Namioka weather in May
In May, Namioka sees average daytime highs of 18°C and overnight lows near 9°C, with 98 mm of precipitation across 12.5 wet days and about 14.2 hours of daylight. It is the 5th-warmest and 6th-wettest month of the year here.
Highs climb over the month, from about 16°C in the first days to 20°C by the end. The sky is clear or mostly clear about 29% of the time in May, and the air most often feels dry.
Daylight stretches from about 13 h 42 min at the start of May to 14 h 42 min by month's end. Set against the rest of the year, May is Namioka's 3rd-clearest and 7th-windiest month. For the whole year in context, see Namioka's year-round climate.
- Daytime high
- 18°
- 5th warmest
- Overnight low
- 9°
- 8th coldest
- Precipitation
- 98 mm
- 12.5 wet days
- Daylight
- 14 h 18 min
- 4:26 AM – 6:42 PM
- Cloud cover
- 63%
- 3rd clearest
- Wind
- 10 km/h
- 7th windiest
- Solar energy
- 5.49 kWh/m²
- Travel score
- 5.4
- out of 10
Temperature in May
Highs climb over the month, from about 16°C in the first days to 20°C by the end.
A typical May day in Namioka reaches about 18°C in the afternoon and slips back to 9°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 23°C. Set against its neighbours, May runs about 6°C warmer than April and about 4°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) | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 20 | 20 | 20 | 20 | 20 |
| Avg low (°C) | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 11 | 11 | 12 | 12 | 12 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 16 | 7 |
| 2 | 16 | 7 |
| 3 | 16 | 7 |
| 4 | 16 | 8 |
| 5 | 17 | 8 |
| 6 | 17 | 8 |
| 7 | 17 | 8 |
| 8 | 17 | 8 |
| 9 | 17 | 8 |
| 10 | 17 | 9 |
| 11 | 17 | 9 |
| 12 | 17 | 9 |
| 13 | 18 | 9 |
| 14 | 18 | 9 |
| 15 | 18 | 9 |
| 16 | 18 | 9 |
| 17 | 18 | 10 |
| 18 | 18 | 10 |
| 19 | 18 | 10 |
| 20 | 19 | 10 |
| 21 | 19 | 10 |
| 22 | 19 | 10 |
| 23 | 19 | 11 |
| 24 | 19 | 11 |
| 25 | 19 | 11 |
| 26 | 19 | 11 |
| 27 | 20 | 11 |
| 28 | 20 | 11 |
| 29 | 20 | 12 |
| 30 | 20 | 12 |
| 31 | 20 | 12 |
How May really feels in Namioka
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.
Namioka weather by month
How May compares with the rest of the year at a glance. May is the 5th-warmest and 6th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 0° / -5° | 74 | 15.9 | 20.4 | 9.4 | 0.0 |
| Feb | 1° / -4° | 71 | 14.7 | 17.1 | 10.4 | 0.0 |
| Mar | 5° / -2° | 89 | 15.4 | 11.8 | 11.7 | 0.3 |
| Apr | 12° / 4° | 87 | 13.3 | 2.3 | 13.1 | 3.1 |
| May | 18° / 9° | 98 | 12.5 | 0 | 14.2 | 5.4 |
| Jun | 22° / 14° | 98 | 11.8 | 0 | 14.9 | 6.1 |
| Jul | 25° / 19° | 149 | 14.8 | 0 | 14.6 | 5.9 |
| Aug | 27° / 20° | 169 | 15.2 | 0 | 13.6 | 5.7 |
| Sep | 23° / 16° | 148 | 13.3 | 0 | 12.3 | 6.0 |
| Oct | 17° / 9° | 119 | 13.5 | 0.1 | 10.9 | 4.8 |
| Nov | 9° / 3° | 102 | 15.5 | 4.8 | 9.7 | 1.8 |
| Dec | 3° / -2° | 97 | 17.3 | 16.8 | 9.1 | 0.0 |
Cloud cover in May
The sky is clear or mostly clear about 29% of the time in May.
Beyond those clear spells, partly cloudy skies cover about 12% of May, with mostly cloudy or overcast conditions the remaining 58%.
