January 10° · ☂ 5 February 11° · ☂ 7 March 15° · ☂ 9 April 20° · ☂ 9 ★ May24° · ☂ 8 June 27° · ☂ 11 July 31° · ☂ 11 August 33° · ☂ 8 September 30° · ☂ 9 ★ October24° · ☂ 7 November 18° · ☂ 6 December 12° · ☂ 7 Hiroshima in January:chilly, occasional rain Hiroshima, Japan · Records from 2006 to 2025. Not a forecast.
Mean high 10° Hottest day 17° (2016)
Mean low 2° Coldest night −4.9° (2017)
Rain days 5 days 1-10 by year
Rainfall 46mm Daylight 9.9 → 10.5 h
Hiroshima's 12 months i Best: May and October
1 2 3 4 5 6 7 8 9 10 11 12
Trip types Sightseeing on foot Finemostly dry
Humidity 70% 0 muggy days
Clear days 3 days 7 overcast days
Mean wind 9 km/h Rarely windy
Sunrise / sunset (15th) 07:16 / 17:22 Daylight 9.9 → 10.5 h
Hiroshima in January Clear days continue and snow is rare. The wind off the sea is cold. Some shops close for the first three days of the year. The area around Peace Memorial Park is quiet for walking.
Days averaged 10°C and nights 2°C, cool enough that outdoor sightseeing called for a layer. Out of 31 days, about 5 brought rain; the rest stayed dry. The driest year, 2011, had 1 rain day; the wettest, 2024, had 10.
Days were short. Daylight grew from 9.9 to 10.5 hours across the month, so plan outdoor sights early. Nights dropped below 0°C on 6 days of the month on average, so early-morning paths could be icy. The warmest year was 2020, with highs averaging 12.3°C, 2.3°C above normal. Cold snaps happened: the record low for January was −4.9°C, set in 2017.
Typhoons i Typhoons: May to October
Date by date i Sun
Mon
Tue
Wed
Thu
Fri
Sat
Week
January 1 Friday 1 rain in 2 of 20 yrs 2/20 9° 2° January 2 Saturday 2 rain in 1 of 20 yrs 1/20 11° 2° 1-2 rain on 8% of days 10° 2°
January 3 Sunday 3 rain in 1 of 20 yrs 1/20 11° 2° January 4 Monday 4 rain in 1 of 20 yrs 1/20 11° 2° January 5 Tuesday 5 rain in 0 of 20 yrs 0/20 11° 2° January 6 Wednesday 6 rain in 2 of 20 yrs 2/20 11° 2° January 7 Thursday 7 rain in 4 of 20 yrs 4/20 10° 2° January 8 Friday 8 rain in 4 of 20 yrs 4/20 10° 2° January 9 Saturday 9 rain in 1 of 20 yrs 1/20 10° 2° 3-9 rain on 9% of days 11° 2°
January 10 Sunday 10 rain in 2 of 20 yrs 2/20 10° 2° January 11 Monday 11 rain in 1 of 20 yrs 1/20 10° 2° January 12 Tuesday 12 rain in 2 of 20 yrs 2/20 10° 2° January 13 Wednesday 13 rain in 3 of 20 yrs 3/20 9° 2° January 14 Thursday 14 rain in 5 of 20 yrs 5/20 10° 2° January 15 Friday 15 rain in 3 of 20 yrs 3/20 10° 2° January 16 Saturday 16 rain in 2 of 20 yrs 2/20 10° 1° 10-16 rain on 13% of days 10° 2°
January 17 Sunday 17 rain in 4 of 20 yrs 4/20 10° 2° January 18 Monday 18 rain in 3 of 20 yrs 3/20 11° 2° January 19 Tuesday 19 rain in 3 of 20 yrs 3/20 10° 2° January 20 Wednesday 20 rain in 6 of 20 yrs 6/20 10° 3° January 21 Thursday 21 rain in 5 of 20 yrs 5/20 10° 2° January 22 Friday 22 rain in 7 of 20 yrs 7/20 10° 3° January 23 Saturday 23 rain in 8 of 20 yrs 8/20 10° 2° 17-23 rain on 26% of days 10° 2°
January 24 Sunday 24 rain in 5 of 20 yrs 5/20 9° 1° January 25 Monday 25 rain in 3 of 20 yrs 3/20 9° 1° January 26 Tuesday 26 rain in 5 of 20 yrs 5/20 9° 1° January 27 Wednesday 27 rain in 3 of 20 yrs 3/20 10° 2° January 28 Thursday 28 rain in 4 of 20 yrs 4/20 10° 1° January 29 Friday 29 rain in 5 of 20 yrs 5/20 10° 2° January 30 Saturday 30 rain in 4 of 20 yrs 4/20 10° 3° 24-30 rain on 21% of days 10° 1°
January 31 Sunday 31 rain in 4 of 20 yrs 4/20 10° 2°
January 31 rain on 20% of days 10° 2°
1-2 rain on 8% of days 10° 2° 3-9 rain on 9% of days 11° 2° 10-16 rain on 13% of days 10° 2° 17-23 rain on 26% of days 10° 2° 24-30 rain on 21% of days 10° 1° January 31 rain on 20% of days 10° 2°
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Week
January 1 Saturday 1 rain in 2 of 20 yrs 2/20 9° 2° January 1 rain on 10% of days 9° 2°
