January 11° · ☂ 4 February 12° · ☂ 8 March 15° · ☂ 8 April 20° · ☂ 9 ★ May24° · ☂ 9 June 27° · ☂ 14 July 31° · ☂ 12 August 32° · ☂ 9 September 29° · ☂ 10 ★ October24° · ☂ 7 November 18° · ☂ 6 December 13° · ☂ 5 Beppu in September:hot, frequent rain Beppu, Japan · Records from 2006 to 2025. Not a forecast.
Mean high 29° Hottest day 36.4° (2010)
Mean low 21° Coldest night 14.4° (2017)
Rain days 10 days 3-17 by year
Rainfall 258mm Daylight 12.9 → 11.9 h
Beppu'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 Finemuggy and storm risk
Humidity 79% 22 muggy days
Clear days 4 days 11 overcast days
Mean wind 7 km/h Rarely windy
Sunrise / sunset (15th) 05:57 / 18:21 Daylight 12.9 → 11.9 h
Beppu in September Wet days increase from August and typhoons are still frequent. Heavy rain can come down all at once, so check the weather often. Leaving room to swap sightseeing for a day at the baths takes the stress out of a rainy spell.
Beppu in September ran hot: 29°C by day and 21°C at night. By midday the shade was the best seat in town. About 10 days a month saw rain, enough that a wet-weather plan was worth having. Averages hide a lot here: one year saw 3, another 17.
Highs passed 30°C on 10 days on average. September 2024 averaged 31.7°C by day, 3.0°C above the 20-year mean. Rain days averaged 25 mm each, so when it rained it rained properly.
Typhoons i 12 of the last 20 years had a tropical storm pass within 300 km this month.
Chanthu (2021), 59 km away tropical storm Nanmadol (2022), 90 km away typhoon strength Talim (2017), 115 km away tropical storm 1 2 3 4 1 5 6 6 7 10 8 12 9 4 10 11 12
Date by date i Sun
Mon
Tue
Wed
Thu
Fri
Sat
Week
September 1 Wednesday 1 rain in 9 of 20 yrs 9/20 30° 23° September 2 Thursday 2 rain in 10 of 20 yrs 10/20 30° 23° September 3 Friday 3 rain in 8 of 20 yrs 8/20 30° 23° September 4 Saturday 4 rain in 7 of 20 yrs 7/20 30° 23° 1-4 rain on 43% of days 30° 23°
September 5 Sunday 5 rain in 9 of 20 yrs 9/20 30° 23° September 6 Monday 6 rain in 6 of 20 yrs 6/20 30° 23° September 7 Tuesday 7 rain in 5 of 20 yrs 5/20 31° 23° September 8 Wednesday 8 rain in 3 of 20 yrs 3/20 30° 22° September 9 Thursday 9 rain in 3 of 20 yrs 3/20 30° 22° September 10 Friday 10 rain in 7 of 20 yrs 7/20 30° 22° September 11 Saturday 11 rain in 7 of 20 yrs 7/20 30° 22° 5-11 rain on 29% of days 30° 22°
September 12 Sunday 12 rain in 10 of 20 yrs 10/20 29° 22° September 13 Monday 13 rain in 8 of 20 yrs 8/20 29° 22° September 14 Tuesday 14 rain in 7 of 20 yrs 7/20 29° 22° September 15 Wednesday 15 rain in 9 of 20 yrs 9/20 28° 22° September 16 Thursday 16 rain in 11 of 20 yrs 11/20 29° 22° September 17 Friday 17 rain in 10 of 20 yrs 10/20 29° 22° September 18 Saturday 18 rain in 8 of 20 yrs 8/20 29° 22° 12-18 rain on 45% of days 29° 22°
