Climate guideThirty-year normals for Ami
Ami climate by month
Humid subtropical · CfaBest Apr · Oct–Nov
Annual mean15°day and night
Seasonal swing23°warmest vs coolest
Precipitation1,383 mm149 wet days a year
36.03° N, 140.20° EElevation 30 mUTC+9 · Japan Standard Time
When to goAmi · weather score
Best timeApr · Oct–Nov
October: high / low21° / 14°
iSummary
What the weather is like
Ami has a humid subtropical climate (Köppen Cfa): rain spread through the year and no real dry season.
The warmest month is August, when afternoons average 30° and nights 23°. January is the coolest month, with highs of 8° and lows of -1°. The difference between the warmest and the coolest month is about 23°, a large swing typical of continental interiors.
About 1,383 mm of precipitation falls in an average year. July is the wettest month (138 mm, 21 wet days) and December the driest (46 mm, 5 wet days). Cloud cover ranges from 25% in December to 60% in June.
Compared with Tokyo, the capital, Ami is 0.6° warmer on a August afternoon and receives less precipitation over the year.
Year in figures
- Hottest afternoons
- 30° · August
- Coldest nights
- -1° · January
- Wettest month
- July
- Driest month
- December
- Clearest skies
- December · 25% cloud
- Longest day
- 14 h 35 min
- Shortest day
- 9 h 44 min
iiCharts
Twelve months at a glance
Temperature and precipitation
Daily high/low range bars, monthly precipitation columnsTemperature curve
Average high, lowDaylight
Hours between sunrise and sunset on the 15th of each monthiiiData table
Climate normals month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average high | 8° | 9° | 12° | 18° | 22° | 25° | 28° | 30° | 26° | 21° | 15° | 10° |
| Average low | -1° | 0° | 3° | 9° | 14° | 18° | 22° | 23° | 20° | 14° | 7° | 2° |
| Precipitation | 49 mm | 51 mm | 93 mm | 115 mm | 130 mm | 165 mm | 138 mm | 140 mm | 193 mm | 182 mm | 81 mm | 46 mm |
| Wet days (≥1 mm) | 5.8 | 5.5 | 10.2 | 12.7 | 15 | 15 | 20.5 | 18.8 | 18 | 14 | 8 | 5.3 |
| Cloud cover | 26% | 32% | 42% | 44% | 51% | 60% | 53% | 40% | 46% | 42% | 35% | 25% |
| Daylight | 9h 58 | 10h 52 | 11h 55 | 13h 05 | 14h 03 | 14h 35 | 14h 23 | 13h 34 | 12h 27 | 11h 20 | 10h 17 | 9h 44 |
| Month score | 44 | 44 | 40 | 62 | 58 | 54 | 44 | 42 | 56 | 62 | 65 | 48 |
ivMonth by month
Ami in every month
January44
8° / -1°
49 mm · 5.8 wet days
February44
9° / 0°
51 mm · 5.5 wet days
March40
12° / 3°
93 mm · 10.2 wet days
April62
18° / 9°
115 mm · 12.7 wet days
May58
22° / 14°
130 mm · 15 wet days
June54
25° / 18°
165 mm · 15 wet days
July44
28° / 22°
138 mm · 20.5 wet days
August42
30° / 23°
140 mm · 18.8 wet days
September56
26° / 20°
193 mm · 18 wet days
October62
21° / 14°
182 mm · 14 wet days
November65
15° / 7°
81 mm · 8 wet days
December48
10° / 2°
46 mm · 5.3 wet days