 | 1.8 | 10.1 | 1.8 |
| Feb | 10° / 4° | 96 | 10.2 | 1.2 | 10.8 | 2.3 |
| Mar | 14° / 7° | 142 | 13.1 | 0.2 | 11.8 | 3.8 |
| Apr | 18° / 11° | 154 | 12.1 | 0 | 12.8 | 5.5 |
| May | 22° / 15° | 178 | 12 | 0 | 13.7 | 6.4 |
| Jun | 25° / 20° | 403 | 17 | 0 | 14.1 | 5.4 |
| Jul | 29° / 23° | 301 | 16.3 | 0 | 13.9 | 4.8 |
| Aug | 30° / 24° | 135 | 13 | 0 | 13.2 | 4.7 |
| Sep | 27° / 21° | 156 | 11.8 | 0 | 12.2 | 6.1 |
| Oct | 23° / 15° | 98 | 8.3 | 0 | 11.2 | 7.1 |
| Nov | 17° / 10° | 93 | 8.8 | 0 | 10.3 | 5.6 |
| Dec | 11° / 5° | 84 | 10 | 0.9 | 9.9 | 2.9 |
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 11% of May, with mostly cloudy or overcast conditions the remaining 62%. 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 (%) | 43 | 43 | 42 | 42 | 41 | 41 | 40 | 39 | 38 | 39 | 39 | 38 | 39 | 38 | 38 | 38 | 37 | 37 | 37 | 37 | 37 | 37 | 36 | 36 | 35 | 36 | 35 | 35 | 34 | 33 | 33 |
| Cloudier (%) | 57 | 57 | 58 | 58 | 59 | 59 | 60 | 61 | 62 | 61 | 61 | 62 | 61 | 62 | 62 | 62 | 63 | 63 | 63 | 63 | 63 | 63 | 64 | 64 | 65 | 64 | 65 | 65 | 66 | 67 | 67 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 43 | 57 |
| 2 | 43 | 57 |
| 3 | 42 | 58 |
| 4 | 42 | 58 |
| 5 | 41 | 59 |
| 6 | 41 | 59 |
| 7 | 40 | 60 |
| 8 | 39 | 61 |
| 9 | 38 | 62 |
| 10 | 39 | 61 |
| 11 | 39 | 61 |
| 12 | 38 | 62 |
| 13 | 39 | 61 |
| 14 | 38 | 62 |
| 15 | 38 | 62 |
| 16 | 38 | 62 |
| 17 | 37 | 63 |
| 18 | 37 | 63 |
| 19 | 37 | 63 |
| 20 | 37 | 63 |
| 21 | 37 | 63 |
| 22 | 37 | 63 |
| 23 | 36 | 64 |
| 24 | 36 | 64 |
| 25 | 35 | 65 |
| 26 | 36 | 64 |
| 27 | 35 | 65 |
| 28 | 35 | 65 |
| 29 | 34 | 66 |
| 30 | 33 | 67 |
| 31 | 33 | 67 |
Chance of precipitation in May
Matsubase gets around 178 mm of rain over 12 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 38% and peaks near 40% 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 (%) | 39 | 39 | 39 | 39 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 39 | 39 | 38 | 38 | 38 | 37 | 37 | 37 | 37 | 37 | 36 | 36 | 36 | 36 | 36 | 36 | 37 | 37 | 37 | 38 |
| Rain chance (%) | |
|---|---|
| 1 | 39 |
| 2 | 39 |
| 3 | 39 |
| 4 | 39 |
| 5 | 40 |
| 6 | 40 |
| 7 | 40 |
| 8 | 40 |
| 9 | 40 |
| 10 | 40 |
| 11 | 40 |