September 19 Sunday 19 rain in 5 of 20 yrs 5/20 29° 20° September 20 Monday 20 rain in 6 of 20 yrs 6/20 28° 20° September 21 Tuesday 21 rain in 6 of 20 yrs 6/20 28° 20° September 22 Wednesday 22 rain in 8 of 20 yrs 8/20 28° 20° September 23 Thursday 23 rain in 3 of 20 yrs 3/20 27° 20° September 24 Friday 24 rain in 6 of 20 yrs 6/20 27° 20° September 25 Saturday 25 rain in 5 of 20 yrs 5/20 28° 20° 19-25 rain on 28% of days 28° 20°
September 26 Sunday 26 rain in 4 of 20 yrs 4/20 28° 20° September 27 Monday 27 rain in 4 of 20 yrs 4/20 27° 20° September 28 Tuesday 28 rain in 7 of 20 yrs 7/20 28° 19° September 29 Wednesday 29 rain in 6 of 20 yrs 6/20 26° 19° September 30 Thursday 30 rain in 9 of 20 yrs 9/20 26° 19°
26-30 rain on 30% of days 27° 20°
1-4 rain on 43% of days 30° 23° 5-11 rain on 29% of days 30° 22° 12-18 rain on 45% of days 29° 22° 19-25 rain on 28% of days 28° 20° 26-30 rain on 30% of days 27° 20°
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Week
September 1 Friday 1 rain in 9 of 20 yrs 9/20 30° 23° September 2 Saturday 2 rain in 10 of 20 yrs 10/20 30° 23° 1-2 rain on 48% of days 30° 23°
September 3 Sunday 3 rain in 8 of 20 yrs 8/20 30° 23° September 4 Monday 4 rain in 7 of 20 yrs 7/20 30° 23° September 5 Tuesday 5 rain in 9 of 20 yrs 9/20 30° 23° September 6 Wednesday 6 rain in 6 of 20 yrs 6/20 30° 23° September 7 Thursday 7 rain in 5 of 20 yrs 5/20 31° 23° September 8 Friday 8 rain in 3 of 20 yrs 3/20 30° 22° September 9 Saturday 9 rain in 3 of 20 yrs 3/20 30° 22° 3-9 rain on 29% of days 30° 23°
September 10 Sunday 10 rain in 7 of 20 yrs 7/20 30° 22° September 11 Monday 11 rain in 7 of 20 yrs 7/20 30° 22° September 12 Tuesday 12 rain in 10 of 20 yrs 10/20 29° 22° September 13 Wednesday 13 rain in 8 of 20 yrs 8/20 29° 22° September 14 Thursday 14 rain in 7 of 20 yrs 7/20 29° 22° September 15 Friday 15 rain in 9 of 20 yrs 9/20 28° 22° September 16 Saturday 16 rain in 11 of 20 yrs 11/20 29° 22° 10-16 rain on 42% of days 29° 22°
September 17 Sunday 17 rain in 10 of 20 yrs 10/20 29° 22° September 18 Monday 18 rain in 8 of 20 yrs 8/20 29° 22° September 19 Tuesday 19 rain in 5 of 20 yrs 5/20 29° 20° September 20 Wednesday 20 rain in 6 of 20 yrs 6/20 28° 20° September 21 Thursday 21 rain in 6 of 20 yrs 6/20 28° 20° September 22 Friday 22 rain in 8 of 20 yrs 8/20 28° 20° September 23 Saturday 23 rain in 3 of 20 yrs 3/20 27° 20° 17-23 rain on 33% of days 28° 21°
September 24 Sunday 24 rain in 6 of 20 yrs 6/20 27° 20° September 25 Monday 25 rain in 5 of 20 yrs 5/20 28° 20° September 26 Tuesday 26 rain in 4 of 20 yrs 4/20 28° 20° September 27 Wednesday 27 rain in 4 of 20 yrs 4/20 27° 20° September 28 Thursday 28 rain in 7 of 20 yrs 7/20 28° 19° September 29 Friday 29 rain in 6 of 20 yrs 6/20 26° 19° September 30 Saturday 30 rain in 9 of 20 yrs 9/20 26° 19° 24-30 rain on 29% of days 27° 20°
1-2 rain on 48% of days 30° 23° 3-9 rain on 29% of days 30° 23° 10-16 rain on 42% of days 29° 22° 17-23 rain on 33% of days 28° 21° 24-30 rain on 29% of days 27° 20°
Tap another date to change
2006 16mm
