January −1° · ☂ 23 February 0° · ☂ 19 March 5° · ☂ 15 April 11° · ☂ 9 May 18° · ☂ 9 ★ June21° · ☂ 8 ★ July25° · ☂ 8 August 27° · ☂ 11 ★ September23° · ☂ 10 October 16° · ☂ 14 November 8° · ☂ 18 December 1° · ☂ 22 Otaru in July:comfortably warm, occasional rain Otaru, Japan · Records from 2006 to 2025. Not a forecast.
Mean high 25° Hottest day 32.9° (2025)
Mean low 18° Coldest night 10.3° (2018)
Rain days 8 days 1-12 by year
Rainfall 98mm Daylight 15.3 → 14.6 h
Otaru's 12 months i Best: June, July and September
1 2 3 4 5 6 7 8 9 10 11 12
Trip types Sightseeing on foot Goodmild
Humidity 85% 7 muggy days
Clear days 3 days 13 overcast days
Mean wind 11 km/h Rarely windy
Sunrise / sunset (15th) 04:09 / 19:14 Daylight 15.3 → 14.6 h
Otaru in July The Otaru Ushio Festival fills the harbour area in late July, starting July 24 in 2026. With the fewest wet days of the year, it is a good time to eat and relax by the harbour.
July in Otaru was on the warm side, averaging 25°C by day and 18°C at night. With about 8 rain days, showers were an occasional nuisance rather than the rule. Individual years ran between 1 and 12 rain days.
Daylight lasted 14.6 to 15.3 hours a day, so evenings stayed bright. About 1 day a month still climbed past 30°C, the ones where you looked for shade. July 2025 averaged 29.3°C by day, 4.1°C above the 20-year mean.
Typhoons i Typhoons: August to October
Date by date i Sun
Mon
Tue
Wed
Thu
Fri
Sat
Week
July 1 Thursday 1 rain in 7 of 20 yrs 7/20 23° 16° July 2 Friday 2 rain in 6 of 20 yrs 6/20 24° 16° July 3 Saturday 3 rain in 4 of 20 yrs 4/20 24° 16° 1-3 rain on 28% of days 24° 16°
July 4 Sunday 4 rain in 6 of 20 yrs 6/20 24° 16° July 5 Monday 5 rain in 5 of 20 yrs 5/20 24° 16° July 6 Tuesday 6 rain in 4 of 20 yrs 4/20 24° 17° July 7 Wednesday 7 rain in 3 of 20 yrs 3/20 24° 17° July 8 Thursday 8 rain in 2 of 20 yrs 2/20 24° 17° July 9 Friday 9 rain in 4 of 20 yrs 4/20 25° 17° July 10 Saturday 10 rain in 7 of 20 yrs 7/20 24° 17° 4-10 rain on 22% of days 24° 17°
July 11 Sunday 11 rain in 4 of 20 yrs 4/20 24° 17° July 12 Monday 12 rain in 8 of 20 yrs 8/20 24° 17° July 13 Tuesday 13 rain in 6 of 20 yrs 6/20 25° 17° July 14 Wednesday 14 rain in 4 of 20 yrs 4/20 25° 18° July 15 Thursday 15 rain in 5 of 20 yrs 5/20 25° 17° July 16 Friday 16 rain in 5 of 20 yrs 5/20 25° 18° July 17 Saturday 17 rain in 7 of 20 yrs 7/20 25° 18° 11-17 rain on 28% of days 25° 17°
July 18 Sunday 18 rain in 6 of 20 yrs 6/20 25° 18° July 19 Monday 19 rain in 6 of 20 yrs 6/20 25° 18° July 20 Tuesday 20 rain in 3 of 20 yrs 3/20 26° 18° July 21 Wednesday 21 rain in 2 of 20 yrs 2/20 26° 18° July 22 Thursday 22 rain in 7 of 20 yrs 7/20 26° 18° July 23 Friday 23 rain in 6 of 20 yrs 6/20 26° 18° July 24 Saturday 24 rain in 3 of 20 yrs 3/20 26° 18° 18-24 rain on 24% of days 26° 18°
July 25 Sunday 25 rain in 4 of 20 yrs 4/20 26° 19° July 26 Monday 26 rain in 4 of 20 yrs 4/20 26° 19° July 27 Tuesday 27 rain in 8 of 20 yrs 8/20 27° 19° July 28 Wednesday 28 rain in 6 of 20 yrs 6/20 27° 20° July 29 Thursday 29 rain in 3 of 20 yrs 3/20 27° 20° July 30 Friday 30 rain in 2 of 20 yrs 2/20 28° 20° July 31 Saturday 31 rain in 6 of 20 yrs 6/20 27° 20° 25-31 rain on 24% of days 27° 19°
1-3 rain on 28% of days 24° 16° 4-10 rain on 22% of days 24° 17° 11-17 rain on 28% of days 25° 17° 18-24 rain on 24% of days 26° 18° 25-31 rain on 24% of days 27° 19°
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Week
July 1 Saturday 1 rain in 7 of 20 yrs 7/20 23° 16° July 1 rain on 35% of days 23° 16°
July 2 Sunday 2 rain in 6 of 20 yrs 6/20 24° 16° July 3 Monday 3 rain in 4 of 20 yrs 4/20 24° 16° July 4 Tuesday 4 rain in 6 of 20 yrs 6/20 24° 16° July 5 Wednesday 5 rain in 5 of 20 yrs 5/20 24° 16° July 6 Thursday 6 rain in 4 of 20 yrs 4/20 24° 17° July 7 Friday 7 rain in 3 of 20 yrs 3/20 24° 17° July 8 Saturday 8 rain in 2 of 20 yrs 2/20 24° 17° 2-8 rain on 21% of days 24° 16°
