Futtsu weather in December
In December, Futtsu sees average daytime highs of 13°C and overnight lows near 9°C, with 73 mm of rain across 8.5 wet days and about 9.7 hours of daylight. It is the 10th-warmest and 12th-wettest month of the year here.
Highs ease over the month, from about 14°C in the first days to 11°C by the end. The sky is clear or mostly clear about 51% of the time in December, and the air most often feels dry.
Daylight stretches from about 9 h 48 min at the start of December to 9 h 36 min by month's end. Set against the rest of the year, December is Futtsu's 2nd-clearest and 5th-windiest month. For the whole year in context, see Futtsu's year-round climate.
- Daytime high
- 13°
- 10th warmest
- Overnight low
- 9°
- 4th coldest
- Rainfall
- 73 mm
- 8.5 wet days
- Daylight
- 9 h 36 min
- 6:48 AM – 4:26 PM
- Cloud cover
- 44%
- 2nd clearest
- Wind
- 19 km/h
- 5th windiest
- Solar energy
- 2.28 kWh/m²
- Travel score
- 3.7
- out of 10
Futtsu is city in Chiba Prefecture, Japan.
- Density
- 251/km²
- people per km²
- Founded
- 1971
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in December
Highs ease over the month, from about 14°C in the first days to 11°C by the end.
A typical December day in Futtsu reaches about 13°C in the afternoon and slips back to 9°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 9°C and 16°C. Set against its neighbours, December runs about 4°C cooler than November and about 3°C warmer than January.
| 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) | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 11 |
| Avg low (°C) | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 7 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 14 | 11 |
| 2 | 14 | 11 |
| 3 | 14 | 10 |
| 4 | 14 | 10 |
| 5 | 14 | 10 |
| 6 | 14 | 10 |
| 7 | 14 | 10 |
| 8 | 13 | 10 |
| 9 | 13 | 9 |
| 10 | 13 | 9 |
| 11 | 13 | 9 |
| 12 | 13 | 9 |
| 13 | 13 | 9 |
| 14 | 13 | 9 |
| 15 | 13 | 9 |
| 16 | 12 | 8 |
| 17 | 12 | 8 |
| 18 | 12 | 8 |
| 19 | 12 | 8 |
| 20 | 12 | 8 |
| 21 | 12 | 8 |
| 22 | 12 | 8 |
| 23 | 12 | 8 |
| 24 | 12 | 8 |
| 25 | 11 | 8 |
| 26 | 11 | 7 |
| 27 | 11 | 7 |
| 28 | 11 | 7 |
| 29 | 11 | 7 |
| 30 | 11 | 7 |
| 31 | 11 | 7 |
Futtsu weather by month
How December compares with the rest of the year at a glance. December is the 10th-warmest and 12th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 10° / 6° | 82 | 7.4 | 0.4 | 9.9 | 2.5 |
| Feb | 10° / 6° | 83 | 8.5 | 0.7 | 10.7 | 2.4 |
| Mar | 13° / 8° | 144 | 13 | 0.2 | 11.7 | 3.3 |
| Apr | 16° / 13° | 126 | 11.6 | 0 | 12.9 | 4.8 |
| May | 19° / 17° | 138 | 10.9 | 0 | 13.8 | 6.0 |
| Jun | 22° / 20° | 182 | 12.9 | 0 | 14.3 | 5.8 |
| Jul | 25° / 23° | 147 | 11.5 | 0 | 14.1 | 6.4 |
| Aug | 27° / 25° | 107 | 9.8 | 0 | 13.3 | 6.5 |
| Sep | 25° / 22° | 185 | 13.2 | 0 | 12.2 | 6.2 |
| Oct | 21° / 18° | 222 | 12.7 | 0 | 11.1 | 6.1 |
| Nov | 17° / 13° | 115 | 10.7 | 0 | 10.1 | 5.3 |
| Dec | 13° / 9° | 73 | 8.5 | 0 | 9.7 | 3.7 |
Cloud cover in December
The sky is clear or mostly clear about 51% of the time in December.
