January 9° · ☂ 8 February 10° · ☂ 8 March 14° · ☂ 8 April 18° · ☂ 8 ★ May22° · ☂ 7 ★ June25° · ☂ 9 July 30° · ☂ 9 August 30° · ☂ 10 September 27° · ☂ 10 ★ October22° · ☂ 6 November 17° · ☂ 8 December 11° · ☂ 9 Jeju in April:cool and fresh, occasional rain Jeju, South Korea · Records from 2006 to 2025. Not a forecast.
Mean high 18° Hottest day 24.4° (2023)
Mean low 11° Coldest night 3.5° (2010)
Rain days 8 days 4-13 by year
Rainfall 89mm Daylight 12.5 → 13.5 h
Jeju's 12 months i Best: May, June and October
1 2 3 4 5 6 7 8 9 10 11 12
Trip types Beach Poorcool sea Sightseeing on foot Goodmild
Humidity 72% 0 muggy days
Clear days 7 days 11 overcast days
Mean wind 12 km/h Rarely windy
Sea temperature 15.1° 14.2-16.1° by year (last 6)
Sunrise / sunset (15th) 06:04 / 19:04 Daylight 12.5 → 13.5 h
Jeju in April Peak canola season. On Noksan-ro in Gasi-ri, on the southeast side of the island, canola and cherry trees bloom along the same road, and the Seogwipo Canola Flower Festival is held there in spring. The barley fields on Gapado island are deep green. Locals call the drizzle of April and May 'bracken rain', after the ferns that sprout with it.
Jeju saw 18°C by day and 11°C at night in April. A light layer covered most days. With about 8 rain days, showers were an occasional nuisance rather than the rule. Individual years ran between 4 and 13 rain days.
How long it rained On a rainy day it rained for about 6.9 hours. Rain came at any time of day.
0 3 6 9 12 15 18 21
Typhoons i Typhoons: June to November
Date by date i Sun
Mon
Tue
Wed
Thu
Fri
Sat
Week
April 1 Thursday 1 rain in 4 of 20 yrs 4/20 17° 9° April 2 Friday 2 rain in 4 of 20 yrs 4/20 17° 10° April 3 Saturday 3 rain in 6 of 20 yrs 6/20 17° 9° 1-3 rain on 23% of days 17° 9°
April 4 Sunday 4 rain in 5 of 20 yrs 5/20 17° 10° April 5 Monday 5 rain in 8 of 20 yrs 8/20 17° 10° April 6 Tuesday 6 rain in 7 of 20 yrs 7/20 17° 9° April 7 Wednesday 7 rain in 3 of 20 yrs 3/20 17° 9° April 8 Thursday 8 rain in 2 of 20 yrs 2/20 18° 10° April 9 Friday 9 rain in 5 of 20 yrs 5/20 18° 11° April 10 Saturday 10 rain in 3 of 20 yrs 3/20 18° 11° 4-10 rain on 24% of days 17° 10°
April 11 Sunday 11 rain in 6 of 20 yrs 6/20 18° 11° April 12 Monday 12 rain in 9 of 20 yrs 9/20 18° 11° April 13 Tuesday 13 rain in 6 of 20 yrs 6/20 18° 10° April 14 Wednesday 14 rain in 8 of 20 yrs 8/20 18° 10° April 15 Thursday 15 rain in 2 of 20 yrs 2/20 18° 10° April 16 Friday 16 rain in 5 of 20 yrs 5/20 18° 11° April 17 Saturday 17 rain in 4 of 20 yrs 4/20 18° 11° 11-17 rain on 29% of days 18° 11°
April 18 Sunday 18 rain in 1 of 20 yrs 1/20 19° 11° April 19 Monday 19 rain in 6 of 20 yrs 6/20 19° 12° April 20 Tuesday 20 rain in 5 of 20 yrs 5/20 19° 12° April 21 Wednesday 21 rain in 4 of 20 yrs 4/20 19° 12° April 22 Thursday 22 rain in 7 of 20 yrs 7/20 19° 12° April 23 Friday 23 rain in 7 of 20 yrs 7/20 19° 12° April 24 Saturday 24 rain in 4 of 20 yrs 4/20 19° 12° 18-24 rain on 24% of days 19° 12°
April 25 Sunday 25 rain in 4 of 20 yrs 4/20 20° 12° April 26 Monday 26 rain in 4 of 20 yrs 4/20 19° 12° April 27 Tuesday 27 rain in 4 of 20 yrs 4/20 20° 12° April 28 Wednesday 28 rain in 5 of 20 yrs 5/20 20° 12° April 29 Thursday 29 rain in 6 of 20 yrs 6/20 20° 13° April 30 Friday 30 rain in 6 of 20 yrs 6/20 20° 14°
25-30 rain on 24% of days 20° 12°
1-3 rain on 23% of days 17° 9° 4-10 rain on 24% of days 17° 10° 11-17 rain on 29% of days 18° 11° 18-24 rain on 24% of days 19° 12° 25-30 rain on 24% of days 20° 12°
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Week
April 1 Saturday 1 rain in 4 of 20 yrs 4/20 17° 9° April 1 rain on 20% of days 17° 9°
April 2 Sunday 2 rain in 4 of 20 yrs 4/20 17° 10° April 3 Monday 3 rain in 6 of 20 yrs 6/20 17° 9° April 4 Tuesday 4 rain in 5 of 20 yrs 5/20 17° 10° April 5 Wednesday 5 rain in 8 of 20 yrs 8/20 17° 10° April 6 Thursday 6 rain in 7 of 20 yrs 7/20 17° 9° April 7 Friday 7 rain in 3 of 20 yrs 3/20 17° 9° April 8 Saturday 8 rain in 2 of 20 yrs 2/20 18° 10° 2-8 rain on 25% of days 17° 10°