July 9 Sunday 9 rain in 4 of 20 yrs 4/20 25° 17° July 10 Monday 10 rain in 7 of 20 yrs 7/20 24° 17° July 11 Tuesday 11 rain in 4 of 20 yrs 4/20 24° 17° July 12 Wednesday 12 rain in 8 of 20 yrs 8/20 24° 17° July 13 Thursday 13 rain in 6 of 20 yrs 6/20 25° 17° July 14 Friday 14 rain in 4 of 20 yrs 4/20 25° 18° July 15 Saturday 15 rain in 5 of 20 yrs 5/20 25° 17° 9-15 rain on 27% of days 25° 17°
July 16 Sunday 16 rain in 5 of 20 yrs 5/20 25° 18° July 17 Monday 17 rain in 7 of 20 yrs 7/20 25° 18° July 18 Tuesday 18 rain in 6 of 20 yrs 6/20 25° 18° July 19 Wednesday 19 rain in 6 of 20 yrs 6/20 25° 18° July 20 Thursday 20 rain in 3 of 20 yrs 3/20 26° 18° July 21 Friday 21 rain in 2 of 20 yrs 2/20 26° 18° July 22 Saturday 22 rain in 7 of 20 yrs 7/20 26° 18° 16-22 rain on 26% of days 25° 18°
July 23 Sunday 23 rain in 6 of 20 yrs 6/20 26° 18° July 24 Monday 24 rain in 3 of 20 yrs 3/20 26° 18° July 25 Tuesday 25 rain in 4 of 20 yrs 4/20 26° 19° July 26 Wednesday 26 rain in 4 of 20 yrs 4/20 26° 19° July 27 Thursday 27 rain in 8 of 20 yrs 8/20 27° 19° July 28 Friday 28 rain in 6 of 20 yrs 6/20 27° 20° July 29 Saturday 29 rain in 3 of 20 yrs 3/20 27° 20° 23-29 rain on 24% of days 26° 19°
July 30 Sunday 30 rain in 2 of 20 yrs 2/20 28° 20° July 31 Monday 31 rain in 6 of 20 yrs 6/20 27° 20°
30-31 rain on 20% of days 27° 20°
July 1 rain on 35% of days 23° 16° 2-8 rain on 21% of days 24° 16° 9-15 rain on 27% of days 25° 17° 16-22 rain on 26% of days 25° 18° 23-29 rain on 24% of days 26° 19° 30-31 rain on 20% of days 27° 20°
Tap another date to change
2006 17mm
2007 3mm
2008 none
2009 none
2010 40mm
2011 9mm
2012 22mm
2013 none
2014 none
2015 none
2016 none
2017 none
2018 none
2019 7mm
2020 none
2021 none
2022 none
2023 3mm
2024 2mm
2025 none
Holidays in July (2027) July 19 Marine DayJuly 3 to July 5 Independence Day weekend 1 Local public holiday or break (busier, pricier)1 US holidays (flights fill up)
Day by day temperature i 15° 21° 28° 34° 1 8 15 22 29 31
Your trip dates, the past 20 years Trip dates July 1 (Thu) 2 (Fri) 3 (Sat) 4 (Sun) 5 (Mon) 6 (Tue) 7 (Wed) 8 (Thu) 9 (Fri) 10 (Sat) 11 (Sun) 12 (Mon) 13 (Tue) 14 (Wed) 15 (Thu) 16 (Fri) 17 (Sat) 18 (Sun) 19 (Mon) 20 (Tue) 21 (Wed) 22 (Thu) 23 (Fri) 24 (Sat) 25 (Sun) 26 (Mon) 27 (Tue) 28 (Wed) 29 (Thu) 30 (Fri) 31 (Sat) ~ July 1 (Thu) 2 (Fri) 3 (Sat) 4 (Sun) 5 (Mon) 6 (Tue) 7 (Wed) 8 (Thu) 9 (Fri) 10 (Sat) 11 (Sun) 12 (Mon) 13 (Tue) 14 (Wed) 15 (Thu) 16 (Fri) 17 (Sat) 18 (Sun) 19 (Mon) 20 (Tue) 21 (Wed) 22 (Thu) 23 (Fri) 24 (Sat) 25 (Sun) 26 (Mon) 27 (Tue) 28 (Wed) 29 (Thu) 30 (Fri) 31 (Sat) 1-7 8-14 15-21 22-end Whole month
You can also click two dates on the axis. Hover a cell to see that day's rain. By year Driest trips first
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
Trip rain days Month rain days Tap a date to start, tap another to end. Each cell is that date in one year. '06 '07 '08 '09 '10 '11 '12 '13 '14 '15 '16 '17 '18 '19 '20 '21 '22 '23 '24 '25
of 20 Dates outside your trip are dimmed.
One row per year, one cell per day. 2021 had 1 rain day, 2009 had 12.
Common questions Does it rain a lot in Otaru in July? Over the past 20 years July averaged 8 rain days (1 mm or more) out of 31. Individual years ran from 1 in the driest to 12 in the wettest.
What should I wear in Otaru in July? Days averaged 25°C and nights 18°C. Pack a compact umbrella, a light layer for the evenings, T-shirts, and sunscreen plus a hat.
Is July a good time to visit Otaru? On warmth and rain days alone, Otaru's easiest months were June, July and September. July ranked first of 12.
Is Otaru humid in July? Mean relative humidity was 85%, with about 7 muggy days (dew point of 20°C or more) in the month.
Previous month Otaru in June Next month Otaru in August Whole year Otaru weather by month Where to go July By country Japan: all cities this month