| 12 | 39 |
| 13 | 39 |
| 14 | 38 |
| 15 | 38 |
| 16 | 38 |
| 17 | 37 |
| 18 | 37 |
| 19 | 37 |
| 20 | 37 |
| 21 | 37 |
| 22 | 36 |
| 23 | 36 |
| 24 | 36 |
| 25 | 36 |
| 26 | 36 |
| 27 | 36 |
| 28 | 37 |
| 29 | 37 |
| 30 | 37 |
| 31 | 38 |
Humidity in May
Most of May feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, May lands in the dry band about 37% of days. Sticky, muggy-or-worse air turns up on roughly 7% 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 (%) | 59 | 57 | 57 | 54 | 53 | 50 | 49 | 48 | 47 | 45 | 44 | 43 | 42 | 41 | 39 | 38 | 36 | 35 | 33 | 32 | 30 | 29 | 27 | 25 | 24 | 22 | 20 | 19 | 17 | 16 | 14 |
| Comfortable (%) | 25 | 26 | 26 | 27 | 28 | 29 | 30 | 31 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 40 | 41 | 41 | 41 | 41 | 41 | 41 | 40 | 40 | 39 | 38 | 36 | 35 |
| Humid (%) | 13 | 14 | 14 | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 18 | 18 | 19 | 20 | 21 | 23 | 24 | 25 | 27 | 28 | 30 | 32 | 33 | 35 | 36 |
| Muggy (%) | 3 | 3 | 3 | 4 | 4 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 9 | 9 | 10 | 11 | 12 | 13 | 14 |
| 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 | 0 | 0 | 0 | 1 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| 1 | 59 | 25 | 13 | 3 | 0 |
| 2 | 57 | 26 | 14 | 3 | 0 |
| 3 | 57 | 26 | 14 | 3 | 0 |
| 4 | 54 | 27 | 15 | 4 | 0 |
| 5 | 53 | 28 | 15 | 4 | 0 |
| 6 | 50 | 29 | 16 | 5 | 0 |
| 7 | 49 | 30 | 16 | 5 | 0 |
| 8 | 48 | 31 | 16 | 5 | 0 |
| 9 | 47 | 31 | 16 | 5 | 0 |
| 10 | 45 | 32 | 16 | 6 | 0 |
| 11 | 44 | 33 | 16 | 6 | 0 |
| 12 | 43 | 34 | 16 | 6 | 0 |
| 13 | 42 | 35 | 17 | 6 | 0 |
| 14 | 41 | 36 | 17 | 7 | 0 |
| 15 | 39 | 37 | 17 | 7 | 0 |
| 16 | 38 | 38 | 17 | 7 | 0 |
| 17 | 36 | 39 | 18 | 7 | 0 |
| 18 | 35 | 40 | 18 | 7 | 0 |
| 19 | 33 | 40 | 19 | 7 | 0 |
| 20 | 32 | 41 | 20 | 7 | 0 |
| 21 | 30 | 41 | 21 | 7 | 0 |
| 22 | 29 | 41 | 23 | 8 | 0 |
| 23 | 27 | 41 | 24 | 8 | 0 |
| 24 | 25 | 41 | 25 | 8 | 0 |
| 25 | 24 | 41 | 27 | 9 | 0 |
| 26 | 22 | 40 | 28 | 9 | 0 |
| 27 | 20 | 40 | 30 | 10 | 0 |
| 28 | 19 | 39 | 32 | 11 | 0 |
| 29 | 17 | 38 | 33 | 12 | 0 |
| 30 | 16 | 36 | 35 | 13 | 0 |
| 31 | 14 | 35 | 36 | 14 | 1 |
Wind in May
Winds average 8 km/h in May.
