Oga weather in May
In May, Oga sees average daytime highs of 14°C and overnight lows near 12°C, with 117 mm of rain across 12.6 wet days and about 14.2 hours of daylight. It is the 6th-warmest and 10th-wettest month of the year here.
Highs climb over the month, from about 12°C in the first days to 17°C by the end. The sky is clear or mostly clear about 31% 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 36 min by month's end. Set against the rest of the year, May is Oga's 4th-clearest and 9th-windiest month. For the whole year in context, see Oga's year-round climate.
- Daytime high
- 14°
- 6th warmest
- Overnight low
- 12°
- 7th coldest
- Rainfall
- 117 mm
- 12.6 wet days
- Daylight
- 14 h 12 min
- 4:31 AM – 6:43 PM
- Cloud cover
- 61%
- 4th clearest
- Wind
- 19 km/h
- 9th windiest
- Solar energy
- 5.73 kWh/m²
- Travel score
- 4.1
- out of 10
Oga is city in Akita Prefecture, Japan.
- Density
- 104/km²
- people per km²
- Founded
- 2005
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in May
Highs climb over the month, from about 12°C in the first days to 17°C by the end.
A typical May day in Oga reaches about 14°C in the afternoon and slips back to 12°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 17°C. Set against its neighbours, May runs about 5°C warmer than April and about 5°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) | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 15 | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 17 |
| Avg low (°C) | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 11 | 11 | 11 | 11 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 15 | 15 | 15 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 12 | 9 |
| 2 | 12 | 10 |
| 3 | 12 | 10 |
| 4 | 12 | 10 |
| 5 | 13 | 10 |
| 6 | 13 | 10 |
| 7 | 13 | 10 |
| 8 | 13 | 11 |
| 9 | 13 | 11 |
| 10 | 13 | 11 |
| 11 | 13 | 11 |
| 12 | 14 | 11 |
| 13 | 14 | 11 |
| 14 | 14 | 12 |
| 15 | 14 | 12 |
| 16 | 14 | 12 |
| 17 | 15 | 12 |
| 18 | 15 | 12 |
| 19 | 15 | 13 |
| 20 | 15 | 13 |
| 21 | 15 | 13 |
| 22 | 16 | 13 |
| 23 | 16 | 13 |
| 24 | 16 | 14 |
| 25 | 16 | 14 |
| 26 | 16 | 14 |
| 27 | 16 | 14 |
| 28 | 17 | 14 |
| 29 | 17 | 15 |
| 30 | 17 | 15 |
| 31 | 17 | 15 |
How May really feels in Oga
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.
Oga weather by month
How May compares with the rest of the year at a glance. May is the 6th-warmest and 10th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 4° / 1° | 169 | 25.4 | 17.9 | 9.5 | 0.0 |
| Feb | 4° / 1° | 119 | 20.5 | 14.2 | 10.4 | 0.0 |
| Mar | 6° / 3° | 108 | 17.2 | 6.7 | 11.7 | 0.5 |
| Apr | 10° / 7° | 98 | 12.7 | 0.3 | 13 | 2.1 |
| May | 14° / 12° | 117 | 12.6 | 0 | 14.2 | 4.1 |
| Jun | 19° / 17° | 120 | 11 | 0 | 14.8 | 5.9 |
| Jul | 23° / 21° | 190 | 14.4 | 0 | 14.5 | 6.0 |
| Aug | 26° / 23° | 178 | 14.1 | 0 | 13.6 | 6.2 |
| Sep | 23° / 21° | 180 | 14 | 0 | 12.3 | 6.0 |
| Oct | 18° / 15° | 166 | 15.3 | 0 | 10.9 | 5.0 |
| Nov | 12° / 9° | 174 | 19.6 | 1.2 | 9.8 | 2.5 |
| Dec | 7° / 4° | 203 | 24.8 | 10.2 | 9.2 | 0.6 |
Cloud cover in May
The sky is clear or mostly clear about 31% 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 56%.
