Narashino weather in October
In October, Narashino sees average daytime highs of 21°C and overnight lows near 15°C, with 207 mm of rain across 12.9 wet days and about 11.1 hours of daylight. It is the 6th-warmest and 1st-wettest month of the year here.
Highs ease over the month, from about 23°C in the first days to 19°C by the end. The sky is clear or mostly clear about 33% of the time in October, and the air most often feels dry.
Daylight stretches from about 11 h 36 min at the start of October to 10 h 36 min by month's end. Set against the rest of the year, October is Narashino's 6th-clearest and 9th-windiest month. For the whole year in context, see Narashino's year-round climate.
- Daytime high
- 21°
- 6th warmest
- Overnight low
- 15°
- 8th coldest
- Rainfall
- 207 mm
- 12.9 wet days
- Daylight
- 11 h 06 min
- 5:52 AM – 4:57 PM
- Cloud cover
- 60%
- 6th clearest
- Wind
- 13 km/h
- 9th windiest
- Solar energy
- 2.91 kWh/m²
- Travel score
- 6.1
- out of 10
Temperature in October
Highs ease over the month, from about 23°C in the first days to 19°C by the end.
A typical October day in Narashino reaches about 21°C in the afternoon and slips back to 15°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 24°C. Set against its neighbours, October runs about 5°C cooler than September and about 5°C warmer than November.
| 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) | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 20 | 19 | 19 | 19 | 19 | 19 |
| Avg low (°C) | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 24 | 18 |
| 2 | 23 | 18 |
| 3 | 23 | 18 |
| 4 | 23 | 18 |
| 5 | 23 | 18 |
| 6 | 23 | 17 |
| 7 | 23 | 17 |
| 8 | 23 | 17 |
| 9 | 22 | 17 |
| 10 | 22 | 17 |
| 11 | 22 | 17 |
| 12 | 22 | 16 |
| 13 | 22 | 16 |
| 14 | 22 | 16 |
| 15 | 21 | 16 |
| 16 | 21 | 16 |
| 17 | 21 | 15 |
| 18 | 21 | 15 |
| 19 | 21 | 15 |
| 20 | 21 | 15 |
| 21 | 20 | 14 |
| 22 | 20 | 14 |
| 23 | 20 | 14 |
| 24 | 20 | 14 |
| 25 | 20 | 14 |
| 26 | 20 | 13 |
| 27 | 19 | 13 |
| 28 | 19 | 13 |
| 29 | 19 | 13 |
| 30 | 19 | 13 |
| 31 | 19 | 13 |
How October really feels in Narashino
Once humidity and wind are folded in, October 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.
October sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Narashino weather by month
How October compares with the rest of the year at a glance. October is the 6th-warmest and 1st-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° / 2° | 70 | 6.8 | 0.8 | 9.9 | 2.0 |
| Feb | 10° / 3° | 66 | 7.9 | 1.5 | 10.6 | 2.2 |
| Mar | 13° / 5° | 120 | 12.2 | 0.7 | 11.7 | 3.4 |
| Apr | 17° / 10° | 114 | 11.9 | 0 | 12.9 | 5.3 |
| May | 22° / 15° | 131 | 11.6 | 0 | 13.9 | 6.2 |
| Jun | 25° / 19° | 161 | 13.7 | 0 | 14.4 | 5.8 |
| Jul | 28° / 23° | 153 | 13.7 | 0 | 14.2 | 5.1 |
| Aug | 30° / 24° | 112 | 11.8 | 0 | 13.3 | 4.8 |
| Sep | 26° / 21° | 175 | 14.2 | 0 | 12.2 | 5.7 |
| Oct | 21° / 15° | 207 | 12.9 | 0 | 11.1 | 6.1 |
| Nov | 16° / 10° | 98 | 10.1 | 0 | 10.1 | 5.1 |
| Dec | 11° / 5° | 63 | 7.7 | 0.1 | 9.6 | 3.2 |
Cloud cover in October
The sky is clear or mostly clear about 33% of the time in October.