2007 none
2008 6mm
2009 none
2010 none
2011 39mm
2012 71mm
2013 none
2014 none
2015 20mm
2016 4mm
2017 55mm
2018 none
2019 none
2020 10mm
2021 4mm
2022 none
2023 15mm
2024 none
2025 12mm
Holidays in September (2027) September 18 to September 20 Respect for the Aged Day long weekendSeptember 23 Autumnal Equinox DaySeptember 6 Labor Day 1 Local public holiday or break (busier, pricier)1 US holidays (flights fill up)
Holidays in September (2028)
Day by day temperature i 18° 25° 31° 38° 1 8 15 22 29 30
Your trip dates, the past 20 years Trip dates September 1 (Wed) 2 (Thu) 3 (Fri) 4 (Sat) 5 (Sun) 6 (Mon) 7 (Tue) 8 (Wed) 9 (Thu) 10 (Fri) 11 (Sat) 12 (Sun) 13 (Mon) 14 (Tue) 15 (Wed) 16 (Thu) 17 (Fri) 18 (Sat) 19 (Sun) 20 (Mon) 21 (Tue) 22 (Wed) 23 (Thu) 24 (Fri) 25 (Sat) 26 (Sun) 27 (Mon) 28 (Tue) 29 (Wed) 30 (Thu) ~ September 1 (Wed) 2 (Thu) 3 (Fri) 4 (Sat) 5 (Sun) 6 (Mon) 7 (Tue) 8 (Wed) 9 (Thu) 10 (Fri) 11 (Sat) 12 (Sun) 13 (Mon) 14 (Tue) 15 (Wed) 16 (Thu) 17 (Fri) 18 (Sat) 19 (Sun) 20 (Mon) 21 (Tue) 22 (Wed) 23 (Thu) 24 (Fri) 25 (Sat) 26 (Sun) 27 (Mon) 28 (Tue) 29 (Wed) 30 (Thu) 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 2 Thu Pick September 2
10 10 Fri Pick September 10
7 11 Sat Pick September 11
7 12 Sun Pick September 12
10 13 Mon Pick September 13
8 14 Tue Pick September 14
7 15 Wed Pick September 15
9 16 Thu Pick September 16
11 17 Fri Pick September 17
10 18 Sat Pick September 18
8 19 Sun Pick September 19
5 20 Mon Pick September 20
6 21 Tue Pick September 21
6 22 Wed Pick September 22
8 23 Thu Pick September 23
3 24 Fri Pick September 24
6 25 Sat Pick September 25
5 26 Sun Pick September 26
4 27 Mon Pick September 27
4 28 Tue Pick September 28
7 29 Wed Pick September 29
6 30 Thu Pick September 30
9 Dates outside your trip are dimmed.
One row per year, one cell per day. 2009 had 3 rain days, 2008 had 17.
What to pack Loose linen or quick-dry cotton, a wide-brimmed hat and sunscreen were the basics. A water bottle stayed in the bag, and midday plans moved indoors.
Averaging 10 rain days, keep a light waterproof or a compact umbrella in the bag. In windy spots umbrellas flip easily.
Common questions Does it rain a lot in Beppu in September? Over the past 20 years September averaged 10 rain days (1 mm or more) out of 30. Individual years ran from 3 in the driest to 17 in the wettest.
What should I wear in Beppu in September? Days averaged 29°C and nights 21°C. Pack a compact umbrella, T-shirts, sunscreen plus a hat, and insect repellent.
Is September a good time to visit Beppu? On warmth and rain days alone, Beppu's easiest months were May and October. September ranked 5 of 12.
Is Beppu humid in September? Mean relative humidity was 79%, with about 22 muggy days (dew point of 20°C or more) in the month.
Previous month Beppu in August Next month Beppu in October Whole year Beppu weather by month Where to go September By country Japan: all cities this month