January 31° · ☂ 12 ★ February32° · ☂ 8 ★ March32° · ☂ 8 April 33° · ☂ 12 May 33° · ☂ 14 June 33° · ☂ 14 July 33° · ☂ 15 August 32° · ☂ 16 September 32° · ☂ 15 October 32° · ☂ 19 November 32° · ☂ 17 December 32° · ☂ 15 Kota Kinabalu in September:very hot, rain every other day Kota Kinabalu, Malaysia · Records from 2006 to 2025. Not a forecast.
Mean high 32° Hottest day 35.2° (2019)
Mean low 24° Coldest night 22.6° (2013)
Rain days 15 days 7-22 by year
Rainfall 406mm Daylight 12.2 → 12.1 h
Kota Kinabalu's 12 months i Best: February and March
1 2 3 4 5 6 7 8 9 10 11 12
Trip types Beach Poorfrequent rain Sightseeing on foot Poorhot, frequent rain and muggy
Humidity 81% 30 muggy days
Clear days 0 days 24 overcast days
Mean wind 9 km/h Rarely windy
Sea temperature 29.9° 29.4-30.3° by year (last 6)
Sunrise / sunset (15th) 06:06 / 18:16 Daylight 12.2 → 12.1 h
Kota Kinabalu in September Malaysia Day on 16 September is a public holiday, and many in Sabah treat it as the more meaningful national day. It is the run-up to the October rain peak, so keep a backup plan or two for rainy days.
Days averaged 32°C and nights 24°C. Midday was for air conditioning, a cold drink or a long lunch out of the sun. With 15 rain days on average, a wet day was rarely more than a few days away. Averages hide a lot here: one year saw 7, another 22.
Highs topped 30°C on 29 days of the month on average. Mixing in indoor stops at midday made sense. Rain days averaged 27 mm each, so when it rained it rained properly.
Typhoons i Typhoons: December and January
Date by date i Sun
Mon
Tue
Wed
Thu
Fri
Sat
Week
September 1 Wednesday 1 rain in 10 of 20 yrs 10/20 32° 24° September 2 Thursday 2 rain in 9 of 20 yrs 9/20 32° 24° September 3 Friday 3 rain in 7 of 20 yrs 7/20 33° 24° September 4 Saturday 4 rain in 9 of 20 yrs 9/20 32° 24° 1-4 rain on 44% of days 32° 24°
September 5 Sunday 5 rain in 11 of 20 yrs 11/20 32° 24° September 6 Monday 6 rain in 13 of 20 yrs 13/20 32° 24° September 7 Tuesday 7 rain in 11 of 20 yrs 11/20 32° 24° September 8 Wednesday 8 rain in 16 of 20 yrs 16/20 32° 24° September 9 Thursday 9 rain in 14 of 20 yrs 14/20 32° 24° September 10 Friday 10 rain in 11 of 20 yrs 11/20 32° 24° September 11 Saturday 11 rain in 10 of 20 yrs 10/20 32° 24° 5-11 rain on 61% of days 32° 24°
September 12 Sunday 12 rain in 11 of 20 yrs 11/20 32° 24° September 13 Monday 13 rain in 10 of 20 yrs 10/20 32° 24° September 14 Tuesday 14 rain in 9 of 20 yrs 9/20 32° 24° September 15 Wednesday 15 rain in 12 of 20 yrs 12/20 32° 24° September 16 Thursday 16 rain in 8 of 20 yrs 8/20 32° 24° September 17 Friday 17 rain in 11 of 20 yrs 11/20 32° 24° September 18 Saturday 18 rain in 7 of 20 yrs 7/20 33° 24° 12-18 rain on 49% of days 32° 24°
September 19 Sunday 19 rain in 8 of 20 yrs 8/20 32° 24° September 20 Monday 20 rain in 12 of 20 yrs 12/20 32° 24° September 21 Tuesday 21 rain in 12 of 20 yrs 12/20 32° 24° September 22 Wednesday 22 rain in 9 of 20 yrs 9/20 32° 24° September 23 Thursday 23 rain in 7 of 20 yrs 7/20 32° 24° September 24 Friday 24 rain in 6 of 20 yrs 6/20 33° 24° September 25 Saturday 25 rain in 11 of 20 yrs 11/20 32° 24° 19-25 rain on 46% of days 32° 24°
September 26 Sunday 26 rain in 13 of 20 yrs 13/20 32° 24° September 27 Monday 27 rain in 13 of 20 yrs 13/20 32° 24° September 28 Tuesday 28 rain in 9 of 20 yrs 9/20 32° 24° September 29 Wednesday 29 rain in 7 of 20 yrs 7/20 32° 24° September 30 Thursday 30 rain in 8 of 20 yrs 8/20 32° 24°
26-30 rain on 50% of days 32° 24°
1-4 rain on 44% of days 32° 24° 5-11 rain on 61% of days 32° 24° 12-18 rain on 49% of days 32° 24° 19-25 rain on 46% of days 32° 24° 26-30 rain on 50% of days 32° 24°
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Week
September 1 Friday 1 rain in 10 of 20 yrs 10/20 32° 24° September 2 Saturday 2 rain in 9 of 20 yrs 9/20 32° 24° 1-2 rain on 48% of days 32° 24°
September 3 Sunday 3 rain in 7 of 20 yrs 7/20 33° 24° September 4 Monday 4 rain in 9 of 20 yrs 9/20 32° 24° September 5 Tuesday 5 rain in 11 of 20 yrs 11/20 32° 24° September 6 Wednesday 6 rain in 13 of 20 yrs 13/20 32° 24° September 7 Thursday 7 rain in 11 of 20 yrs 11/20 32° 24° September 8 Friday 8 rain in 16 of 20 yrs 16/20 32° 24° September 9 Saturday 9 rain in 14 of 20 yrs 14/20 32° 24° 3-9 rain on 58% of days 32° 24°
