yearsofweather

Otaru in April:
chilly, frequent rain

Otaru, Japan · Records from 2006 to 2025. Not a forecast.

Mean high11°Hottest day 22.9° (2024)
Mean low3°Coldest night −4.6° (2012)
Rain days9 days2-15 by year
Rainfall58mmDaylight 12.7 → 14.1 h
Otaru's 12 months iBest: June, July and September
Trip types Sightseeing on foot Fine
Humidity73%0 muggy days
Clear days6 days9 overcast days
Mean wind14 km/h1 windy day
Sunrise / sunset (15th)04:55 / 18:18Daylight 12.7 → 14.1 h

Otaru in April

The snow is nearly gone and the stone warehouses along the canal stand out clearly. Cherry blossoms often begin only near the end of the month. The sea wind is still cold, so a windbreaker or thin down jacket is worth packing.

Days averaged 11°C and nights 3°C, cool enough that outdoor sightseeing called for a layer. About 9 days a month saw rain, enough that a wet-weather plan was worth having. The average is 9, but individual years ran from 2 (2022) to 15 (2010).

5 nights a month dropped below freezing on average. Gloves earned their place for early starts. The warmest year was 2024, with highs averaging 13.6°C, 2.3°C above normal. Cold snaps happened: the record low for April was −4.6°C, set in 2012.

Typhoons i No tropical storm passed within 300 km in this month over the last 20 years. Typhoons: August to October

Date by date i

‹ March April 2027 May ›
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Week
1-3rain on 28% of days8° 0°
4-10rain on 30% of days10° 1°
11-17rain on 34% of days11° 2°
18-24rain on 29% of days12° 4°
25-30rain on 35% of days14° 5°

0-5/206-8/209-11/2012-20/20

1-3rain on 28% of days8° 0°
4-10rain on 30% of days10° 1°
11-17rain on 34% of days11° 2°
18-24rain on 29% of days12° 4°
25-30rain on 35% of days14° 5°
Tap another date to change

20061mm
2007none
2008none
2009none
20101mm
20111mm
2012none
20131mm
2014none
2015none
2016none
20175mm
2018none
20191mm
20208mm
20213mm
2022none
2023none
202418mm
20255mm
Holidays in April (2027)
  • April 29 Showa Day
  • April 29 to May 5 Golden Week

1 Local public holiday or break (busier, pricier)

Day by day temperature i

−1°7°16°24° 1815222930

Mean high Mean low Coldest to warmest high in 20 years

Your trip dates, the past 20 years

Trip dates ~

You can also click two dates on the axis. Hover a cell to see that day's rain.
Trip rain days Month rain days
2006
1 d 11 d
2007
3 d 9 d
2008
1 d 5 d
2009
0 d 6 d
2010
3 d 15 d
2011
2 d 14 d
2012
4 d 12 d
2013
3 d 14 d
2014
3 d 6 d
2015
2 d 7 d
2016
3 d 14 d
2017
2 d 11 d
2018
3 d 7 d
2019
1 d 7 d
2020
5 d 10 d
2021
1 d 8 d
2022
0 d 2 d
2023
4 d 10 d
2024
0 d 7 d
2025
1 d 14 d
Years with rain
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
5
3
9
5
5
9
8
5
6
4
6
5
7
6
8
7
8
8
6
6
7
2
6
6
10
8
6
6
4
8
Rain days on trip
13103243323231510401

No rain1-9 mm10 mm or more Dates outside your trip are dimmed.

One row per year, one cell per day. 2022 had 2 rain days, 2010 had 15.

Otaru through the year

MonthHighLowRain daysRainfall
January −1°−6°23 days148mm
February 0°−6°19 days109mm
March 5°−2°15 days83mm
April 11°3°9 days58mm
May 18°8°9 days56mm
JuneGood 21°13°8 days65mm
JulyGood 25°18°8 days98mm
August 27°19°11 days151mm
SeptemberGood 23°15°10 days123mm
October 16°8°14 days143mm
November 8°2°18 days160mm
December 1°−4°22 days157mm

Common questions

Does it rain a lot in Otaru in April?

Over the past 20 years April averaged 9 rain days (1 mm or more) out of 30. Individual years ran from 2 in the driest to 15 in the wettest.

What should I wear in Otaru in April?

Days averaged 11°C and nights 3°C. Pack a compact umbrella, a waterproof jacket, and a sweater plus a light jacket.

Is April a good time to visit Otaru?

On warmth and rain days alone, Otaru's easiest months were June, July and September. April ranked 7 of 12.

How many clear days does Otaru get in April?

About 6 clear days (under 30% cloud on average) and 9 overcast days (80% or more).