| 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 (%) | 45 | 45 | 45 | 44 | 44 | 43 | 43 | 42 | 42 | 41 | 42 | 42 | 42 | 41 | 42 | 42 | 42 | 42 | 42 | 42 | 44 | 44 | 45 | 45 | 45 | 46 | 47 | 48 | 48 | 49 | 49 |
| Cloudier (%) | 55 | 55 | 55 | 56 | 56 | 57 | 57 | 58 | 58 | 59 | 58 | 58 | 58 | 59 | 58 | 58 | 58 | 58 | 58 | 58 | 56 | 56 | 55 | 55 | 55 | 54 | 53 | 52 | 52 | 51 | 51 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 45 | 55 |
| 2 | 45 | 55 |
| 3 | 45 | 55 |
| 4 | 44 | 56 |
| 5 | 44 | 56 |
| 6 | 43 | 57 |
| 7 | 43 | 57 |
| 8 | 42 | 58 |
| 9 | 42 | 58 |
| 10 | 41 | 59 |
| 11 | 42 | 58 |
| 12 | 42 | 58 |
| 13 | 42 | 58 |
| 14 | 41 | 59 |
| 15 | 42 | 58 |
| 16 | 42 | 58 |
| 17 | 42 | 58 |
| 18 | 42 | 58 |
| 19 | 42 | 58 |
| 20 | 42 | 58 |
| 21 | 44 | 56 |
| 22 | 44 | 56 |
| 23 | 45 | 55 |
| 24 | 45 | 55 |
| 25 | 45 | 55 |
| 26 | 46 | 54 |
| 27 | 47 | 53 |
| 28 | 48 | 52 |
| 29 | 48 | 52 |
| 30 | 49 | 51 |
| 31 | 49 | 51 |
Chance of precipitation in May
Oga gets around 117 mm of rain over 12.6 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 40% and peaks near 43% 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 (%) | 41 | 41 | 41 | 41 | 41 | 41 | 42 | 42 | 42 | 43 | 43 | 43 | 43 | 43 | 43 | 43 | 43 | 42 | 42 | 41 | 41 | 40 | 39 | 38 | 38 | 37 | 36 | 36 | 35 | 35 | 35 |
| Rain chance (%) | |
|---|---|
| 1 | 41 |
| 2 | 41 |
| 3 | 41 |
| 4 | 41 |
| 5 | 41 |
| 6 | 41 |
| 7 | 42 |
| 8 | 42 |
| 9 | 42 |
| 10 | 43 |
| 11 | 43 |
| 12 | 43 |
| 13 | 43 |
| 14 | 43 |
| 15 | 43 |
| 16 | 43 |
| 17 | 43 |
| 18 | 42 |
| 19 | 42 |
| 20 | 41 |
| 21 | 41 |
| 22 | 40 |
| 23 | 39 |
| 24 | 38 |
| 25 | 38 |
| 26 | 37 |
| 27 | 36 |
| 28 | 36 |
| 29 | 35 |
| 30 | 35 |
| 31 | 35 |
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 80% 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 (%) | 99 | 99 | 99 | 99 | 99 | 98 | 98 | 98 | 97 | 97 | 96 | 95 | 93 | 92 | 90 | 88 | 85 | 83 | 80 | 76 | 73 | 70 | 66 | 63 | 60 | 56 | 53 | 50 | 47 | 44 | 41 |
| Comfortable (%) | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 3 | 3 | 4 | 5 | 7 | 8 | 10 | 12 | 15 | 17 | 20 | 23 | 26 | 29 | 32 | 35 | 37 | 40 | 42 | 44 | 46 | 48 | 49 |
| Humid (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 2 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 10 |
| Dry (%) | Comfortable (%) | Humid (%) | |
|---|---|---|---|
| 1 | 99 | 1 | 0 |
| 2 | 99 | 1 | 0 |
| 3 | 99 | 1 | 0 |
| 4 | 99 | 1 | 0 |
| 5 | 99 | 1 | 0 |
| 6 | 98 | 2 | 0 |
| 7 | 98 | 2 | 0 |
| 8 | 98 | 2 | 0 |
| 9 | 97 | 3 | 0 |
| 10 | 97 | 3 | 0 |
| 11 | 96 | 4 | 0 |
| 12 | 95 | 5 | 0 |
| 13 | 93 | 7 | 0 |
| 14 | 92 | 8 | 0 |
| 15 | 90 | 10 | 0 |
| 16 | 88 | 12 | 0 |
| 17 | 85 | 15 | 0 |
| 18 | 83 | 17 | 0 |
| 19 | 80 | 20 | 0 |
| 20 | 76 | 23 | 1 |
| 21 | 73 | 26 | 1 |
| 22 | 70 | 29 | 1 |
| 23 | 66 | 32 | 2 |
| 24 | 63 | 35 | 2 |
| 25 | 60 | 37 | 3 |
| 26 | 56 | 40 | 4 |
| 27 | 53 | 42 | 5 |
| 28 | 50 | 44 | 6 |
| 29 | 47 | 46 | 7 |
| 30 | 44 | 48 | 8 |
| 31 | 41 | 49 | 10 |
Wind in May
Winds average 19 km/h in May.
