Tateyama weather in April
In April, Tateyama sees average daytime highs of 16°C and overnight lows near 14°C, with 135 mm of rain across 11.6 wet days and about 12.9 hours of daylight. It is the 8th-warmest and 8th-wettest month of the year here.
Highs climb over the month, from about 15°C in the first days to 18°C by the end. The sky is clear or mostly clear about 35% of the time in April, and the air most often feels dry.
Daylight stretches from about 12 h 18 min at the start of April to 13 h 24 min by month's end. Set against the rest of the year, April is Tateyama's 7th-clearest and 5th-windiest month. For the whole year in context, see Tateyama's year-round climate.
- Daytime high
- 16°
- 8th warmest
- Overnight low
- 14°
- 5th coldest
- Rainfall
- 135 mm
- 11.6 wet days
- Daylight
- 12 h 54 min
- 5:14 AM – 6:07 PM
- Cloud cover
- 59%
- 7th clearest
- Wind
- 25 km/h
- 5th windiest
- Solar energy
- 4.97 kWh/m²
- Travel score
- 5.0
- out of 10
Tateyama is city in Chiba Prefecture, Japan.
- Density
- 455/km²
- people per km²
- Founded
- 1939
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in April
Highs climb over the month, from about 15°C in the first days to 18°C by the end.
A typical April day in Tateyama reaches about 16°C in the afternoon and slips back to 14°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 18°C. Set against its neighbours, April runs about 3°C warmer than March and about 3°C cooler than May.
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 15 | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 18 | 18 | 18 | 18 |
| Avg low (°C) | 11 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 16 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 15 | 11 |
| 2 | 15 | 12 |
| 3 | 15 | 12 |
| 4 | 15 | 12 |
| 5 | 15 | 12 |
| 6 | 16 | 12 |
| 7 | 16 | 12 |
| 8 | 16 | 12 |
| 9 | 16 | 13 |
| 10 | 16 | 13 |
| 11 | 16 | 13 |
| 12 | 16 | 13 |
| 13 | 16 | 13 |
| 14 | 16 | 13 |
| 15 | 16 | 13 |
| 16 | 17 | 14 |
| 17 | 17 | 14 |
| 18 | 17 | 14 |
| 19 | 17 | 14 |
| 20 | 17 | 14 |
| 21 | 17 | 14 |
| 22 | 17 | 15 |
| 23 | 17 | 15 |
| 24 | 17 | 15 |
| 25 | 17 | 15 |
| 26 | 18 | 15 |
| 27 | 18 | 15 |
| 28 | 18 | 15 |
| 29 | 18 | 15 |
| 30 | 18 | 16 |
Tateyama weather by month
How April compares with the rest of the year at a glance. April is the 8th-warmest and 8th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 11° / 8° | 96 | 9.5 | 9.9 | 3.0 |
| Feb | 11° / 8° | 96 | 9.9 | 10.7 | 2.9 |
| Mar | 14° / 10° | 162 | 14.1 | 11.7 | 3.6 |
| Apr | 16° / 14° | 135 | 11.6 | 12.9 | 5.0 |
| May | 19° / 17° | 148 | 10.9 | 13.8 | 6.0 |
| Jun | 22° / 20° | 210 | 13 | 14.3 | 5.8 |
| Jul | 25° / 23° | 146 | 10.7 | 14.1 | 6.6 |
| Aug | 26° / 25° | 100 | 9 | 13.3 | 6.8 |
| Sep | 25° / 23° | 195 | 13.3 | 12.2 | 6.2 |
| Oct | 22° / 19° | 241 | 13.5 | 11.1 | 6.1 |
| Nov | 18° / 15° | 138 | 11.9 | 10.2 | 5.6 |
| Dec | 14° / 10° | 88 | 10.1 | 9.7 | 4.2 |
Cloud cover in April
The sky is clear or mostly clear about 35% of the time in April.
Beyond those clear spells, partly cloudy skies cover about 12% of April, with mostly cloudy or overcast conditions the remaining 53%.