| 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 | 45 | 46 | 45 | 45 | 44 | 43 | 42 | 42 | 41 | 41 | 41 | 41 | 41 | 40 | 40 | 40 | 40 | 41 | 40 | 40 | 40 | 40 | 41 | 41 | 41 | 41 | 41 | 42 | 41 | 40 |
| Cloudier (%) | 53 | 55 | 54 | 55 | 55 | 56 | 57 | 58 | 58 | 59 | 59 | 59 | 59 | 59 | 60 | 60 | 60 | 60 | 59 | 60 | 60 | 60 | 60 | 59 | 59 | 59 | 59 | 59 | 58 | 59 | 60 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 47 | 53 |
| 2 | 45 | 55 |
| 3 | 46 | 54 |
| 4 | 45 | 55 |
| 5 | 45 | 55 |
| 6 | 44 | 56 |
| 7 | 43 | 57 |
| 8 | 42 | 58 |
| 9 | 42 | 58 |
| 10 | 41 | 59 |
| 11 | 41 | 59 |
| 12 | 41 | 59 |
| 13 | 41 | 59 |
| 14 | 41 | 59 |
| 15 | 40 | 60 |
| 16 | 40 | 60 |
| 17 | 40 | 60 |
| 18 | 40 | 60 |
| 19 | 41 | 59 |
| 20 | 40 | 60 |
| 21 | 40 | 60 |
| 22 | 40 | 60 |
| 23 | 40 | 60 |
| 24 | 41 | 59 |
| 25 | 41 | 59 |
| 26 | 41 | 59 |
| 27 | 41 | 59 |
| 28 | 41 | 59 |
| 29 | 42 | 58 |
| 30 | 41 | 59 |
| 31 | 40 | 60 |
Chance of precipitation in May
Namioka gets around 98 mm of rain and snow over 12.5 wet days in May. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable precipitation averages around 40% and peaks near 43% on the wettest days. The odds ease toward the end of the month.
| 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 (%) | 43 | 43 | 42 | 42 | 42 | 42 | 43 | 43 | 43 | 43 | 43 | 43 | 43 | 42 | 42 | 42 | 41 | 41 | 40 | 40 | 39 | 39 | 38 | 38 | 37 | 37 | 37 | 36 | 36 | 36 | 36 |
| Snow chance (%) | 2 | 1 | 1 | 1 | 1 | 1 | 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 |
| Rain chance (%) | Snow chance (%) | |
|---|---|---|
| 1 | 43 | 2 |
| 2 | 43 | 1 |
| 3 | 42 | 1 |
| 4 | 42 | 1 |
| 5 | 42 | 1 |
| 6 | 42 | 1 |
| 7 | 43 | 0 |
| 8 | 43 | 0 |
| 9 | 43 | 0 |
| 10 | 43 | 0 |
| 11 | 43 | 0 |
| 12 | 43 | 0 |
| 13 | 43 | 0 |
| 14 | 42 | 0 |
| 15 | 42 | 0 |
| 16 | 42 | 0 |
| 17 | 41 | 0 |
| 18 | 41 | 0 |
| 19 | 40 | 0 |
| 20 | 40 | 0 |
| 21 | 39 | 0 |
| 22 | 39 | 0 |
| 23 | 38 | 0 |
| 24 | 38 | 0 |
| 25 | 37 | 0 |
| 26 | 37 | 0 |
| 27 | 37 | 0 |
| 28 | 36 | 0 |
| 29 | 36 | 0 |
| 30 | 36 | 0 |
| 31 | 36 | 0 |
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 93% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 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 (%) | 100 | 99 | 99 | 99 | 99 | 99 | 99 | 98 | 98 | 98 | 98 | 97 | 97 | 97 | 96 | 96 | 95 | 95 | 94 | 93 | 93 | 92 | 91 | 90 | 87 | 86 | 85 | 83 | 81 | 79 | 76 |
| Comfortable (%) | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 4 | 4 | 5 | 5 | 6 | 7 | 7 | 8 | 9 | 10 | 12 | 13 | 14 | 16 | 18 | 20 | 22 |
| Humid (%) | 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 | 1 | 1 | 2 |
| Dry (%) | Comfortable (%) | Humid (%) | |
|---|---|---|---|
| 1 | 100 | 0 | 0 |
| 2 | 99 | 1 | 0 |
| 3 | 99 | 1 | 0 |
| 4 | 99 | 1 | 0 |
| 5 | 99 | 1 | 0 |
| 6 | 99 | 1 | 0 |
| 7 | 99 | 1 | 0 |
| 8 | 98 | 2 | 0 |
| 9 | 98 | 2 | 0 |
| 10 | 98 | 2 | 0 |
| 11 | 98 | 2 | 0 |
| 12 | 97 | 3 | 0 |
| 13 | 97 | 3 | 0 |
| 14 | 97 | 3 | 0 |
| 15 | 96 | 4 | 0 |
| 16 | 96 | 4 | 0 |
| 17 | 95 | 5 | 0 |
| 18 | 95 | 5 | 0 |
| 19 | 94 | 6 | 0 |
| 20 | 93 | 7 | 0 |
| 21 | 93 | 7 | 0 |
| 22 | 92 | 8 | 0 |
| 23 | 91 | 9 | 0 |
| 24 | 90 | 10 | 0 |
| 25 | 87 | 12 | 1 |
| 26 | 86 | 13 | 1 |
| 27 | 85 | 14 | 1 |
| 28 | 83 | 16 | 1 |
| 29 | 81 | 18 | 1 |
| 30 | 79 | 20 | 1 |
| 31 | 76 | 22 | 2 |
Wind in May
Winds average 10 km/h in May.