Across May, daily wind ranges from about 17 km/h on the calmest days to 21 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) | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 19 | 19 | 19 | 19 | 19 | 19 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 17 |
| Feels | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | 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 | 21 | breezy |
| 2 | 21 | breezy |
| 3 | 21 | breezy |
| 4 | 21 | breezy |
| 5 | 20 | breezy |
| 6 | 20 | breezy |
| 7 | 20 | breezy |
| 8 | 20 | breezy |
| 9 | 20 | light breeze |
| 10 | 20 | light breeze |
| 11 | 20 | light breeze |
| 12 | 20 | light breeze |
| 13 | 19 | light breeze |
| 14 | 19 | light breeze |
| 15 | 19 | light breeze |
| 16 | 19 | light breeze |
| 17 | 19 | light breeze |
| 18 | 19 | light breeze |
| 19 | 18 | light breeze |
| 20 | 18 | light breeze |
| 21 | 18 | light breeze |
| 22 | 18 | light breeze |
| 23 | 18 | light breeze |
| 24 | 18 | light breeze |
| 25 | 18 | light breeze |
| 26 | 18 | light breeze |
| 27 | 17 | light breeze |
| 28 | 17 | light breeze |
| 29 | 17 | light breeze |
| 30 | 17 | light breeze |
| 31 | 17 | light breeze |
Sunrise & sunset in May
Daylight runs from about 13 h 42 min at the start of May to 14 h 36 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 54 minutes over May. Sunrise moves from 4:48 AM to 4:20 AM, and sunset from 6:28 PM to 6:56 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 | 13.7 | 13.7 | 13.8 | 13.8 | 13.9 | 13.9 | 13.9 | 14.0 | 14.0 | 14.0 | 14.1 | 14.1 | 14.1 | 14.2 | 14.2 | 14.2 | 14.3 | 14.3 | 14.3 | 14.3 | 14.4 | 14.4 | 14.4 | 14.4 | 14.5 | 14.5 | 14.5 | 14.5 | 14.6 | 14.6 |
| Sunrise (AM) | 4:48 | 4:47 | 4:45 | 4:44 | 4:43 | 4:42 | 4:41 | 4:39 | 4:38 | 4:37 | 4:36 | 4:35 | 4:34 | 4:33 | 4:32 | 4:31 | 4:30 | 4:29 | 4:28 | 4:28 | 4:27 | 4:26 | 4:25 | 4:25 | 4:24 | 4:23 | 4:23 | 4:22 | 4:21 | 4:21 | 4:20 |
| Sunset (PM) | 6:28 | 6:29 | 6:30 | 6:31 | 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 | 6:45 | 6:46 | 6:47 | 6:48 | 6:49 | 6:50 | 6:51 | 6:52 | 6:52 | 6:53 | 6:54 | 6:55 | 6:56 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 13.7 | 4:48 | 6:28 |
| 2 | 13.7 | 4:47 | 6:29 |
| 3 | 13.7 | 4:45 | 6:30 |
| 4 | 13.8 | 4:44 | 6:31 |
| 5 | 13.8 | 4:43 | 6:32 |
| 6 | 13.9 | 4:42 | 6:33 |
| 7 | 13.9 | 4:41 | 6:34 |
| 8 | 13.9 | 4:39 | 6:35 |
| 9 | 14.0 | 4:38 | 6:36 |
| 10 | 14.0 | 4:37 | 6:37 |
| 11 | 14.0 | 4:36 | 6:38 |
| 12 | 14.1 | 4:35 | 6:39 |
| 13 | 14.1 | 4:34 | 6:40 |
| 14 | 14.1 | 4:33 | 6:41 |
| 15 | 14.2 | 4:32 | 6:42 |
| 16 | 14.2 | 4:31 | 6:43 |
| 17 | 14.2 | 4:30 | 6:44 |
| 18 | 14.3 | 4:29 | 6:45 |
| 19 | 14.3 | 4:28 | 6:45 |
| 20 | 14.3 | 4:28 | 6:46 |
| 21 | 14.3 | 4:27 | 6:47 |
| 22 | 14.4 | 4:26 | 6:48 |
| 23 | 14.4 | 4:25 | 6:49 |
| 24 | 14.4 | 4:25 | 6:50 |
| 25 | 14.4 | 4:24 | 6:51 |
| 26 | 14.5 | 4:23 | 6:52 |
| 27 | 14.5 | 4:23 | 6:52 |
| 28 | 14.5 | 4:22 | 6:53 |
| 29 | 14.5 | 4:21 | 6:54 |
| 30 | 14.6 | 4:21 | 6:55 |
| 31 | 14.6 | 4:20 | 6:56 |
Solar energy in May
Average shortwave solar energy reaching the ground each day in May, about 5.73 kWh/m².