Beyond those clear spells, partly cloudy skies cover about 13% of October, with mostly cloudy or overcast conditions the remaining 54%. Skies tend to open up 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 (%) | 37 | 38 | 38 | 39 | 40 | 40 | 41 | 41 | 42 | 43 | 43 | 43 | 44 | 45 | 44 | 45 | 46 | 47 | 47 | 48 | 48 | 49 | 50 | 51 | 52 | 53 | 53 | 54 | 55 | 56 | 56 |
| Cloudier (%) | 63 | 62 | 62 | 61 | 60 | 60 | 59 | 59 | 58 | 57 | 57 | 57 | 56 | 55 | 56 | 55 | 54 | 53 | 53 | 52 | 52 | 51 | 50 | 49 | 48 | 47 | 47 | 46 | 45 | 44 | 44 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 37 | 63 |
| 2 | 38 | 62 |
| 3 | 38 | 62 |
| 4 | 39 | 61 |
| 5 | 40 | 60 |
| 6 | 40 | 60 |
| 7 | 41 | 59 |
| 8 | 41 | 59 |
| 9 | 42 | 58 |
| 10 | 43 | 57 |
| 11 | 43 | 57 |
| 12 | 43 | 57 |
| 13 | 44 | 56 |
| 14 | 45 | 55 |
| 15 | 44 | 56 |
| 16 | 45 | 55 |
| 17 | 46 | 54 |
| 18 | 47 | 53 |
| 19 | 47 | 53 |
| 20 | 48 | 52 |
| 21 | 48 | 52 |
| 22 | 49 | 51 |
| 23 | 50 | 50 |
| 24 | 51 | 49 |
| 25 | 52 | 48 |
| 26 | 53 | 47 |
| 27 | 53 | 47 |
| 28 | 54 | 46 |
| 29 | 55 | 45 |
| 30 | 56 | 44 |
| 31 | 56 | 44 |
Chance of precipitation in October
Narashino gets around 207 mm of rain over 12.9 wet days in October, the wettest month. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 41% and peaks near 47% 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 (%) | 47 | 46 | 46 | 46 | 45 | 45 | 45 | 45 | 44 | 44 | 44 | 43 | 43 | 42 | 42 | 41 | 41 | 40 | 40 | 40 | 39 | 39 | 39 | 38 | 38 | 37 | 37 | 36 | 36 | 36 | 35 |
| Rain chance (%) | |
|---|---|
| 1 | 47 |
| 2 | 46 |
| 3 | 46 |
| 4 | 46 |
| 5 | 45 |
| 6 | 45 |
| 7 | 45 |
| 8 | 45 |
| 9 | 44 |
| 10 | 44 |
| 11 | 44 |
| 12 | 43 |
| 13 | 43 |
| 14 | 42 |
| 15 | 42 |
| 16 | 41 |
| 17 | 41 |
| 18 | 40 |
| 19 | 40 |
| 20 | 40 |
| 21 | 39 |
| 22 | 39 |
| 23 | 39 |
| 24 | 38 |
| 25 | 38 |
| 26 | 37 |
| 27 | 37 |
| 28 | 36 |
| 29 | 36 |
| 30 | 36 |
| 31 | 35 |
Humidity in October
Most of October feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, October lands in the dry band about 41% 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 (%) | 14 | 15 | 16 | 17 | 19 | 20 | 22 | 24 | 26 | 28 | 30 | 32 | 34 | 36 | 38 | 40 | 43 | 45 | 47 | 49 | 51 | 54 | 55 | 57 | 58 | 61 | 62 | 64 | 66 | 67 | 69 |
| Comfortable (%) | 21 | 21 | 21 | 22 | 22 | 23 | 24 | 24 | 25 | 26 | 28 | 29 | 30 | 31 | 31 | 32 | 32 | 32 | 32 | 32 | 32 | 31 | 31 | 30 | 30 | 29 | 28 | 27 | 25 | 24 | 23 |
| Humid (%) | 38 | 38 | 38 | 38 | 38 | 37 | 36 | 34 | 33 | 31 | 29 | 27 | 25 | 23 | 21 | 20 | 18 | 16 | 15 | 14 | 13 | 12 | 11 | 11 | 10 | 9 | 9 | 8 | 8 | 8 | 7 |
| Muggy (%) | 22 | 21 | 20 | 19 | 18 | 17 | 17 | 16 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 8 | 7 | 6 | 5 | 4 | 4 | 3 | 3 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 |