Across May, daily wind ranges from about 9 km/h on the calmest days to 11 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) | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
| 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 | 11 | calm |
| 2 | 11 | calm |
| 3 | 11 | calm |
| 4 | 11 | calm |
| 5 | 11 | calm |
| 6 | 11 | calm |
| 7 | 10 | calm |
| 8 | 10 | calm |
| 9 | 10 | calm |
| 10 | 10 | calm |
| 11 | 10 | calm |
| 12 | 10 | calm |
| 13 | 10 | calm |
| 14 | 10 | calm |
| 15 | 10 | calm |
| 16 | 10 | calm |
| 17 | 10 | calm |
| 18 | 10 | calm |
| 19 | 9 | calm |
| 20 | 9 | calm |
| 21 | 9 | calm |
| 22 | 9 | calm |
| 23 | 9 | calm |
| 24 | 9 | calm |
| 25 | 9 | calm |
| 26 | 9 | calm |
| 27 | 9 | calm |
| 28 | 9 | calm |
| 29 | 9 | calm |
| 30 | 9 | calm |
| 31 | 9 | calm |
Sunrise & sunset in May
Daylight runs from about 13 h 42 min at the start of May to 14 h 42 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 60 minutes over May. Sunrise moves from 4:43 AM to 4:15 AM, and sunset from 6:26 PM to 6:55 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) | 13.7 | 13.8 | 13.8 | 13.8 | 13.9 | 13.9 | 13.9 | 14.0 | 14.0 | 14.1 | 14.1 | 14.1 | 14.2 | 14.2 | 14.2 | 14.3 | 14.3 | 14.3 | 14.4 | 14.4 | 14.4 | 14.4 | 14.5 | 14.5 | 14.5 | 14.6 | 14.6 | 14.6 | 14.6 | 14.6 | 14.7 |
| Sunrise (AM) | 4:43 | 4:42 | 4:41 | 4:40 | 4:38 | 4:37 | 4:36 | 4:35 | 4:33 | 4:32 | 4:31 | 4:30 | 4:29 | 4:28 | 4:27 | 4:26 | 4:25 | 4:24 | 4:23 | 4:22 | 4:22 | 4:21 | 4:20 | 4:19 | 4:19 | 4:18 | 4:17 | 4:17 | 4:16 | 4:15 | 4:15 |
| Sunset (PM) | 6:26 | 6:27 | 6:28 | 6:29 | 6:30 | 6:32 | 6:33 | 6:34 | 6:35 | 6:36 | 6:37 | 6:38 | 6:39 | 6:40 | 6:41 | 6:42 | 6:43 | 6:44 | 6:45 | 6:46 | 6:47 | 6:47 | 6:48 | 6:49 | 6:50 | 6:51 | 6:52 | 6:53 | 6:54 | 6:54 | 6:55 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 13.7 | 4:43 | 6:26 |
| 2 | 13.8 | 4:42 | 6:27 |
| 3 | 13.8 | 4:41 | 6:28 |
| 4 | 13.8 | 4:40 | 6:29 |
| 5 | 13.9 | 4:38 | 6:30 |
| 6 | 13.9 | 4:37 | 6:32 |
| 7 | 13.9 | 4:36 | 6:33 |
| 8 | 14.0 | 4:35 | 6:34 |
| 9 | 14.0 | 4:33 | 6:35 |
| 10 | 14.1 | 4:32 | 6:36 |
| 11 | 14.1 | 4:31 | 6:37 |
| 12 | 14.1 | 4:30 | 6:38 |
| 13 | 14.2 | 4:29 | 6:39 |
| 14 | 14.2 | 4:28 | 6:40 |
| 15 | 14.2 | 4:27 | 6:41 |
| 16 | 14.3 | 4:26 | 6:42 |
| 17 | 14.3 | 4:25 | 6:43 |
| 18 | 14.3 | 4:24 | 6:44 |
| 19 | 14.4 | 4:23 | 6:45 |
| 20 | 14.4 | 4:22 | 6:46 |
| 21 | 14.4 | 4:22 | 6:47 |
| 22 | 14.4 | 4:21 | 6:47 |
| 23 | 14.5 | 4:20 | 6:48 |
| 24 | 14.5 | 4:19 | 6:49 |
| 25 | 14.5 | 4:19 | 6:50 |
| 26 | 14.6 | 4:18 | 6:51 |
| 27 | 14.6 | 4:17 | 6:52 |
| 28 | 14.6 | 4:17 | 6:53 |
| 29 | 14.6 | 4:16 | 6:54 |
| 30 | 14.6 | 4:15 | 6:54 |
| 31 | 14.7 | 4:15 | 6:55 |
Solar energy in May
Average shortwave solar energy reaching the ground each day in May, about 5.49 kWh/m² — the sunniest month for solar.