For context, solar energy here swings from a low near 1.57 kWh/m² to a high of 5.86 kWh/m² in June across the year — May's 5.73 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) | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.6 | 5.6 | 5.6 | 5.6 | 5.6 | 5.6 | 5.6 | 5.7 | 5.7 | 5.7 | 5.8 | 5.8 | 5.8 | 5.9 | 5.9 | 5.9 | 6.0 | 6.0 | 6.0 | 6.1 | 6.1 | 6.1 | 6.1 |
| 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 | Intense | Intense | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 5.5 | Bright |
| 2 | 5.5 | Bright |
| 3 | 5.5 | Bright |
| 4 | 5.5 | Bright |
| 5 | 5.5 | Bright |
| 6 | 5.5 | Bright |
| 7 | 5.5 | Bright |
| 8 | 5.5 | 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 | 5.7 | Bright |
| 17 | 5.7 | Bright |
| 18 | 5.7 | Bright |
| 19 | 5.8 | Bright |
| 20 | 5.8 | Bright |
| 21 | 5.8 | Bright |
| 22 | 5.9 | Bright |
| 23 | 5.9 | Bright |
| 24 | 5.9 | Bright |
| 25 | 6.0 | Bright |
| 26 | 6.0 | Intense |
| 27 | 6.0 | Intense |
| 28 | 6.1 | Intense |
| 29 | 6.1 | Intense |
| 30 | 6.1 | Intense |
| 31 | 6.1 | Intense |
Hazard calendar for Oga
In May, Oga sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Oga sits in the Pacific typhoon belt; the season peaks July–October.
Is May a good time to visit Oga?
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 Oga for sightseeing.
What to pack for Oga in May
From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In May, Oga sees daytime highs around 14°C and nights near 12°C. Worth packing: a warm layer, rain gear and sun protection. About 13 days see rain.
Sea temperature near Oga in May
The nearest coast averages about 14°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 25°C and coldest in March near 9°C.
It's comfortable for a long swim from Jun 30 to Oct 23 — about 3.8 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 11 | 9 | 9 | 10 | 14 | 18 | 22 | 25 | 24 | 21 | 17 | 14 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Refreshing | Warm | Warm | Refreshing | Cool | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 11 | Bracing |
| Feb | 9 | Bracing |
| Mar | 9 | Bracing |
| Apr | 10 | Bracing |
| May | 14 | Bracing |
| Jun | 18 | Cool |
| Jul | 22 | Refreshing |
| Aug | 25 | Warm |
| Sep | 24 | Warm |
| Oct | 21 | Refreshing |
| Nov | 17 | Cool |
| Dec | 14 | Bracing |
UV index in Oga 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 Oga 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 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 3 | 6 | 8 | 7 | 5 | 9 | 7 | 4 | 2 | 1 |
| Level | Low | Moderate | Moderate | High | Very high | Very high | Moderate | Very high | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Moderate |
| Mar | 3 | Moderate |
| Apr | 6 | High |
| May | 8 | Very high |
| Jun | 7 | Very high |
| Jul | 5 | Moderate |
| Aug | 9 | Very high |
| Sep | 7 | High |
| Oct | 4 | Moderate |
| Nov | 2 | Moderate |
| Dec | 1 | Low |
Air quality in Oga 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 Oga is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (September, 9 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) | 11 | 15 | 20 | 21 | 18 | 13 | 11 | 10 | 9 | 10 | 10 | 10 |
| Level | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 11 | Good |
| Feb | 15 | Moderate |
| Mar | 20 | Moderate |
| Apr | 21 | Moderate |
| May | 18 | Moderate |
| Jun | 13 | Moderate |
| Jul | 11 | Good |
| Aug | 10 | Good |
| Sep | 9 | Good |
| Oct | 10 | Good |
| Nov | 10 | Good |
| Dec | 10 | Good |
Where is Oga?
Oga sits at 39.9°N, 139.8°E, 6 m above sea level, in Japan. The nearest listed city is Tennō, 11 km away.
Topography around Oga
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Oga.
Within 3 km, the terrain around Oga has only modest variations in elevation — a maximum elevation change of 112 m around an average of 15 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 713 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,449 m.
The land around Oga is covered by water (61%) and trees (27%) within 3 km, water (65%) and trees (22%) within 16 km, and trees (46%) and water (45%) 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 Oga (39.871°, 139.8493°, elevation 6 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).