Across May, daily wind ranges from about 7 km/h on the calmest days to 8 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) | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 8 | calm |
| 2 | 8 | calm |
| 3 | 8 | calm |
| 4 | 8 | calm |
| 5 | 8 | calm |
| 6 | 8 | calm |
| 7 | 8 | calm |
| 8 | 8 | calm |
| 9 | 8 | calm |
| 10 | 8 | calm |
| 11 | 8 | calm |
| 12 | 8 | calm |
| 13 | 8 | calm |
| 14 | 8 | calm |
| 15 | 8 | calm |
| 16 | 8 | calm |
| 17 | 7 | calm |
| 18 | 7 | calm |
| 19 | 7 | calm |
| 20 | 7 | calm |
| 21 | 7 | calm |
| 22 | 7 | calm |
| 23 | 7 | calm |
| 24 | 7 | calm |
| 25 | 7 | calm |
| 26 | 7 | calm |
| 27 | 7 | calm |
| 28 | 7 | calm |
| 29 | 7 | calm |
| 30 | 7 | calm |
| 31 | 7 | calm |
Sunrise & sunset in May
Daylight runs from about 13 h 18 min at the start of May to 14 hours by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 42 minutes over May. Sunrise moves from 5:36 AM to 5:16 AM, and sunset from 6:53 PM to 7:14 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 | 13.3 | 13.3 | 13.4 | 13.4 | 13.4 | 13.4 | 13.5 | 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 | 13.8 | 13.9 | 13.9 | 13.9 | 13.9 | 13.9 | 14.0 | 14.0 |
| Sunrise (AM) | 5:36 | 5:35 | 5:34 | 5:33 | 5:32 | 5:32 | 5:31 | 5:30 | 5:29 | 5:28 | 5:27 | 5:26 | 5:26 | 5:25 | 5:24 | 5:23 | 5:23 | 5:22 | 5:21 | 5:21 | 5:20 | 5:20 | 5:19 | 5:19 | 5:18 | 5:18 | 5:17 | 5:17 | 5:16 | 5:16 | 5:16 |
| Sunset (PM) | 6:53 | 6:53 | 6:54 | 6:55 | 6:56 | 6:56 | 6:57 | 6:58 | 6:59 | 6:59 | 7:00 | 7:01 | 7:02 | 7:02 | 7:03 | 7:04 | 7:04 | 7:05 | 7:06 | 7:07 | 7:07 | 7:08 | 7:09 | 7:09 | 7:10 | 7:11 | 7:11 | 7:12 | 7:13 | 7:13 | 7:14 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 13.3 | 5:36 | 6:53 |
| 2 | 13.3 | 5:35 | 6:53 |
| 3 | 13.3 | 5:34 | 6:54 |
| 4 | 13.4 | 5:33 | 6:55 |
| 5 | 13.4 | 5:32 | 6:56 |
| 6 | 13.4 | 5:32 | 6:56 |
| 7 | 13.4 | 5:31 | 6:57 |
| 8 | 13.5 | 5:30 | 6:58 |
| 9 | 13.5 | 5:29 | 6:59 |
| 10 | 13.5 | 5:28 | 6:59 |
| 11 | 13.5 | 5:27 | 7:00 |
| 12 | 13.6 | 5:26 | 7:01 |
| 13 | 13.6 | 5:26 | 7:02 |
| 14 | 13.6 | 5:25 | 7:02 |
| 15 | 13.6 | 5:24 | 7:03 |
| 16 | 13.7 | 5:23 | 7:04 |
| 17 | 13.7 | 5:23 | 7:04 |
| 18 | 13.7 | 5:22 | 7:05 |
| 19 | 13.7 | 5:21 | 7:06 |
| 20 | 13.8 | 5:21 | 7:07 |
| 21 | 13.8 | 5:20 | 7:07 |
| 22 | 13.8 | 5:20 | 7:08 |
| 23 | 13.8 | 5:19 | 7:09 |
| 24 | 13.8 | 5:19 | 7:09 |
| 25 | 13.9 | 5:18 | 7:10 |
| 26 | 13.9 | 5:18 | 7:11 |
| 27 | 13.9 | 5:17 | 7:11 |
| 28 | 13.9 | 5:17 | 7:12 |
| 29 | 13.9 | 5:16 | 7:13 |
| 30 | 14.0 | 5:16 | 7:13 |
| 31 | 14.0 | 5:16 | 7:14 |
Solar energy in May
Average shortwave solar energy reaching the ground each day in May, about 5.15 kWh/m² — the sunniest month for solar.