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 49 | 50 | 50 | 50 | 50 | 50 | 50 | 49 | 48 | 48 | 48 | 48 | 47 | 47 | 46 | 46 | 46 | 45 | 46 | 46 | 46 | 45 | 46 | 46 | 47 | 46 | 46 | 45 | 45 | 45 |
| Cloudier (%) | 51 | 50 | 50 | 50 | 50 | 50 | 50 | 51 | 52 | 52 | 52 | 52 | 53 | 53 | 54 | 54 | 54 | 55 | 54 | 54 | 54 | 55 | 54 | 54 | 53 | 54 | 54 | 55 | 55 | 55 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 49 | 51 |
| 2 | 50 | 50 |
| 3 | 50 | 50 |
| 4 | 50 | 50 |
| 5 | 50 | 50 |
| 6 | 50 | 50 |
| 7 | 50 | 50 |
| 8 | 49 | 51 |
| 9 | 48 | 52 |
| 10 | 48 | 52 |
| 11 | 48 | 52 |
| 12 | 48 | 52 |
| 13 | 47 | 53 |
| 14 | 47 | 53 |
| 15 | 46 | 54 |
| 16 | 46 | 54 |
| 17 | 46 | 54 |
| 18 | 45 | 55 |
| 19 | 46 | 54 |
| 20 | 46 | 54 |
| 21 | 46 | 54 |
| 22 | 45 | 55 |
| 23 | 46 | 54 |
| 24 | 46 | 54 |
| 25 | 47 | 53 |
| 26 | 46 | 54 |
| 27 | 46 | 54 |
| 28 | 45 | 55 |
| 29 | 45 | 55 |
| 30 | 45 | 55 |
Chance of precipitation in April
Tateyama gets around 135 mm of rain over 11.6 wet days in April. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 39% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 43 | 43 | 43 | 43 | 43 | 42 | 42 | 41 | 41 | 40 | 40 | 40 | 39 | 39 | 39 | 39 | 39 | 39 | 39 | 38 | 38 | 37 | 37 | 37 | 36 | 36 | 35 | 35 | 34 | 33 |
| Rain chance (%) | |
|---|---|
| 1 | 43 |
| 2 | 43 |
| 3 | 43 |
| 4 | 43 |
| 5 | 43 |
| 6 | 42 |
| 7 | 42 |
| 8 | 41 |
| 9 | 41 |
| 10 | 40 |
| 11 | 40 |
| 12 | 40 |
| 13 | 39 |
| 14 | 39 |
| 15 | 39 |
| 16 | 39 |
| 17 | 39 |
| 18 | 39 |
| 19 | 39 |
| 20 | 38 |
| 21 | 38 |
| 22 | 37 |
| 23 | 37 |
| 24 | 37 |
| 25 | 36 |
| 26 | 36 |
| 27 | 35 |
| 28 | 35 |
| 29 | 34 |
| 30 | 33 |
Humidity in April
Most of April feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, April lands in the dry band about 72% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 90 | 89 | 87 | 86 | 85 | 84 | 83 | 81 | 80 | 79 | 79 | 77 | 76 | 75 | 74 | 73 | 72 | 71 | 68 | 68 | 66 | 65 | 63 | 61 | 59 | 57 | 54 | 52 | 51 | 49 |
| Comfortable (%) | 9 | 10 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 19 | 20 | 21 | 21 | 22 | 23 | 23 | 24 | 25 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 33 | 34 |
| Humid (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 3 | 3 | 4 | 4 | 4 | 5 | 5 | 6 | 6 | 7 | 7 | 8 | 9 | 10 | 11 | 13 | 14 | 15 | 17 |
| Muggy (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | |
|---|---|---|---|---|
| 1 | 90 | 9 | 1 | 0 |
| 2 | 89 | 10 | 1 | 0 |
| 3 | 87 | 12 | 1 | 0 |
| 4 | 86 | 13 | 1 | 0 |
| 5 | 85 | 14 | 1 | 0 |
| 6 | 84 | 15 | 1 | 0 |
| 7 | 83 | 16 | 1 | 0 |
| 8 | 81 | 17 | 2 | 0 |
| 9 | 80 | 18 | 2 | 0 |
| 10 | 79 | 19 | 2 | 0 |
| 11 | 79 | 19 | 2 | 0 |
| 12 | 77 | 20 | 3 | 0 |
| 13 | 76 | 21 | 3 | 0 |
| 14 | 75 | 21 | 4 | 0 |
| 15 | 74 | 22 | 4 | 0 |
| 16 | 73 | 23 | 4 | 0 |
| 17 | 72 | 23 | 5 | 0 |
| 18 | 71 | 24 | 5 | 0 |
| 19 | 68 | 25 | 6 | 1 |
| 20 | 68 | 25 | 6 | 1 |
| 21 | 66 | 26 | 7 | 1 |
| 22 | 65 | 27 | 7 | 1 |
| 23 | 63 | 28 | 8 | 1 |
| 24 | 61 | 29 | 9 | 1 |
| 25 | 59 | 30 | 10 | 1 |
| 26 | 57 | 31 | 11 | 1 |
| 27 | 54 | 32 | 13 | 1 |
| 28 | 52 | 33 | 14 | 1 |
| 29 | 51 | 33 | 15 | 1 |
| 30 | 49 | 34 | 17 | 1 |
Wind in April
Winds average 25 km/h in April.