Beyond those clear spells, partly cloudy skies cover about 16% of December, with mostly cloudy or overcast conditions the remaining 33%. 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 (%) | 60 | 60 | 60 | 60 | 61 | 61 | 62 | 62 | 63 | 65 | 65 | 65 | 66 | 66 | 66 | 67 | 68 | 68 | 69 | 69 | 69 | 70 | 71 | 72 | 72 | 72 | 73 | 73 | 73 | 74 | 74 |
| Cloudier (%) | 40 | 40 | 40 | 40 | 39 | 39 | 38 | 38 | 37 | 35 | 35 | 35 | 34 | 34 | 34 | 33 | 32 | 32 | 31 | 31 | 31 | 30 | 29 | 28 | 28 | 28 | 27 | 27 | 27 | 26 | 26 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 60 | 40 |
| 2 | 60 | 40 |
| 3 | 60 | 40 |
| 4 | 60 | 40 |
| 5 | 61 | 39 |
| 6 | 61 | 39 |
| 7 | 62 | 38 |
| 8 | 62 | 38 |
| 9 | 63 | 37 |
| 10 | 65 | 35 |
| 11 | 65 | 35 |
| 12 | 65 | 35 |
| 13 | 66 | 34 |
| 14 | 66 | 34 |
| 15 | 66 | 34 |
| 16 | 67 | 33 |
| 17 | 68 | 32 |
| 18 | 68 | 32 |
| 19 | 69 | 31 |
| 20 | 69 | 31 |
| 21 | 69 | 31 |
| 22 | 70 | 30 |
| 23 | 71 | 29 |
| 24 | 72 | 28 |
| 25 | 72 | 28 |
| 26 | 72 | 28 |
| 27 | 73 | 27 |
| 28 | 73 | 27 |
| 29 | 73 | 27 |
| 30 | 74 | 26 |
| 31 | 74 | 26 |
Chance of precipitation in December
Futtsu gets around 73 mm of rain over 8.5 wet days in December, the driest month. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 27% and peaks near 35% 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 (%) | 35 | 35 | 35 | 34 | 34 | 33 | 33 | 32 | 31 | 31 | 30 | 30 | 29 | 28 | 28 | 27 | 26 | 25 | 25 | 24 | 23 | 23 | 23 | 22 | 22 | 21 | 21 | 21 | 20 | 20 | 20 |
| Rain chance (%) | |
|---|---|
| 1 | 35 |
| 2 | 35 |
| 3 | 35 |
| 4 | 34 |
| 5 | 34 |
| 6 | 33 |
| 7 | 33 |
| 8 | 32 |
| 9 | 31 |
| 10 | 31 |
| 11 | 30 |
| 12 | 30 |
| 13 | 29 |
| 14 | 28 |
| 15 | 28 |
| 16 | 27 |
| 17 | 26 |
| 18 | 25 |
| 19 | 25 |
| 20 | 24 |
| 21 | 23 |
| 22 | 23 |
| 23 | 23 |
| 24 | 22 |
| 25 | 22 |
| 26 | 21 |
| 27 | 21 |
| 28 | 21 |
| 29 | 20 |
| 30 | 20 |
| 31 | 20 |
Humidity in December
Most of December feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, December lands in the dry band about 98% 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 (%) | 95 | 95 | 95 | 96 | 96 | 96 | 96 | 97 | 98 | 98 | 98 | 98 | 99 | 99 | 99 | 99 | 99 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| Comfortable (%) | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Humid (%) | 1 | 1 | 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 |
| Dry (%) | Comfortable (%) | Humid (%) | |
|---|---|---|---|
| 1 | 95 | 4 | 1 |
| 2 | 95 | 4 | 1 |
| 3 | 95 | 4 | 1 |
| 4 | 96 | 3 | 1 |
| 5 | 96 | 3 | 1 |
| 6 | 96 | 3 | 1 |
| 7 | 96 | 3 | 1 |
| 8 | 97 | 3 | 0 |
| 9 | 98 | 2 | 0 |
| 10 | 98 | 2 | 0 |
| 11 | 98 | 2 | 0 |
| 12 | 98 | 2 | 0 |
| 13 | 99 | 1 | 0 |
| 14 | 99 | 1 | 0 |
| 15 | 99 | 1 | 0 |
| 16 | 99 | 1 | 0 |
| 17 | 99 | 1 | 0 |
| 18 | 100 | 0 | 0 |
| 19 | 100 | 0 | 0 |
| 20 | 100 | 0 | 0 |
| 21 | 100 | 0 | 0 |
| 22 | 100 | 0 | 0 |
| 23 | 100 | 0 | 0 |
| 24 | 100 | 0 | 0 |
| 25 | 100 | 0 | 0 |
| 26 | 100 | 0 | 0 |
| 27 | 100 | 0 | 0 |
| 28 | 100 | 0 | 0 |
| 29 | 100 | 0 | 0 |
| 30 | 100 | 0 | 0 |
| 31 | 100 | 0 | 0 |
Wind in December
Winds average 19 km/h in December.