January 2 Sunday 2 rain in 1 of 20 yrs 1/20 11° 2° January 3 Monday 3 rain in 1 of 20 yrs 1/20 11° 2° January 4 Tuesday 4 rain in 1 of 20 yrs 1/20 11° 2° January 5 Wednesday 5 rain in 0 of 20 yrs 0/20 11° 2° January 6 Thursday 6 rain in 2 of 20 yrs 2/20 11° 2° January 7 Friday 7 rain in 4 of 20 yrs 4/20 10° 2° January 8 Saturday 8 rain in 4 of 20 yrs 4/20 10° 2° 2-8 rain on 9% of days 11° 2°
January 9 Sunday 9 rain in 1 of 20 yrs 1/20 10° 2° January 10 Monday 10 rain in 2 of 20 yrs 2/20 10° 2° January 11 Tuesday 11 rain in 1 of 20 yrs 1/20 10° 2° January 12 Wednesday 12 rain in 2 of 20 yrs 2/20 10° 2° January 13 Thursday 13 rain in 3 of 20 yrs 3/20 9° 2° January 14 Friday 14 rain in 5 of 20 yrs 5/20 10° 2° January 15 Saturday 15 rain in 3 of 20 yrs 3/20 10° 2° 9-15 rain on 12% of days 10° 2°
January 16 Sunday 16 rain in 2 of 20 yrs 2/20 10° 1° January 17 Monday 17 rain in 4 of 20 yrs 4/20 10° 2° January 18 Tuesday 18 rain in 3 of 20 yrs 3/20 11° 2° January 19 Wednesday 19 rain in 3 of 20 yrs 3/20 10° 2° January 20 Thursday 20 rain in 6 of 20 yrs 6/20 10° 3° January 21 Friday 21 rain in 5 of 20 yrs 5/20 10° 2° January 22 Saturday 22 rain in 7 of 20 yrs 7/20 10° 3° 16-22 rain on 21% of days 10° 2°
January 23 Sunday 23 rain in 8 of 20 yrs 8/20 10° 2° January 24 Monday 24 rain in 5 of 20 yrs 5/20 9° 1° January 25 Tuesday 25 rain in 3 of 20 yrs 3/20 9° 1° January 26 Wednesday 26 rain in 5 of 20 yrs 5/20 9° 1° January 27 Thursday 27 rain in 3 of 20 yrs 3/20 10° 2° January 28 Friday 28 rain in 4 of 20 yrs 4/20 10° 1° January 29 Saturday 29 rain in 5 of 20 yrs 5/20 10° 2° 23-29 rain on 24% of days 9° 1°
January 30 Sunday 30 rain in 4 of 20 yrs 4/20 10° 3° January 31 Monday 31 rain in 4 of 20 yrs 4/20 10° 2°
30-31 rain on 20% of days 10° 3°
January 1 rain on 10% of days 9° 2° 2-8 rain on 9% of days 11° 2° 9-15 rain on 12% of days 10° 2° 16-22 rain on 21% of days 10° 2° 23-29 rain on 24% of days 9° 1° 30-31 rain on 20% of days 10° 3°
Tap another date to change
2006 none
2007 none
2008 5mm
2009 1mm
2010 none
2011 none
2012 none
2013 none
2014 none
2015 none
2016 1mm
2017 none
2018 none
2019 none
2020 19mm
2021 22mm
2022 15mm
2023 7mm
2024 1mm
2025 none
Holidays in January (2027) December 29 to January 3 Year-end and New Year holidaysJanuary 1 New Year's DayJanuary 11 Coming of Age DayJanuary 18 Birthday of Martin Luther King, Jr. 1 Local public holiday or break (busier, pricier)1 US holidays (flights fill up)
Holidays in January (2028) December 29 to January 3 Year-end and New Year holidays 1 Local public holiday or break (busier, pricier)
Your trip dates, the past 20 years Trip dates January 1 (Fri) 2 (Sat) 3 (Sun) 4 (Mon) 5 (Tue) 6 (Wed) 7 (Thu) 8 (Fri) 9 (Sat) 10 (Sun) 11 (Mon) 12 (Tue) 13 (Wed) 14 (Thu) 15 (Fri) 16 (Sat) 17 (Sun) 18 (Mon) 19 (Tue) 20 (Wed) 21 (Thu) 22 (Fri) 23 (Sat) 24 (Sun) 25 (Mon) 26 (Tue) 27 (Wed) 28 (Thu) 29 (Fri) 30 (Sat) 31 (Sun) ~ January 1 (Fri) 2 (Sat) 3 (Sun) 4 (Mon) 5 (Tue) 6 (Wed) 7 (Thu) 8 (Fri) 9 (Sat) 10 (Sun) 11 (Mon) 12 (Tue) 13 (Wed) 14 (Thu) 15 (Fri) 16 (Sat) 17 (Sun) 18 (Mon) 19 (Tue) 20 (Wed) 21 (Thu) 22 (Fri) 23 (Sat) 24 (Sun) 25 (Mon) 26 (Tue) 27 (Wed) 28 (Thu) 29 (Fri) 30 (Sat) 31 (Sun) 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. 2011 had 1 rain day, 2024 had 10.
Hiroshima through the year Common questions Does it rain a lot in Hiroshima in January? Over the past 20 years January averaged 5 rain days (1 mm or more) out of 31. Individual years ran from 1 in the driest to 10 in the wettest.
What should I wear in Hiroshima in January? Days averaged 10°C and nights 2°C. Pack a compact umbrella and a sweater plus a light jacket.
Is January a good time to visit Hiroshima? On warmth and rain days alone, Hiroshima's easiest months were May and October. January ranked 10 of 12.
How many clear days does Hiroshima get in January? About 3 clear days (under 30% cloud on average) and 7 overcast days (80% or more).
Previous month Hiroshima in December Next month Hiroshima in February Whole year Hiroshima weather by month Where to go January By country Japan: all cities this month