Across April, daily wind ranges from about 24 km/h on the calmest days to 26 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 26 | 26 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 |
| Feels | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 26 | breezy |
| 2 | 26 | breezy |
| 3 | 26 | breezy |
| 4 | 26 | breezy |
| 5 | 26 | breezy |
| 6 | 26 | breezy |
| 7 | 25 | breezy |
| 8 | 25 | breezy |
| 9 | 25 | breezy |
| 10 | 25 | breezy |
| 11 | 25 | breezy |
| 12 | 25 | breezy |
| 13 | 25 | breezy |
| 14 | 25 | breezy |
| 15 | 25 | breezy |
| 16 | 25 | breezy |
| 17 | 25 | breezy |
| 18 | 25 | breezy |
| 19 | 25 | breezy |
| 20 | 25 | breezy |
| 21 | 25 | breezy |
| 22 | 24 | breezy |
| 23 | 24 | breezy |
| 24 | 24 | breezy |
| 25 | 24 | breezy |
| 26 | 24 | breezy |
| 27 | 24 | breezy |
| 28 | 24 | breezy |
| 29 | 24 | breezy |
| 30 | 24 | breezy |
Sunrise & sunset in April
Daylight runs from about 12 h 18 min at the start of April to 13 h 24 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 66 minutes over April. Sunrise moves from 5:35 AM to 4:57 AM, and sunset from 5:55 PM to 6:19 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 12.3 | 12.4 | 12.4 | 12.4 | 12.5 | 12.5 | 12.6 | 12.6 | 12.6 | 12.7 | 12.7 | 12.7 | 12.8 | 12.8 | 12.8 | 12.9 | 12.9 | 13.0 | 13.0 | 13.0 | 13.1 | 13.1 | 13.1 | 13.2 | 13.2 | 13.2 | 13.3 | 13.3 | 13.3 | 13.4 |
| Sunrise (AM) | 5:35 | 5:34 | 5:32 | 5:31 | 5:30 | 5:28 | 5:27 | 5:25 | 5:24 | 5:23 | 5:21 | 5:20 | 5:18 | 5:17 | 5:16 | 5:14 | 5:13 | 5:12 | 5:10 | 5:09 | 5:08 | 5:07 | 5:05 | 5:04 | 5:03 | 5:02 | 5:01 | 4:59 | 4:58 | 4:57 |
| Sunset (PM) | 5:55 | 5:56 | 5:57 | 5:57 | 5:58 | 5:59 | 6:00 | 6:01 | 6:01 | 6:02 | 6:03 | 6:04 | 6:05 | 6:06 | 6:06 | 6:07 | 6:08 | 6:09 | 6:10 | 6:10 | 6:11 | 6:12 | 6:13 | 6:14 | 6:14 | 6:15 | 6:16 | 6:17 | 6:18 | 6:19 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.3 | 5:35 | 5:55 |
| 2 | 12.4 | 5:34 | 5:56 |
| 3 | 12.4 | 5:32 | 5:57 |
| 4 | 12.4 | 5:31 | 5:57 |
| 5 | 12.5 | 5:30 | 5:58 |
| 6 | 12.5 | 5:28 | 5:59 |
| 7 | 12.6 | 5:27 | 6:00 |
| 8 | 12.6 | 5:25 | 6:01 |
| 9 | 12.6 | 5:24 | 6:01 |
| 10 | 12.7 | 5:23 | 6:02 |
| 11 | 12.7 | 5:21 | 6:03 |
| 12 | 12.7 | 5:20 | 6:04 |
| 13 | 12.8 | 5:18 | 6:05 |
| 14 | 12.8 | 5:17 | 6:06 |
| 15 | 12.8 | 5:16 | 6:06 |
| 16 | 12.9 | 5:14 | 6:07 |
| 17 | 12.9 | 5:13 | 6:08 |
| 18 | 13.0 | 5:12 | 6:09 |
| 19 | 13.0 | 5:10 | 6:10 |
| 20 | 13.0 | 5:09 | 6:10 |
| 21 | 13.1 | 5:08 | 6:11 |
| 22 | 13.1 | 5:07 | 6:12 |
| 23 | 13.1 | 5:05 | 6:13 |
| 24 | 13.2 | 5:04 | 6:14 |
| 25 | 13.2 | 5:03 | 6:14 |
| 26 | 13.2 | 5:02 | 6:15 |
| 27 | 13.3 | 5:01 | 6:16 |
| 28 | 13.3 | 4:59 | 6:17 |
| 29 | 13.3 | 4:58 | 6:18 |
| 30 | 13.4 | 4:57 | 6:19 |
Solar energy in April
Average shortwave solar energy reaching the ground each day in April, about 4.97 kWh/m².