April 9 Sunday 9 rain in 5 of 20 yrs 5/20 18° 11° April 10 Monday 10 rain in 3 of 20 yrs 3/20 18° 11° April 11 Tuesday 11 rain in 6 of 20 yrs 6/20 18° 11° April 12 Wednesday 12 rain in 9 of 20 yrs 9/20 18° 11° April 13 Thursday 13 rain in 6 of 20 yrs 6/20 18° 10° April 14 Friday 14 rain in 8 of 20 yrs 8/20 18° 10° April 15 Saturday 15 rain in 2 of 20 yrs 2/20 18° 10° 9-15 rain on 28% of days 18° 11°
April 16 Sunday 16 rain in 5 of 20 yrs 5/20 18° 11° April 17 Monday 17 rain in 4 of 20 yrs 4/20 18° 11° April 18 Tuesday 18 rain in 1 of 20 yrs 1/20 19° 11° April 19 Wednesday 19 rain in 6 of 20 yrs 6/20 19° 12° April 20 Thursday 20 rain in 5 of 20 yrs 5/20 19° 12° April 21 Friday 21 rain in 4 of 20 yrs 4/20 19° 12° April 22 Saturday 22 rain in 7 of 20 yrs 7/20 19° 12° 16-22 rain on 23% of days 19° 12°
April 23 Sunday 23 rain in 7 of 20 yrs 7/20 19° 12° April 24 Monday 24 rain in 4 of 20 yrs 4/20 19° 12° April 25 Tuesday 25 rain in 4 of 20 yrs 4/20 20° 12° April 26 Wednesday 26 rain in 4 of 20 yrs 4/20 19° 12° April 27 Thursday 27 rain in 4 of 20 yrs 4/20 20° 12° April 28 Friday 28 rain in 5 of 20 yrs 5/20 20° 12° April 29 Saturday 29 rain in 6 of 20 yrs 6/20 20° 13° 23-29 rain on 24% of days 19° 12°
April 30 Sunday 30 rain in 6 of 20 yrs 6/20 20° 14°
April 30 rain on 30% of days 20° 14°
April 1 rain on 20% of days 17° 9° 2-8 rain on 25% of days 17° 10° 9-15 rain on 28% of days 18° 11° 16-22 rain on 23% of days 19° 12° 23-29 rain on 24% of days 19° 12° April 30 rain on 30% of days 20° 14°
Tap another date to change
2006 2mm
2007 none
2008 none
2009 none
2010 15mm
2011 none
2012 none
2013 none
2014 2mm
2015 12mm
2016 1mm
2017 none
2018 none
2019 none
2020 7mm
2021 27mm
2022 none
2023 none
2024 1mm
2025 16mm
Holidays in April (2027) · No public holidays this month.
Day by day temperature i 8° 14° 20° 26° 1 8 15 22 29 30
Your trip dates, the past 20 years Trip dates April 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) ~ April 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) 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
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. 2013 had 4 rain days, 2015 had 13.
Jeju through the year Month High Low Rain days Rainfall Sea January 9° 4° 8 days 59mm 16° February 10° 4° 8 days 67mm 15° March 14° 7° 8 days 85mm 14° April 18° 11° 8 days 89mm 15° May Good 22° 15° 7 days 93mm 17° June Good 25° 19° 9 days 161mm 21° July 30° 24° 9 days 201mm 25° August 30° 25° 10 days 254mm 28° September 27° 21° 10 days 290mm 27° October Good 22° 16° 6 days 107mm 23° November 17° 11° 8 days 90mm 20° December 11° 6° 9 days 54mm 17°
What to pack Shirt sleeves were fine at midday. A cardigan or thin jacket was welcome after dark. On average 8 days still reached 20°C.
Most days stayed dry, yet a thin packable jacket cost nothing to carry and saved the odd soaked afternoon.
Common questions Does it rain a lot in Jeju in April? Over the past 20 years April averaged 8 rain days (1 mm or more) out of 30. Individual years ran from 4 in the driest to 13 in the wettest.
What should I wear in Jeju in April? Days averaged 18°C and nights 11°C. Pack a compact umbrella and a light layer for the evenings.
Can you swim in Jeju in April? Sea surface temperature averaged 15.1°C in April, too cold for most people without a wetsuit. Year to year it ranged 14.2-16.1°C. Check local flags for waves and jellyfish on the day.
Is April a good time to visit Jeju? On warmth and rain days alone, Jeju's easiest months were May, June and October. April ranked 5 of 12.
How many clear days does Jeju get in April? About 7 clear days (under 30% cloud on average) and 11 overcast days (80% or more).
Previous month Jeju in March Next month Jeju in May Whole year Jeju weather by month Where to go April By country South Korea: all cities this month Compare Compare with Busan Compare Compare with Naha