| Oppressive (%) | 5 | 4 | 4 | 3 | 3 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| 1 | 14 | 21 | 38 | 22 | 5 |
| 2 | 15 | 21 | 38 | 21 | 4 |
| 3 | 16 | 21 | 38 | 20 | 4 |
| 4 | 17 | 22 | 38 | 19 | 3 |
| 5 | 19 | 22 | 38 | 18 | 3 |
| 6 | 20 | 23 | 37 | 17 | 2 |
| 7 | 22 | 24 | 36 | 17 | 2 |
| 8 | 24 | 24 | 34 | 16 | 2 |
| 9 | 26 | 25 | 33 | 14 | 2 |
| 10 | 28 | 26 | 31 | 13 | 1 |
| 11 | 30 | 28 | 29 | 12 | 1 |
| 12 | 32 | 29 | 27 | 11 | 1 |
| 13 | 34 | 30 | 25 | 10 | 1 |
| 14 | 36 | 31 | 23 | 9 | 1 |
| 15 | 38 | 31 | 21 | 8 | 1 |
| 16 | 40 | 32 | 20 | 8 | 1 |
| 17 | 43 | 32 | 18 | 7 | 1 |
| 18 | 45 | 32 | 16 | 6 | 1 |
| 19 | 47 | 32 | 15 | 5 | 1 |
| 20 | 49 | 32 | 14 | 4 | 0 |
| 21 | 51 | 32 | 13 | 4 | 0 |
| 22 | 54 | 31 | 12 | 3 | 0 |
| 23 | 55 | 31 | 11 | 3 | 0 |
| 24 | 57 | 30 | 11 | 2 | 0 |
| 25 | 58 | 30 | 10 | 2 | 0 |
| 26 | 61 | 29 | 9 | 1 | 0 |
| 27 | 62 | 28 | 9 | 1 | 0 |
| 28 | 64 | 27 | 8 | 1 | 0 |
| 29 | 66 | 25 | 8 | 1 | 0 |
| 30 | 67 | 24 | 8 | 1 | 0 |
| 31 | 69 | 23 | 7 | 1 | 0 |
Wind in October
Winds average 13 km/h in October.
Across October, daily wind ranges from about 12 km/h on the calmest days to 13 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) | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
| 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 | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 13 | light breeze |
| 2 | 13 | light breeze |
| 3 | 13 | light breeze |
| 4 | 13 | light breeze |
| 5 | 13 | light breeze |
| 6 | 13 | light breeze |
| 7 | 13 | light breeze |
| 8 | 13 | light breeze |
| 9 | 13 | light breeze |
| 10 | 13 | light breeze |
| 11 | 13 | light breeze |
| 12 | 13 | light breeze |
| 13 | 13 | light breeze |
| 14 | 13 | light breeze |
| 15 | 13 | light breeze |
| 16 | 13 | light breeze |
| 17 | 13 | light breeze |
| 18 | 13 | light breeze |
| 19 | 13 | light breeze |
| 20 | 12 | light breeze |
| 21 | 12 | light breeze |
| 22 | 12 | light breeze |
| 23 | 12 | light breeze |
| 24 | 12 | light breeze |
| 25 | 12 | light breeze |
| 26 | 12 | calm |
| 27 | 12 | calm |
| 28 | 12 | calm |
| 29 | 12 | calm |
| 30 | 12 | calm |
| 31 | 12 | calm |
Sunrise & sunset in October
Daylight runs from about 11 h 36 min at the start of October to 10 h 36 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 60 minutes over October. Sunrise moves from 5:40 AM to 6:07 AM, and sunset from 5:18 PM to 4:40 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) | 11.6 | 11.6 | 11.6 | 11.5 | 11.5 | 11.5 | 11.4 | 11.4 | 11.3 | 11.3 | 11.3 | 11.2 | 11.2 | 11.2 | 11.1 | 11.1 | 11.0 | 11.0 | 11.0 | 10.9 | 10.9 | 10.9 | 10.8 | 10.8 | 10.8 | 10.7 | 10.7 | 10.7 | 10.6 | 10.6 | 10.6 |
| Sunrise (AM) | 5:40 | 5:40 | 5:41 | 5:42 | 5:43 | 5:44 | 5:45 | 5:45 | 5:46 | 5:47 | 5:48 | 5:49 | 5:50 | 5:51 | 5:52 | 5:52 | 5:53 | 5:54 | 5:55 | 5:56 | 5:57 | 5:58 | 5:59 | 6:00 | 6:01 | 6:02 | 6:03 | 6:04 | 6:05 | 6:06 | 6:07 |
