Iwai, Tokyo Climate
Japan
Pop. 16,958 Elev. 321 m / 1,053 ft
TZ: Asia/Tokyo (UTC+9) ·
Summers in Iwai are warm, with August highs around 89°F (32°C), while winters are cold with February lows of 29°F (-2°C). Humidity pushes the summer feels-like temperature to around 106°F (41°C). Expect around 81 rainy days annually (53.4 in / 1356 mm total), with snow on 5 days and 34 in (861 mm) of annual accumulation. The city averages 120 sunny days per year and around 31 thunderstorm days. Ocean water temperatures reach 82°F (28°C) in summer.
| Temperature | 32°C (89°F) high | -2°C (29°F) low |
| Feels like | 41°C (106°F) high | -2°C (29°F) low |
| Rain | 81 days | 1356 mm (53.4 in) /yr |
| Snow | 5 days | 861 mm (33.9 in) /yr |
| Sky | 120 sunny | 31 stormy |
| Wind | 0.6 m/s (1.4 mph) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Apr, Jul
Sky & Air by Month
Cloud cover (%)
31
Jan 34
Feb 62
Mar 59
Apr 83
May 75
Jun 59
Jul 65
Aug 68
Sep 79
Oct 43
Nov 35
Dec Humidity (%)
59
Jan 49
Feb 64
Mar 66
Apr 75
May 79
Jun 79
Jul 75
Aug 78
Sep 81
Oct 70
Nov 65
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 55 km Tokyo Haneda International Airport (HND)
Ski resort 47 km カムイみさかスキー場
National park 154 km 高鈴県立自然公園
Mountain peak
(1,576 m) 21 km 天目山
Hospital 0 km 利定会 大久野病院
Hiking trail 6 km KFT - TK6 - Sugi no kokage no michi
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 9°C 48°F | -1°C 30°F | 47 mm 1.9 in | 26 mm1.0 in | 20 |
| February | 9°C 48°F | -2°C 29°F | 18 mm 0.7 in | 66 mm2.6 in | 19 |
| March | 13°C 55°F | 3°C 38°F | 119 mm 4.7 in | 706 mm27.8 in | 10 |
| April | 18°C 65°F | 9°C 48°F | 138 mm 5.4 in | 56 mm2.2 in | 9 |
| May | 21°C 70°F | 13°C 56°F | 209 mm 8.2 in | — | 0 |
| June | 27°C 80°F | 20°C 67°F | 147 mm 5.8 in | — | 4 |
| July | 30°C 87°F | 23°C 73°F | 134 mm 5.3 in | — | 10 |
| August | 32°C 89°F | 24°C 75°F | 104 mm 4.1 in | — | 5 |
| September | 28°C 82°F | 21°C 69°F | 200 mm 7.9 in | — | 4 |
| October | 19°C 66°F | 14°C 56°F | 148 mm 5.8 in | — | 2 |
| November | 15°C 59°F | 5°C 41°F | 25 mm 1.0 in | 1 mm0.0 in | 16 |
| December | 10°C 51°F | 1°C 34°F | 65 mm 2.5 in | 7 mm0.3 in | 21 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 20 | 0 |
| February | 19 | 0 |
| March | 10 | 1 |
| April | 9 | 4 |
| May | 0 | 3 |
| June | 4 | 3 |
| July | 10 | 4 |
| August | 5 | 4 |
| September | 4 | 8 |
| October | 2 | 3 |
| November | 16 | 0 |
| December | 21 | 1 |
Water Temperatures Data
↑ See chart| Month | Ocean Avg High | Lake Avg High |
|---|---|---|
| January | 16°C 61°F | 7°C 45°F |
| February | 15°C 59°F | 6°C 43°F |
| March | 15°C 60°F | 8°C 46°F |
| April | 17°C 63°F | 13°C 55°F |
| May | 20°C 68°F | 19°C 66°F |
| June | 25°C 77°F | 24°C 76°F |
| July | 27°C 81°F | 29°C 84°F |
| August | 28°C 82°F | 30°C 86°F |
| September | 27°C 81°F | 27°C 81°F |
| October | 24°C 76°F | 20°C 68°F |
| November | 21°C 69°F | 14°C 57°F |
| December | 19°C 67°F | 10°C 51°F |