Nagaoka weather in February
In February, Nagaoka sees average daytime highs of 6°C and overnight lows near -0°C, with 126 mm of precipitation across 20.5 wet days and about 10.6 hours of daylight. It is the 11th-warmest and 9th-wettest month of the year here.
Highs climb over the month, from about 5°C in the first days to 7°C by the end. The sky is clear or mostly clear about 8% of the time in February, and the air most often feels dry.
Daylight stretches from about 10 h 06 min at the start of February to 11 h 06 min by month's end. Set against the rest of the year, February is Nagaoka's 11th-clearest and 2nd-windiest month. For the whole year in context, see Nagaoka's year-round climate.
- Daytime high
- 6°
- 11th warmest
- Overnight low
- -0°
- 1st coldest
- Precipitation
- 126 mm
- 20.5 wet days
- Daylight
- 10 h 36 min
- 6:42 AM – 5:16 PM
- Cloud cover
- 73%
- 11th clearest
- Wind
- 11 km/h
- 2nd windiest
- Solar energy
- 3.03 kWh/m²
- Travel score
- 0.3
- out of 10
Temperature in February
Highs climb over the month, from about 5°C in the first days to 7°C by the end.
A typical February day in Nagaoka reaches about 6°C in the afternoon and slips back to -0°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 2°C and 10°C. Set against its neighbours, February runs on par with January and about 4°C cooler than March.
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
| Avg low (°C) | -1 | -1 | -1 | -1 | -1 | -1 | -1 | -1 | -1 | -1 | -1 | -1 | -1 | -1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 5 | -1 |
| 2 | 5 | -1 |
| 3 | 5 | -1 |
| 4 | 5 | -1 |
| 5 | 5 | -1 |
| 6 | 5 | -1 |
| 7 | 5 | -1 |
| 8 | 5 | -1 |
| 9 | 5 | -1 |
| 10 | 5 | -1 |
| 11 | 5 | -1 |
| 12 | 5 | -1 |
| 13 | 6 | -1 |
| 14 | 6 | -1 |
| 15 | 6 | 0 |
| 16 | 6 | 0 |
| 17 | 6 | 0 |
| 18 | 6 | 0 |
| 19 | 6 | 0 |
| 20 | 6 | 0 |
| 21 | 6 | 0 |
| 22 | 7 | 0 |
| 23 | 7 | 0 |
| 24 | 7 | 0 |
| 25 | 7 | 0 |
| 26 | 7 | 0 |
| 27 | 7 | 0 |
| 28 | 7 | 0 |
How February really feels in Nagaoka
Once humidity and wind are folded in, February averages 0 days that feel above 32°C and 28 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
The story in February is cold — wind chill drags the overnight "feels like" below the raw low.
Nagaoka weather by month
How February compares with the rest of the year at a glance. February is the 11th-warmest and 9th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 5° / -0° | 179 | 25 | 18.2 | 9.7 | 0.1 |
| Feb | 6° / -0° | 126 | 20.5 | 14.6 | 10.6 | 0.3 |
| Mar | 10° / 2° | 126 | 19.6 | 7.6 | 11.7 | 1.8 |
| Apr | 16° / 7° | 94 | 14.3 | 0.8 | 12.9 | 4.6 |
| May | 22° / 12° | 94 | 11.9 | 0 | 14 | 6.3 |
| Jun | 26° / 17° | 115 | 12.5 | 0 | 14.5 | 6.1 |
| Jul | 29° / 22° | 207 | 16.1 | 0 | 14.3 | 4.6 |
| Aug | 31° / 23° | 146 | 14.1 | 0 | 13.4 | 4.1 |
| Sep | 27° / 19° | 144 | 14 | 0 | 12.3 | 5.6 |
| Oct | 20° / 12° | 143 | 14.8 | 0 | 11 | 5.7 |
| Nov | 14° / 7° | 145 | 18.2 | 0.6 | 10 | 3.3 |
| Dec | 8° / 2° | 181 | 23.7 | 10 | 9.5 | 0.9 |
Cloud cover in February
The sky is clear or mostly clear about 8% of the time in February.
Beyond those clear spells, partly cloudy skies cover about 17% of February, with mostly cloudy or overcast conditions the remaining 76%.
