Itoigawa, Niigata Climate
Japan
Pop. 40,765 Elev. 15 m / 49 ft
TZ: Asia/Tokyo (UTC+9) ·
Itoigawa sees mild summers peaking at 82°F (28°C) in August, and cold winters that bottom out around 30°F (-1°C) in February. Humidity pushes the summer feels-like temperature to 90°F (32°C), while wind chill can drive winter lows to 23°F (-5°C). Precipitation occurs on roughly 103 days per year (84.4 in / 2143 mm total), with snow on 44 days and 223 in (5663 mm) of annual accumulation. The city averages 63 sunny days per year and around 72 thunderstorm days. Ocean water temperatures reach 86°F (30°C) in summer.
| Temperature | 28°C (82°F) high | -1°C (30°F) low |
| Feels like | 32°C (90°F) high | -5°C (23°F) low |
| Rain | 103 days | 2143 mm (84.4 in) /yr |
| Snow | 44 days | 5663 mm (223.0 in) /yr |
| Sky | 63 sunny | 72 stormy |
| Wind | 1.2 m/s (2.7 mph) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: May, Jun, Jul
Sky & Air by Month
Cloud cover (%)
70
Jan 74
Feb 68
Mar 64
Apr 75
May 72
Jun 54
Jul 65
Aug 73
Sep 69
Oct 59
Nov 68
Dec Humidity (%)
83
Jan 83
Feb 75
Mar 73
Apr 78
May 80
Jun 81
Jul 79
Aug 80
Sep 79
Oct 74
Nov 80
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 72 km Toyama Kitokito Airport (TOY)
Ski resort 11 km 糸魚川シーサイドバレースキー場
National park 251 km 高鈴県立自然公園
Mountain peak
(1,591 m) 14 km 鬼ヶ面山
Hospital 2 km よしだ病院
Hiking trail 47 km 水平歩道
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 3°C 37°F | 0°C 32°F | 83 mm 3.3 in | 1444 mm56.9 in | 2 |
| February | 2°C 35°F | -1°C 30°F | 51 mm 2.0 in | 2070 mm81.5 in | 2 |
| March | 6°C 43°F | 2°C 35°F | 99 mm 3.9 in | 1007 mm39.6 in | 7 |
| April | 12°C 54°F | 7°C 45°F | 108 mm 4.2 in | 12 mm0.5 in | 5 |
| May | 17°C 62°F | 12°C 54°F | 146 mm 5.8 in | — | 3 |
| June | 22°C 72°F | 18°C 65°F | 212 mm 8.3 in | — | 6 |
| July | 27°C 81°F | 24°C 75°F | 108 mm 4.3 in | — | 10 |
| August | 28°C 82°F | 24°C 76°F | 366 mm 14.4 in | — | 5 |
| September | 25°C 77°F | 21°C 71°F | 280 mm 11.0 in | — | 3 |
| October | 18°C 65°F | 15°C 59°F | 306 mm 12.0 in | — | 6 |
| November | 12°C 53°F | 8°C 46°F | 166 mm 6.5 in | 51 mm2.0 in | 8 |
| December | 7°C 45°F | 3°C 37°F | 220 mm 8.7 in | 1080 mm42.5 in | 6 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 2 | 6 |
| February | 2 | 14 |
| March | 7 | 3 |
| April | 5 | 0 |
| May | 3 | 2 |
| June | 6 | 4 |
| July | 10 | 2 |
| August | 5 | 7 |
| September | 3 | 11 |
| October | 6 | 8 |
| November | 8 | 7 |
| December | 6 | 8 |
Water Temperatures Data
↑ See chart| Month | Ocean Avg High | Lake Avg High |
|---|---|---|
| January | 14°C 57°F | 6°C 43°F |
| February | 12°C 54°F | 5°C 40°F |
| March | 11°C 52°F | 4°C 40°F |
| April | 12°C 54°F | 6°C 43°F |
| May | 17°C 63°F | 10°C 50°F |
| June | 25°C 77°F | 16°C 61°F |
| July | 29°C 85°F | 25°C 77°F |
| August | 30°C 86°F | 27°C 80°F |
| September | 30°C 85°F | 25°C 77°F |
| October | 26°C 79°F | 20°C 67°F |
| November | 21°C 69°F | 13°C 56°F |
| December | 17°C 63°F | 9°C 49°F |