Across December, daily wind ranges from about 19 km/h on the calmest days to 19 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) | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 |
| 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 | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 19 | light breeze |
| 2 | 19 | light breeze |
| 3 | 19 | light breeze |
| 4 | 19 | light breeze |
| 5 | 19 | light breeze |
| 6 | 19 | light breeze |
| 7 | 19 | light breeze |
| 8 | 19 | light breeze |
| 9 | 19 | light breeze |
| 10 | 19 | light breeze |
| 11 | 19 | light breeze |
| 12 | 19 | 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 | 19 | light breeze |
| 20 | 19 | light breeze |
| 21 | 19 | light breeze |
| 22 | 19 | light breeze |
| 23 | 19 | light breeze |
| 24 | 19 | light breeze |
| 25 | 19 | light breeze |
| 26 | 19 | light breeze |
| 27 | 19 | light breeze |
| 28 | 19 | light breeze |
| 29 | 19 | light breeze |
| 30 | 19 | light breeze |
| 31 | 19 | light breeze |
Sunrise & sunset in December
Daylight runs from about 9 h 48 min at the start of December to 9 h 36 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 12 minutes over December. Sunrise moves from 6:37 AM to 6:54 AM, and sunset from 4:24 PM to 4:33 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) | 9.8 | 9.8 | 9.8 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.7 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 | 9.6 |
| Sunrise (AM) | 6:37 | 6:38 | 6:38 | 6:39 | 6:40 | 6:41 | 6:42 | 6:42 | 6:43 | 6:44 | 6:45 | 6:45 | 6:46 | 6:47 | 6:47 | 6:48 | 6:49 | 6:49 | 6:50 | 6:50 | 6:51 | 6:51 | 6:52 | 6:52 | 6:53 | 6:53 | 6:53 | 6:54 | 6:54 | 6:54 | 6:54 |
| Sunset (PM) | 4:24 | 4:24 | 4:24 | 4:24 | 4:24 | 4:24 | 4:24 | 4:24 | 4:24 | 4:24 | 4:25 | 4:25 | 4:25 | 4:25 | 4:25 | 4:26 | 4:26 | 4:26 | 4:27 | 4:27 | 4:28 | 4:28 | 4:29 | 4:29 | 4:30 | 4:30 | 4:31 | 4:31 | 4:32 | 4:33 | 4:33 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 9.8 | 6:37 | 4:24 |
| 2 | 9.8 | 6:38 | 4:24 |
| 3 | 9.8 | 6:38 | 4:24 |
| 4 | 9.7 | 6:39 | 4:24 |
| 5 | 9.7 | 6:40 | 4:24 |
| 6 | 9.7 | 6:41 | 4:24 |
| 7 | 9.7 | 6:42 | 4:24 |
| 8 | 9.7 | 6:42 | 4:24 |
| 9 | 9.7 | 6:43 | 4:24 |
| 10 | 9.7 | 6:44 | 4:24 |
| 11 | 9.7 | 6:45 | 4:25 |
| 12 | 9.7 | 6:45 | 4:25 |
| 13 | 9.6 | 6:46 | 4:25 |
| 14 | 9.6 | 6:47 | 4:25 |
| 15 | 9.6 | 6:47 | 4:25 |
| 16 | 9.6 | 6:48 | 4:26 |
| 17 | 9.6 | 6:49 | 4:26 |
| 18 | 9.6 | 6:49 | 4:26 |
| 19 | 9.6 | 6:50 | 4:27 |
| 20 | 9.6 | 6:50 | 4:27 |
| 21 | 9.6 | 6:51 | 4:28 |
| 22 | 9.6 | 6:51 | 4:28 |
| 23 | 9.6 | 6:52 | 4:29 |
| 24 | 9.6 | 6:52 | 4:29 |
| 25 | 9.6 | 6:53 | 4:30 |
| 26 | 9.6 | 6:53 | 4:30 |
| 27 | 9.6 | 6:53 | 4:31 |
| 28 | 9.6 | 6:54 | 4:31 |
| 29 | 9.6 | 6:54 | 4:32 |
| 30 | 9.6 | 6:54 | 4:33 |
| 31 | 9.6 | 6:54 | 4:33 |
Solar energy in December
Average shortwave solar energy reaching the ground each day in December, about 2.28 kWh/m² — the year's lowest.