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 21 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 25 | 25 | 25 | 25 | 26 | 25 | 25 | 25 | 26 | 26 | 27 | 27 | 27 | 27 | 28 | 28 |
| Cloudier (%) | 79 | 78 | 78 | 78 | 77 | 77 | 77 | 77 | 77 | 77 | 77 | 76 | 75 | 75 | 75 | 75 | 74 | 75 | 75 | 75 | 74 | 74 | 73 | 73 | 73 | 73 | 72 | 72 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 21 | 79 |
| 2 | 22 | 78 |
| 3 | 22 | 78 |
| 4 | 22 | 78 |
| 5 | 23 | 77 |
| 6 | 23 | 77 |
| 7 | 23 | 77 |
| 8 | 23 | 77 |
| 9 | 23 | 77 |
| 10 | 23 | 77 |
| 11 | 23 | 77 |
| 12 | 24 | 76 |
| 13 | 25 | 75 |
| 14 | 25 | 75 |
| 15 | 25 | 75 |
| 16 | 25 | 75 |
| 17 | 26 | 74 |
| 18 | 25 | 75 |
| 19 | 25 | 75 |
| 20 | 25 | 75 |
| 21 | 26 | 74 |
| 22 | 26 | 74 |
| 23 | 27 | 73 |
| 24 | 27 | 73 |
| 25 | 27 | 73 |
| 26 | 27 | 73 |
| 27 | 28 | 72 |
| 28 | 28 | 72 |
Chance of precipitation in February
Nagaoka gets around 126 mm of rain and snow over 20.5 wet days in February. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable precipitation averages around 74% and peaks near 80% on the wettest days, and about 15 days bring snow. 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 80 | 80 | 80 | 80 | 79 | 79 | 78 | 78 | 77 | 77 | 76 | 76 | 75 | 74 | 74 | 73 | 73 | 72 | 71 | 70 | 70 | 69 | 69 | 68 | 68 | 67 | 67 | 67 |
| Snow chance (%) | 63 | 63 | 62 | 62 | 62 | 61 | 60 | 60 | 59 | 58 | 57 | 56 | 55 | 55 | 54 | 53 | 51 | 50 | 49 | 47 | 46 | 44 | 43 | 41 | 40 | 38 | 37 | 36 |
| Rain chance (%) | Snow chance (%) | |
|---|---|---|
| 1 | 80 | 63 |
| 2 | 80 | 63 |
| 3 | 80 | 62 |
| 4 | 80 | 62 |
| 5 | 79 | 62 |
| 6 | 79 | 61 |
| 7 | 78 | 60 |
| 8 | 78 | 60 |
| 9 | 77 | 59 |
| 10 | 77 | 58 |
| 11 | 76 | 57 |
| 12 | 76 | 56 |
| 13 | 75 | 55 |
| 14 | 74 | 55 |
| 15 | 74 | 54 |
| 16 | 73 | 53 |
| 17 | 73 | 51 |
| 18 | 72 | 50 |
| 19 | 71 | 49 |
| 20 | 70 | 47 |
| 21 | 70 | 46 |
| 22 | 69 | 44 |
| 23 | 69 | 43 |
| 24 | 68 | 41 |
| 25 | 68 | 40 |
| 26 | 67 | 38 |
| 27 | 67 | 37 |
| 28 | 67 | 36 |
Humidity in February
Most of February feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, February lands in the dry band about 100% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| Dry (%) | |
|---|---|
| 1 | 100 |
| 2 | 100 |
| 3 | 100 |
| 4 | 100 |
| 5 | 100 |
| 6 | 100 |
| 7 | 100 |
| 8 | 100 |
| 9 | 100 |
| 10 | 100 |
| 11 | 100 |
| 12 | 100 |
| 13 | 100 |
| 14 | 100 |
| 15 | 100 |
| 16 | 100 |
| 17 | 100 |
| 18 | 100 |
| 19 | 100 |
| 20 | 100 |
| 21 | 100 |
| 22 | 100 |
| 23 | 100 |
| 24 | 100 |
| 25 | 100 |
| 26 | 100 |
| 27 | 100 |
| 28 | 100 |
Wind in February
Winds average 11 km/h in February.