| Sunset (PM) | 5:18 | 5:17 | 5:15 | 5:14 | 5:12 | 5:11 | 5:09 | 5:08 | 5:07 | 5:05 | 5:04 | 5:03 | 5:01 | 5:00 | 4:59 | 4:57 | 4:56 | 4:55 | 4:53 | 4:52 | 4:51 | 4:50 | 4:49 | 4:48 | 4:46 | 4:45 | 4:44 | 4:43 | 4:42 | 4:41 | 4:40 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 11.6 | 5:40 | 5:18 |
| 2 | 11.6 | 5:40 | 5:17 |
| 3 | 11.6 | 5:41 | 5:15 |
| 4 | 11.5 | 5:42 | 5:14 |
| 5 | 11.5 | 5:43 | 5:12 |
| 6 | 11.5 | 5:44 | 5:11 |
| 7 | 11.4 | 5:45 | 5:09 |
| 8 | 11.4 | 5:45 | 5:08 |
| 9 | 11.3 | 5:46 | 5:07 |
| 10 | 11.3 | 5:47 | 5:05 |
| 11 | 11.3 | 5:48 | 5:04 |
| 12 | 11.2 | 5:49 | 5:03 |
| 13 | 11.2 | 5:50 | 5:01 |
| 14 | 11.2 | 5:51 | 5:00 |
| 15 | 11.1 | 5:52 | 4:59 |
| 16 | 11.1 | 5:52 | 4:57 |
| 17 | 11.0 | 5:53 | 4:56 |
| 18 | 11.0 | 5:54 | 4:55 |
| 19 | 11.0 | 5:55 | 4:53 |
| 20 | 10.9 | 5:56 | 4:52 |
| 21 | 10.9 | 5:57 | 4:51 |
| 22 | 10.9 | 5:58 | 4:50 |
| 23 | 10.8 | 5:59 | 4:49 |
| 24 | 10.8 | 6:00 | 4:48 |
| 25 | 10.8 | 6:01 | 4:46 |
| 26 | 10.7 | 6:02 | 4:45 |
| 27 | 10.7 | 6:03 | 4:44 |
| 28 | 10.7 | 6:04 | 4:43 |
| 29 | 10.6 | 6:05 | 4:42 |
| 30 | 10.6 | 6:06 | 4:41 |
| 31 | 10.6 | 6:07 | 4:40 |
Solar energy in October
Average shortwave solar energy reaching the ground each day in October, about 2.91 kWh/m².
For context, solar energy here swings from a low near 2.32 kWh/m² to a high of 5.16 kWh/m² in May across the year — October's 2.91 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 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 3.2 | 3.1 | 3.1 | 3.1 | 3.1 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 3.0 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.9 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 |
| 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 | Moderate | Moderate | Moderate |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 3.2 | Moderate |
| 2 | 3.1 | Moderate |
| 3 | 3.1 | Moderate |
| 4 | 3.1 | Moderate |
| 5 | 3.1 | Moderate |
| 6 | 3.0 | Moderate |
| 7 | 3.0 | Moderate |
| 8 | 3.0 | Moderate |
| 9 | 3.0 | Moderate |
| 10 | 3.0 | Moderate |
| 11 | 3.0 | Moderate |
| 12 | 3.0 | Moderate |
| 13 | 2.9 | Moderate |
| 14 | 2.9 | Moderate |
| 15 | 2.9 | Moderate |
| 16 | 2.9 | Moderate |
| 17 | 2.9 | Moderate |
| 18 | 2.9 | Moderate |
| 19 | 2.9 | Moderate |
| 20 | 2.9 | Moderate |
| 21 | 2.9 | Moderate |
| 22 | 2.9 | Moderate |
| 23 | 2.9 | Moderate |
| 24 | 2.8 | Moderate |
| 25 | 2.8 | Moderate |
| 26 | 2.8 | Moderate |
| 27 | 2.8 | Moderate |
| 28 | 2.8 | Moderate |
| 29 | 2.8 | Moderate |
| 30 | 2.8 | Moderate |
| 31 | 2.8 | Moderate |
Hazard calendar for Narashino
In October, Narashino sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Narashino sits in the Pacific typhoon belt; the season peaks July–October.