For context, solar energy here swings from a low near 1.71 kWh/m² to a high of 5.49 kWh/m² in May across the year — May's 5.49 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) | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.6 | 5.6 | 5.6 | 5.7 | 5.7 | 5.7 | 5.7 | 5.7 | 5.7 |
| 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 | 5.4 | Bright |
| 2 | 5.4 | Bright |
| 3 | 5.4 | Bright |
| 4 | 5.4 | Bright |
| 5 | 5.4 | Bright |
| 6 | 5.4 | Bright |
| 7 | 5.4 | Bright |
| 8 | 5.4 | Bright |
| 9 | 5.4 | Bright |
| 10 | 5.4 | Bright |
| 11 | 5.4 | Bright |
| 12 | 5.4 | Bright |
| 13 | 5.4 | Bright |
| 14 | 5.4 | Bright |
| 15 | 5.4 | Bright |
| 16 | 5.4 | Bright |
| 17 | 5.4 | Bright |
| 18 | 5.5 | Bright |
| 19 | 5.5 | Bright |
| 20 | 5.5 | Bright |
| 21 | 5.5 | Bright |
| 22 | 5.5 | Bright |
| 23 | 5.6 | Bright |
| 24 | 5.6 | Bright |
| 25 | 5.6 | Bright |
| 26 | 5.7 | Bright |
| 27 | 5.7 | Bright |
| 28 | 5.7 | Bright |
| 29 | 5.7 | Bright |
| 30 | 5.7 | Bright |
| 31 | 5.7 | Bright |
Hazard calendar for Namioka
In May, Namioka sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Namioka sits in the Pacific typhoon belt; the season peaks July–October.
Is May a good time to visit Namioka?
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 Namioka for sightseeing.
What to pack for Namioka in May
From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In May, Namioka sees daytime highs around 18°C and nights near 9°C. Worth packing: rain gear and sun protection. About 13 days see rain.
Sea temperature near Namioka in May
The nearest coast averages about 11°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 30 km away) is warmest in August at about 23°C and coldest in March near 8°C.
It's comfortable for a long swim from Jul 24 to Oct 7 — about 2.5 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 10 | 8 | 8 | 8 | 11 | 15 | 19 | 23 | 22 | 19 | 15 | 12 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Refreshing | Refreshing | Cool | Cool | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 10 | Bracing |
| Feb | 8 | Bracing |
| Mar | 8 | Bracing |
| Apr | 8 | Bracing |
| May | 11 | Bracing |
| Jun | 15 | Cool |
| Jul | 19 | Cool |
| Aug | 23 | Refreshing |
| Sep | 22 | Refreshing |
| Oct | 19 | Cool |
| Nov | 15 | Cool |
| Dec | 12 | Bracing |
UV index in Namioka in May
Clear-sky midday UV in May peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Namioka peaks around August 19 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 2 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 2 | 3 | 6 | 8 | 8 | 5 | 9 | 7 | 4 | 2 | 2 |
| Level | Low | Moderate | Moderate | High | Very high | Very high | Moderate | Very high | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 2 | Moderate |
| Mar | 3 | Moderate |
| Apr | 6 | High |
| May | 8 | Very high |
| Jun | 8 | Very high |
| Jul | 5 | Moderate |
| Aug | 9 | Very high |
| Sep | 7 | High |
| Oct | 4 | Moderate |
| Nov | 2 | Moderate |
| Dec | 2 | Low |
Air quality in Namioka 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 Namioka is worst in April — around 20 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (December, 8 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) | 9 | 13 | 18 | 20 | 18 | 13 | 12 | 10 | 10 | 10 | 9 | 8 |
| Level | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 9 | Good |
| Feb | 13 | Moderate |
| Mar | 18 | Moderate |
| Apr | 20 | Moderate |
| May | 18 | Moderate |
| Jun | 13 | Moderate |
| Jul | 12 | Good |
| Aug | 10 | Good |
| Sep | 10 | Good |
| Oct | 10 | Good |
| Nov | 9 | Good |
| Dec | 8 | Good |
Where is Namioka?
Namioka sits at 40.7°N, 140.6°E, 28 m above sea level, in Japan. The nearest listed city is Kuroishi, 7.0 km away.
Topography around Namioka
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Namioka.
Within 3 km, the terrain around Namioka has only modest variations in elevation — a maximum elevation change of 154 m around an average of 36 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 749 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,585 m.
The land around Namioka is covered by cropland (45%) and trees (28%) within 3 km, trees (56%) and cropland (28%) within 16 km, and trees (54%) and water (37%) 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 Namioka (40.7107°, 140.5905°, elevation 28 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).