Across February, daily wind ranges from about 11 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 |
| 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 |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 11 | calm |
| 2 | 11 | calm |
| 3 | 11 | calm |
| 4 | 11 | calm |
| 5 | 11 | calm |
| 6 | 11 | calm |
| 7 | 11 | calm |
| 8 | 11 | calm |
| 9 | 11 | calm |
| 10 | 11 | calm |
| 11 | 11 | calm |
| 12 | 11 | calm |
| 13 | 11 | calm |
| 14 | 11 | calm |
| 15 | 11 | calm |
| 16 | 11 | calm |
| 17 | 11 | calm |
| 18 | 11 | calm |
| 19 | 11 | calm |
| 20 | 11 | calm |
| 21 | 11 | calm |
| 22 | 11 | calm |
| 23 | 11 | calm |
| 24 | 11 | calm |
| 25 | 11 | calm |
| 26 | 11 | calm |
| 27 | 11 | calm |
| 28 | 11 | calm |
Sunrise & sunset in February
Daylight runs from about 10 h 06 min at the start of February to 11 h 06 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 60 minutes over February. Sunrise moves from 6:55 AM to 6:26 AM, and sunset from 5:01 PM to 5:30 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 10.1 | 10.1 | 10.2 | 10.2 | 10.2 | 10.3 | 10.3 | 10.3 | 10.4 | 10.4 | 10.4 | 10.5 | 10.5 | 10.5 | 10.6 | 10.6 | 10.6 | 10.7 | 10.7 | 10.7 | 10.8 | 10.8 | 10.9 | 10.9 | 10.9 | 11.0 | 11.0 | 11.1 |
| Sunrise (AM) | 6:55 | 6:54 | 6:54 | 6:53 | 6:52 | 6:51 | 6:50 | 6:49 | 6:48 | 6:47 | 6:46 | 6:45 | 6:44 | 6:43 | 6:42 | 6:41 | 6:40 | 6:39 | 6:38 | 6:36 | 6:35 | 6:34 | 6:33 | 6:32 | 6:30 | 6:29 | 6:28 | 6:26 |
| Sunset (PM) | 5:01 | 5:02 | 5:03 | 5:04 | 5:05 | 5:06 | 5:08 | 5:09 | 5:10 | 5:11 | 5:12 | 5:13 | 5:14 | 5:15 | 5:16 | 5:17 | 5:18 | 5:19 | 5:20 | 5:21 | 5:23 | 5:24 | 5:25 | 5:26 | 5:27 | 5:28 | 5:29 | 5:30 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 10.1 | 6:55 | 5:01 |
| 2 | 10.1 | 6:54 | 5:02 |
| 3 | 10.2 | 6:54 | 5:03 |
| 4 | 10.2 | 6:53 | 5:04 |
| 5 | 10.2 | 6:52 | 5:05 |
| 6 | 10.3 | 6:51 | 5:06 |
| 7 | 10.3 | 6:50 | 5:08 |
| 8 | 10.3 | 6:49 | 5:09 |
| 9 | 10.4 | 6:48 | 5:10 |
| 10 | 10.4 | 6:47 | 5:11 |
| 11 | 10.4 | 6:46 | 5:12 |
| 12 | 10.5 | 6:45 | 5:13 |
| 13 | 10.5 | 6:44 | 5:14 |
| 14 | 10.5 | 6:43 | 5:15 |
| 15 | 10.6 | 6:42 | 5:16 |
| 16 | 10.6 | 6:41 | 5:17 |
| 17 | 10.6 | 6:40 | 5:18 |
| 18 | 10.7 | 6:39 | 5:19 |
| 19 | 10.7 | 6:38 | 5:20 |
| 20 | 10.7 | 6:36 | 5:21 |
| 21 | 10.8 | 6:35 | 5:23 |
| 22 | 10.8 | 6:34 | 5:24 |
| 23 | 10.9 | 6:33 | 5:25 |
| 24 | 10.9 | 6:32 | 5:26 |
| 25 | 10.9 | 6:30 | 5:27 |
| 26 | 11.0 | 6:29 | 5:28 |
| 27 | 11.0 | 6:28 | 5:29 |
| 28 | 11.1 | 6:26 | 5:30 |
Solar energy in February
Average shortwave solar energy reaching the ground each day in February, about 3.03 kWh/m².
For context, solar energy here swings from a low near 1.74 kWh/m² to a high of 5.68 kWh/m² in May across the year — February's 3.03 kWh/m² falls in the middle.