For context, solar energy here swings from a low near 2.28 kWh/m² to a high of 5.25 kWh/m² in May across the year — December's 2.28 kWh/m² sits near the bottom.
| 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) | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.2 | 2.3 | 2.3 | 2.3 | 2.3 | 2.3 | 2.3 | 2.3 | 2.3 | 2.3 | 2.4 | 2.4 | 2.4 | 2.4 | 2.4 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 | 2.5 |
| 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 | Moderate | Moderate | Moderate |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 2.2 | Moderate |
| 2 | 2.2 | Moderate |
| 3 | 2.2 | Moderate |
| 4 | 2.2 | Moderate |
| 5 | 2.2 | Moderate |
| 6 | 2.2 | Moderate |
| 7 | 2.2 | Moderate |
| 8 | 2.2 | Moderate |
| 9 | 2.2 | Moderate |
| 10 | 2.2 | Moderate |
| 11 | 2.2 | Moderate |
| 12 | 2.3 | Moderate |
| 13 | 2.3 | Moderate |
| 14 | 2.3 | Moderate |
| 15 | 2.3 | Moderate |
| 16 | 2.3 | Moderate |
| 17 | 2.3 | Moderate |
| 18 | 2.3 | Moderate |
| 19 | 2.3 | Moderate |
| 20 | 2.3 | Moderate |
| 21 | 2.4 | Moderate |
| 22 | 2.4 | Moderate |
| 23 | 2.4 | Moderate |
| 24 | 2.4 | Moderate |
| 25 | 2.4 | Moderate |
| 26 | 2.5 | Moderate |
| 27 | 2.5 | Moderate |
| 28 | 2.5 | Moderate |
| 29 | 2.5 | Moderate |
| 30 | 2.5 | Moderate |
| 31 | 2.5 | Moderate |
Hazard calendar for Futtsu
In December, Futtsu sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Futtsu sits in the Pacific typhoon belt; the season peaks July–October.
Is December a good time to visit Futtsu?
Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
December is a weaker month for outdoor sightseeing in Futtsu.
What to pack for Futtsu in December
From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In December, Futtsu sees daytime highs around 13°C and nights near 9°C. Worth packing: a warm layer and rain gear. About 9 days see rain.
Sea temperature near Futtsu in December
The nearest coast averages about 17°C in December — 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 26°C and coldest in February near 13°C.
It's comfortable for a long swim from Jun 5 to Nov 9 — about 5.2 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 15 | 13 | 14 | 16 | 18 | 21 | 24 | 26 | 25 | 22 | 20 | 17 |
| Comfort | Bracing | Bracing | Bracing | Cool | Cool | Refreshing | Refreshing | Warm | Warm | Refreshing | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 15 | Bracing |
| Feb | 13 | Bracing |
| Mar | 14 | Bracing |
| Apr | 16 | Cool |
| May | 18 | Cool |
| Jun | 21 | Refreshing |
| Jul | 24 | Refreshing |
| Aug | 26 | Warm |
| Sep | 25 | Warm |
| Oct | 22 | Refreshing |
| Nov | 20 | Cool |
| Dec | 17 | Cool |
UV index in Futtsu in December
Clear-sky midday UV in December peaks around 2. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Futtsu peaks around August 10 at about 10 (extreme) — 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 | 5 | 7 | 8 | 9 | 10 | 10 | 8 | 6 | 4 | 2 |
| Level | Moderate | Moderate | Moderate | High | Very high | Very high | Very high | Extreme | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Moderate |
| Feb | 4 | Moderate |
| Mar | 5 | Moderate |
| Apr | 7 | High |
| May | 8 | Very high |
| Jun | 9 | Very high |
| Jul | 10 | Very high |
| Aug | 10 | Extreme |
| Sep | 8 | Very high |
| Oct | 6 | High |
| Nov | 4 | Moderate |
| Dec | 2 | Moderate |
Air quality in Futtsu in December
Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.
Air quality in Futtsu is worst in April — around 26 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (December, 12 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) | 14 | 25 | 23 | 26 | 21 | 18 | 13 | 12 | 12 | 14 | 14 | 12 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 14 | Moderate |
| Feb | 25 | Moderate |
| Mar | 23 | Moderate |
| Apr | 26 | Moderate |
| May | 21 | Moderate |
| Jun | 18 | Moderate |
| Jul | 13 | Moderate |
| Aug | 12 | Moderate |
| Sep | 12 | Moderate |
| Oct | 14 | Moderate |
| Nov | 14 | Moderate |
| Dec | 12 | Good |
Where is Futtsu?
Futtsu sits at 35.3°N, 139.8°E, 5 m above sea level, in Japan. The nearest listed city is Kimitsu, 6.0 km away.
Topography around Futtsu
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Futtsu.
Within 3 km, the terrain around Futtsu has only modest variations in elevation — a maximum elevation change of 17 m around an average of 2 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 378 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,656 m.
The land around Futtsu is covered by water (62%) within 3 km, water (58%) and trees (23%) within 16 km, and water (46%), trees (26%) and artificial surfaces (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 Futtsu (35.3108°, 139.8188°, elevation 5 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).