Is October a good time to visit Narashino?
Our two travel scores rate October for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
October is a reasonable time to visit Narashino for sightseeing.
What to pack for Narashino in October
From October's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In October, Narashino sees daytime highs around 21°C and nights near 15°C. Worth packing: rain gear. About 13 days see rain.
Sea temperature near Narashino in October
The nearest coast averages about 22°C in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 16 km away) is warmest in August at about 26°C and coldest in February near 13°C.
It's comfortable for a long swim from Jun 7 to Nov 3 — about 4.9 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 | 13 | 15 | 18 | 21 | 23 | 26 | 25 | 22 | 19 | 16 |
| Comfort | Bracing | Bracing | Bracing | Cool | Cool | Refreshing | Refreshing | Warm | Warm | Refreshing | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 14 | Bracing |
| Feb | 13 | Bracing |
| Mar | 13 | Bracing |
| Apr | 15 | Cool |
| May | 18 | Cool |
| Jun | 21 | Refreshing |
| Jul | 23 | Refreshing |
| Aug | 26 | Warm |
| Sep | 25 | Warm |
| Oct | 22 | Refreshing |
| Nov | 19 | Cool |
| Dec | 16 | Cool |
UV index in Narashino in October
Clear-sky midday UV in October peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Narashino peaks around August 10 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 2 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 4 | 4 | 7 | 8 | 9 | 10 | 10 | 8 | 6 | 3 | 2 |
| Level | Moderate | Moderate | Moderate | High | Very high | Very high | Very high | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Moderate |
| Feb | 4 | Moderate |
| Mar | 4 | Moderate |
| Apr | 7 | High |
| May | 8 | Very high |
| Jun | 9 | Very high |
| Jul | 10 | Very high |
| Aug | 10 | Very high |
| Sep | 8 | Very high |
| Oct | 6 | High |
| Nov | 3 | Moderate |
| Dec | 2 | Moderate |
Air quality in Narashino in October
Average fine-particle pollution (PM2.5) through the year — so you can see where October falls, not just the annual average.
Air quality in Narashino is worst in March — around 25 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (December, 14 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) | 15 | 18 | 25 | 25 | 24 | 19 | 16 | 15 | 15 | 16 | 16 | 14 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 15 | Moderate |
| Feb | 18 | Moderate |
| Mar | 25 | Moderate |
| Apr | 25 | Moderate |
| May | 24 | Moderate |
| Jun | 19 | Moderate |
| Jul | 16 | Moderate |
| Aug | 15 | Moderate |
| Sep | 15 | Moderate |
| Oct | 16 | Moderate |
| Nov | 16 | Moderate |
| Dec | 14 | Moderate |
Where is Narashino?
Narashino sits at 35.7°N, 140.0°E, 16 m above sea level, in Japan. The nearest listed city is Makuhari, 4.0 km away.
Topography around Narashino
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Narashino.
Within 3 km, the terrain around Narashino has only modest variations in elevation — a maximum elevation change of 39 m around an average of 17 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 65 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,251 m.
The land around Narashino is covered by artificial surfaces (82%) within 3 km, artificial surfaces (49%) and water (25%) within 16 km, and water (30%), trees (27%) and artificial surfaces (25%) 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 Narashino (35.6818°, 140.0415°, elevation 16 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).