For context, solar energy here swings from a low near 2.31 kWh/m² to a high of 5.41 kWh/m² in May across the year — April's 4.97 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 4.6 | 4.6 | 4.6 | 4.7 | 4.7 | 4.7 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.9 | 4.9 | 4.9 | 4.9 | 5.0 | 5.0 | 5.0 | 5.0 | 5.1 | 5.1 | 5.1 | 5.2 | 5.2 | 5.2 | 5.3 | 5.3 | 5.3 | 5.3 |
| 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 |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 4.6 | Bright |
| 2 | 4.6 | Bright |
| 3 | 4.6 | Bright |
| 4 | 4.7 | Bright |
| 5 | 4.7 | Bright |
| 6 | 4.7 | Bright |
| 7 | 4.8 | Bright |
| 8 | 4.8 | Bright |
| 9 | 4.8 | Bright |
| 10 | 4.8 | Bright |
| 11 | 4.8 | Bright |
| 12 | 4.8 | Bright |
| 13 | 4.9 | Bright |
| 14 | 4.9 | Bright |
| 15 | 4.9 | Bright |
| 16 | 4.9 | Bright |
| 17 | 5.0 | Bright |
| 18 | 5.0 | Bright |
| 19 | 5.0 | Bright |
| 20 | 5.0 | Bright |
| 21 | 5.1 | Bright |
| 22 | 5.1 | Bright |
| 23 | 5.1 | Bright |
| 24 | 5.2 | Bright |
| 25 | 5.2 | Bright |
| 26 | 5.2 | Bright |
| 27 | 5.3 | Bright |
| 28 | 5.3 | Bright |
| 29 | 5.3 | Bright |
| 30 | 5.3 | Bright |
Hazard calendar for Tateyama
In April, Tateyama sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Tateyama sits in the Pacific typhoon belt; the season peaks July–October.
Is April a good time to visit Tateyama?
Our two travel scores rate April for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
April is a reasonable time to visit Tateyama for sightseeing.
What to pack for Tateyama in April
From April's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In April, Tateyama sees daytime highs around 16°C and nights near 14°C. Worth packing: a warm layer, rain gear, sun protection and a windbreaker. About 12 days see rain.
Sea temperature near Tateyama in April
The nearest coast averages about 17°C in April — 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 16°C.
It's comfortable for a long swim from May 25 to Dec 4 — about 6.4 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 17 | 16 | 16 | 17 | 19 | 22 | 24 | 26 | 26 | 24 | 22 | 19 |
| Comfort | Cool | Cool | Cool | Cool | Cool | Refreshing | Refreshing | Warm | Warm | Refreshing | Refreshing | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 17 | Cool |
| Feb | 16 | Cool |
| Mar | 16 | Cool |
| Apr | 17 | Cool |
| May | 19 | Cool |
| Jun | 22 | Refreshing |
| Jul | 24 | Refreshing |
| Aug | 26 | Warm |
| Sep | 26 | Warm |
| Oct | 24 | Refreshing |
| Nov | 22 | Refreshing |
| Dec | 19 | Cool |
UV index in Tateyama in April
Clear-sky midday UV in April peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Tateyama peaks around August 10 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 3 (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) | 3 | 4 | 5 | 7 | 9 | 10 | 10 | 10 | 8 | 6 | 4 | 3 |
| Level | Moderate | Moderate | Moderate | High | Very high | Very high | Extreme | Extreme | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 3 | Moderate |
| Feb | 4 | Moderate |
| Mar | 5 | Moderate |
| Apr | 7 | High |
| May | 9 | Very high |
| Jun | 10 | Very high |
| Jul | 10 | Extreme |
| Aug | 10 | Extreme |
| Sep | 8 | Very high |
| Oct | 6 | High |
| Nov | 4 | Moderate |
| Dec | 3 | Moderate |
Air quality in Tateyama in April
Average fine-particle pollution (PM2.5) through the year — so you can see where April falls, not just the annual average.
Air quality in Tateyama 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 Tateyama?
Tateyama sits at 35.0°N, 139.9°E, 7 m above sea level, in Japan. The nearest listed city is Minamibōsō, 8.0 km away.
Topography around Tateyama
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Tateyama.
Within 3 km, the terrain around Tateyama has only modest variations in elevation — a maximum elevation change of 159 m around an average of 31 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 354 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,372 m.
The land around Tateyama is covered by trees (45%) and artificial surfaces (26%) within 3 km, water (59%) and trees (32%) within 16 km, and water (66%) 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 Tateyama (34.9833°, 139.8667°, elevation 7 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).