For context, solar energy here swings from a low near 2.31 kWh/m² to a high of 5.15 kWh/m² in May across the year — May's 5.15 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) | 5.1 | 5.1 | 5.1 | 5.1 | 5.1 | 5.1 | 5.1 | 5.1 | 5.1 | 5.1 | 5.1 | 5.1 | 5.1 | 5.2 | 5.2 | 5.2 | 5.2 | 5.2 | 5.2 | 5.2 | 5.2 | 5.2 | 5.2 | 5.2 | 5.2 | 5.2 | 5.1 | 5.1 | 5.1 | 5.0 | 5.0 |
| 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 | 5.1 | Bright |
| 2 | 5.1 | Bright |
| 3 | 5.1 | Bright |
| 4 | 5.1 | Bright |
| 5 | 5.1 | Bright |
| 6 | 5.1 | Bright |
| 7 | 5.1 | Bright |
| 8 | 5.1 | Bright |
| 9 | 5.1 | Bright |
| 10 | 5.1 | Bright |
| 11 | 5.1 | Bright |
| 12 | 5.1 | Bright |
| 13 | 5.1 | Bright |
| 14 | 5.2 | Bright |
| 15 | 5.2 | Bright |
| 16 | 5.2 | Bright |
| 17 | 5.2 | Bright |
| 18 | 5.2 | Bright |
| 19 | 5.2 | Bright |
| 20 | 5.2 | Bright |
| 21 | 5.2 | Bright |
| 22 | 5.2 | Bright |
| 23 | 5.2 | Bright |
| 24 | 5.2 | Bright |
| 25 | 5.2 | Bright |
| 26 | 5.2 | Bright |
| 27 | 5.1 | Bright |
| 28 | 5.1 | Bright |
| 29 | 5.1 | Bright |
| 30 | 5.0 | Bright |
| 31 | 5.0 | Bright |
Hazard calendar for Matsubase
In May, Matsubase sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Matsubase sits in the Pacific typhoon belt; the season peaks July–October.
Matsubase's rainy season runs June–July, when most of the year's rain falls.
Is May a good time to visit Matsubase?
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 Matsubase for sightseeing.
What to pack for Matsubase in May
From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In May, Matsubase sees daytime highs around 22°C and nights near 15°C. Worth packing: light clothes, rain gear and sun protection. About 12 days see rain.
Sea temperature near Matsubase in May
The nearest coast averages about 19°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 25 km away) is warmest in August at about 27°C and coldest in February near 13°C.
It's comfortable for a long swim from May 27 to Nov 13 — about 5.6 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 14 | 13 | 14 | 16 | 19 | 22 | 25 | 27 | 26 | 23 | 20 | 17 |
| Comfort | Bracing | Bracing | Bracing | Cool | Cool | Refreshing | Warm | Warm | Warm | Refreshing | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 14 | Bracing |
| Feb | 13 | Bracing |
| Mar | 14 | Bracing |
| Apr | 16 | Cool |
| May | 19 | Cool |
| Jun | 22 | Refreshing |
| Jul | 25 | Warm |
| Aug | 27 | Warm |
| Sep | 26 | Warm |
| Oct | 23 | Refreshing |
| Nov | 20 | Cool |
| Dec | 17 | Cool |
UV index in Matsubase in May
Clear-sky midday UV in May peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Matsubase peaks around June 22 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 — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 3 | 5 | 6 | 8 | 8 | 10 | 10 | 9 | 10 | 7 | 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 | 5 | Moderate |
| Mar | 6 | High |
| Apr | 8 | Very high |
| May | 8 | Very high |
| Jun | 10 | Extreme |
| Jul | 10 | Extreme |
| Aug | 9 | Very high |
| Sep | 10 | Very high |
| Oct | 7 | High |
| Nov | 4 | Moderate |
| Dec | 3 | Moderate |
Air quality in Matsubase 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 Matsubase is worst in March — around 25 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (July, 13 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) | 18 | 20 | 25 | 25 | 23 | 19 | 13 | 15 | 14 | 14 | 16 | 15 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 18 | Moderate |
| Feb | 20 | Moderate |
| Mar | 25 | Moderate |
| Apr | 25 | Moderate |
| May | 23 | Moderate |
| Jun | 19 | Moderate |
| Jul | 13 | Moderate |
| Aug | 15 | Moderate |
| Sep | 14 | Moderate |
| Oct | 14 | Moderate |
| Nov | 16 | Moderate |
| Dec | 15 | Moderate |
Where is Matsubase?
Matsubase sits at 32.6°N, 130.7°E, 4 m above sea level, in Japan. The nearest listed city is Uki, 3.0 km away.
Topography around Matsubase
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Matsubase.
Within 3 km, the terrain around Matsubase has only modest variations in elevation — a maximum elevation change of 169 m around an average of 17 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 861 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,757 m.
The land around Matsubase is covered by cropland (30%), artificial surfaces (30%) and trees (27%) within 3 km, trees (38%), cropland (23%) and water (20%) within 16 km, and trees (64%) and water (20%) 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 Matsubase (32.65°, 130.6667°, elevation 4 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).