September 10 Sunday 10 rain in 11 of 20 yrs 11/20 32° 24° September 11 Monday 11 rain in 10 of 20 yrs 10/20 32° 24° September 12 Tuesday 12 rain in 11 of 20 yrs 11/20 32° 24° September 13 Wednesday 13 rain in 10 of 20 yrs 10/20 32° 24° September 14 Thursday 14 rain in 9 of 20 yrs 9/20 32° 24° September 15 Friday 15 rain in 12 of 20 yrs 12/20 32° 24° September 16 Saturday 16 rain in 8 of 20 yrs 8/20 32° 24° 10-16 rain on 51% of days 32° 24°
September 17 Sunday 17 rain in 11 of 20 yrs 11/20 32° 24° September 18 Monday 18 rain in 7 of 20 yrs 7/20 33° 24° September 19 Tuesday 19 rain in 8 of 20 yrs 8/20 32° 24° September 20 Wednesday 20 rain in 12 of 20 yrs 12/20 32° 24° September 21 Thursday 21 rain in 12 of 20 yrs 12/20 32° 24° September 22 Friday 22 rain in 9 of 20 yrs 9/20 32° 24° September 23 Saturday 23 rain in 7 of 20 yrs 7/20 32° 24° 17-23 rain on 47% of days 32° 24°
September 24 Sunday 24 rain in 6 of 20 yrs 6/20 33° 24° September 25 Monday 25 rain in 11 of 20 yrs 11/20 32° 24° September 26 Tuesday 26 rain in 13 of 20 yrs 13/20 32° 24° September 27 Wednesday 27 rain in 13 of 20 yrs 13/20 32° 24° September 28 Thursday 28 rain in 9 of 20 yrs 9/20 32° 24° September 29 Friday 29 rain in 7 of 20 yrs 7/20 32° 24° September 30 Saturday 30 rain in 8 of 20 yrs 8/20 32° 24° 24-30 rain on 48% of days 32° 24°
1-2 rain on 48% of days 32° 24° 3-9 rain on 58% of days 32° 24° 10-16 rain on 51% of days 32° 24° 17-23 rain on 47% of days 32° 24° 24-30 rain on 48% of days 32° 24°
Tap another date to change
2006 20mm
2007 30mm
2008 40mm
2009 none
2010 5mm
2011 5mm
2012 none
2013 81mm
2014 15mm
2015 9mm
2016 20mm
2017 10mm
2018 15mm
2019 none
2020 7mm
2021 44mm
2022 10mm
2023 131mm
2024 none
2025 6mm
Holidays in September (2027) September 16 Malaysia DaySeptember 6 Labor Day 1 Local public holiday or break (busier, pricier)1 US holidays (flights fill up)
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 1 Wed Pick September 1
10 5 Sun Pick September 5
11 6 Mon Pick September 6
13 7 Tue Pick September 7
11 8 Wed Pick September 8
16 9 Thu Pick September 9
14 10 Fri Pick September 10
11 11 Sat Pick September 11
10 12 Sun Pick September 12
11 13 Mon Pick September 13
10 14 Tue Pick September 14
9 15 Wed Pick September 15
12 16 Thu Pick September 16
8 17 Fri Pick September 17
11 18 Sat Pick September 18
7 19 Sun Pick September 19
8 20 Mon Pick September 20
12 21 Tue Pick September 21
12 22 Wed Pick September 22
9 23 Thu Pick September 23
7 24 Fri Pick September 24
6 25 Sat Pick September 25
11 26 Sun Pick September 26
13 27 Mon Pick September 27
13 28 Tue Pick September 28
9 29 Wed Pick September 29
7 30 Thu Pick September 30
8 Dates outside your trip are dimmed.
One row per year, one cell per day. 2019 had 7 rain days, 2007 had 22.
Kota Kinabalu through the year Month High Low Rain days Rainfall Sea January 31° 24° 12 days 235mm 29° February Good 32° 24° 8 days 107mm 28° March Good 32° 24° 8 days 155mm 28° April 33° 25° 12 days 161mm 30° May 33° 25° 14 days 288mm 31° June 33° 24° 14 days 296mm 30° July 33° 24° 15 days 316mm 30° August 32° 24° 16 days 345mm 30° September 32° 24° 15 days 406mm 30° October 32° 24° 19 days 464mm 30° November 32° 24° 17 days 321mm 30° December 32° 24° 15 days 330mm 30°
What to pack At 32°C by day and 24°C at night with humid air, sweat hardly dried. Quick-dry fabrics beat heavy cotton, and a spare top saved the evening.
A packable rain jacket weighs almost nothing and covers 15 rain days. Leave the suede at home.
Common questions Does it rain a lot in Kota Kinabalu in September? Over the past 20 years September averaged 15 rain days (1 mm or more) out of 30. Individual years ran from 7 in the driest to 22 in the wettest.
What should I wear in Kota Kinabalu in September? Days averaged 32°C and nights 24°C. Pack an umbrella, sandals that can get wet, T-shirts, sunscreen plus a hat, a swimsuit, and insect repellent.
Can you swim in Kota Kinabalu in September? Sea surface temperature averaged 29.9°C in September, warm enough to stay in for a long swim. Year to year it ranged 29.4-30.3°C. Check local flags for waves and jellyfish on the day.
Is September a good time to visit Kota Kinabalu? On warmth and rain days alone, Kota Kinabalu's easiest months were February and March. September ranked 9 of 12.
Is Kota Kinabalu humid in September? Mean relative humidity was 81%, with about 30 muggy days (dew point of 20°C or more) in the month.
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