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 2.6 | 2.6 | 2.6 | 2.7 | 2.7 | 2.7 | 2.8 | 2.8 | 2.8 | 2.9 | 2.9 | 2.9 | 3.0 | 3.0 | 3.0 | 3.1 | 3.1 | 3.1 | 3.2 | 3.2 | 3.2 | 3.3 | 3.3 | 3.3 | 3.4 | 3.4 | 3.4 | 3.5 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 2.6 | Moderate |
| 2 | 2.6 | Moderate |
| 3 | 2.6 | Moderate |
| 4 | 2.7 | Moderate |
| 5 | 2.7 | Moderate |
| 6 | 2.7 | Moderate |
| 7 | 2.8 | Moderate |
| 8 | 2.8 | Moderate |
| 9 | 2.8 | Moderate |
| 10 | 2.9 | Moderate |
| 11 | 2.9 | Moderate |
| 12 | 2.9 | Moderate |
| 13 | 3.0 | Moderate |
| 14 | 3.0 | Moderate |
| 15 | 3.0 | Moderate |
| 16 | 3.1 | Moderate |
| 17 | 3.1 | Moderate |
| 18 | 3.1 | Moderate |
| 19 | 3.2 | Moderate |
| 20 | 3.2 | Moderate |
| 21 | 3.2 | Moderate |
| 22 | 3.3 | Moderate |
| 23 | 3.3 | Moderate |
| 24 | 3.3 | Moderate |
| 25 | 3.4 | Moderate |
| 26 | 3.4 | Moderate |
| 27 | 3.4 | Moderate |
| 28 | 3.5 | Moderate |
Hazard calendar for Nagaoka
In February, Nagaoka sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Nagaoka sits in the Pacific typhoon belt; the season peaks July–October.
Is February a good time to visit Nagaoka?
Our two travel scores rate February for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
February is a weaker month for outdoor sightseeing in Nagaoka.
What to pack for Nagaoka in February
From February's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In February, Nagaoka sees daytime highs around 6°C and nights near -0°C. Pack a warm layer and rain gear. Worth having: a heavy coat. About 21 days see rain.
Sea temperature near Nagaoka in February
The nearest coast averages about 11°C in February — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 22 km away) is warmest in August at about 27°C and coldest in March near 10°C.
It's comfortable for a long swim from Jun 21 to Oct 31 — about 4.4 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 12 | 11 | 10 | 11 | 15 | 20 | 23 | 27 | 25 | 22 | 18 | 15 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Refreshing | Warm | Warm | Refreshing | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 12 | Bracing |
| Feb | 11 | Bracing |
| Mar | 10 | Bracing |
| Apr | 11 | Bracing |
| May | 15 | Bracing |
| Jun | 20 | Cool |
| Jul | 23 | Refreshing |
| Aug | 27 | Warm |
| Sep | 25 | Warm |
| Oct | 22 | Refreshing |
| Nov | 18 | Cool |
| Dec | 15 | Cool |
UV index in Nagaoka in February
Clear-sky midday UV in February peaks around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Nagaoka peaks around August 12 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 2 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 3 | 4 | 6 | 8 | 8 | 9 | 10 | 8 | 5 | 3 | 2 |
| Level | Low | Moderate | Moderate | High | Very high | Very high | Very high | Very high | Very high | High | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 3 | Moderate |
| Mar | 4 | Moderate |
| Apr | 6 | High |
| May | 8 | Very high |
| Jun | 8 | Very high |
| Jul | 9 | Very high |
| Aug | 10 | Very high |
| Sep | 8 | Very high |
| Oct | 5 | High |
| Nov | 3 | Moderate |
| Dec | 2 | Low |
Air quality in Nagaoka in February
Average fine-particle pollution (PM2.5) through the year — so you can see where February falls, not just the annual average.
Air quality in Nagaoka is worst in April — around 23 µg/m³ PM2.5 (moderate), about 2.3× 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 | 22 | 23 | 22 | 19 | 17 | 14 | 12 | 12 | 11 | 10 |
| Level | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 12 | Good |
| Feb | 15 | Moderate |
| Mar | 22 | Moderate |
| Apr | 23 | Moderate |
| May | 22 | Moderate |
| Jun | 19 | Moderate |
| Jul | 17 | Moderate |
| Aug | 14 | Moderate |
| Sep | 12 | Moderate |
| Oct | 12 | Good |
| Nov | 11 | Good |
| Dec | 10 | Good |
Where is Nagaoka?
Nagaoka sits at 37.5°N, 138.8°E, 23 m above sea level, in Japan. The nearest listed city is Mitsuke, 12 km away.
Topography around Nagaoka
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Nagaoka.
Within 3 km, the terrain around Nagaoka has only modest variations in elevation — a maximum elevation change of 53 m around an average of 23 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 741 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,314 m.
The land around Nagaoka is covered by artificial surfaces (64%) within 3 km, trees (59%) and cropland (25%) within 16 km, and trees (56%) and water (32%) 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 Nagaoka (37.45°, 138.85°, elevation 23 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).