Kahului, HI: September

30 September 2026: September 2026 averaged 80.9°F in Kahului, HI, the warmest September since 2022, tied 8th warmest of 73 (with 1980, 1979 and 1978).

September 2026

Mean temperature: 80.9°F; Warmest since 2022; 8th warmest of 73
Precipitation: 0.60 in; Wettest since 2018; 19th wettest of 89

A normal September in Kahului, HI (1991 to 2020): a mean temperature of 79.9°F, between 77.9°F and 81.4°F in eight years of ten and 0.21 in of precipitation, between 0.03 in and 1.18 in in eight years of ten.

The mean temperature of every September in Kahului, HI since 1954: 80.9°F in 2026; the highest is 83°F, in 2019.

Normal range, 77.9 to 81.4°F

Every year, ranked, as a table

Every September in Kahului, HI from 1905 to 2026, ranked: the mean temperature, the mean high and the mean low from the warmest, the precipitation from the wettest; a year missing more than a tenth of its days is not ranked.

Year	Mean, °F	Rank	High, °F	Rank	Low, °F	Rank	Precipitation, in	Rank	Days missing
2026	80.9	8	88.3	33	73.5	3	0.60	19	0
2025	80.6	13	89.2	18	72	17	0.04	79	0
2024	79.8	28	89.3	17	70.4	36	trace	86	0
2023	79.9	24	88.8	23	71	26	0.08	70	0
2022	82.3	2	91.8	3	72.8	7	0.53	22	0
2021	79.8	28	88.6	27	71	26	0.13	54	0
2020	82.2	3	92	2	72.3	14	0.27	34	0
2019	83	1	92.4	1	73.6	2	0.21	41	0
2018	81.2	6	89.7	12	72.8	7	1.97	1	0
2017	80.3	18	90.2	7	70.3	42	0.06	76	0
2016	81.1	7	89.1	19	73	5	1.24	5	0
2015	82.2	3	90.4	4	74	1	0.37	30	0
2014	80.6	13	90.4	4	70.9	29	0.71	15	0
2013	80.1	20	89	22	71.3	23	0.25	36	0
2012	78.4	51	86.5	63	70.4	36	0.36	32	0
2011	76.8	71	86.6	57	67	72	0.08	70	0
2010	78.5	48	87.3	45	69.8	48	0.20	45	0
2009	78.7	45	87.3	45	70.2	44	0.12	57	0
2008	78	53	87.3	45	68.6	63	0.19	47	0
2007	79.4	35	88.1	34	70.6	33	0.03	81	0
2006	79.5	33	88.8	23	70.2	44	0.23	39	0
2005	79.9	24	87.3	45	72.4	13			0
2004	80	21	89.5	13	70.5	35	0.02	84	0
2003	79.6	32	89.4	16	69.8	48	0.17	50	0
2002	77.9	56	86.9	51	68.9	58	trace	86	0
2001	79.2	38	86.6	57	71.7	19	0.09	67	0
2000	77.8	59	86.8	53	68.8	61	0.54	21	0
1999	78.6	46	86.8	53	70.3	42	0.03	81	0
1998	77.9	56	86.1	65	69.7	50	0.41	28	0
1997	81.3	5	89.5	13	73	5	0.09	67	0
1996	80.4	15	90.2	7	70.6	33	0.18	48	0
1995	79.8	28	90	9	69.7	50	0.12	57	0
1994	80.7	12	88.8	23	72.6	10	1.11	9	0
1993	80	21	89.1	19	70.8	30	0.78	12	0
1992	80.4	15	87.7	39	73.1	4	1.32	4	0
1991	78.9	41	87.5	43	70.4	36	1.17	6	0
1990	80.3	18	88.1	34	72.5	12	0.50	23	0
1989	78.5	48	86.7	55	70.4	36	0.31	33	0
1988	78.9	41	88.1	34	69.6	52	0.23	39	0
1987	79.5	33	87.8	38	71.2	25	1.43	3	0
1986	79.4	35	88.8	23	70	46	0.05	77	0
1985	77.1	68	86.6	57	67.6	70	0.10	66	0
1984	79.4	35	89.5	13	69.2	56	0.11	61	0
1983	78	53	86.4	64	69.6	52	0.50	23	0
1982	80	21	88.4	31	71.6	20	0.56	20	0
1981	80.4	15	88.5	29	72.2	15	0.85	11	0
1980	80.9	8	89.8	11	72.1	16	0.11	61	0
1979	80.9	8	90	9	71.8	18	0.21	41	0
1978	80.9	8	89.1	19	72.7	9	0.25	36	0
1977	79.7	31	88.4	31	71	26	0.05	77	0
1976	78.8	44	87.7	39	70	46	0.15	52	0
1975	76.2	72	85.4	67	67	72	0.11	61	0
1974	77.7	62	88	37	67.4	71	0.12	57	0
1973	77.7	62	86.6	57	68.8	61	0.04	79	0
1972	78.6	46	88.5	29	68.6	63	0.02	84	0
1971	78.5	48	88.6	27	68.4	66	0.25	36	0
1970	78	53	87.7	39	68.3	68	0.44	27	0
1969	77.9	56	86.9	51	68.9	58	0.49	25	0
1968	79.9	24	90.4	4	69.3	55	0.21	41	0
1967	77.7	62	86.7	55	68.6	63	0.08	70	0
1966	79.2	38	87.6	42	70.8	30	0.62	18	0
1965	77.8	59	87.4	44	68.3	68	1.17	6	0
1964	77	69	85	68	69	57	0.20	45	0
1963	78.3	52	85.8	66	70.7	32	1.17	6	0
1962	77.7	62	86.6	57	68.9	58	0.03	81	0
1961	78.9	41	87.3	45	70.4	36	0.15	52	0
1960	79.1	40	86.6	57	71.6	20	0.69	16	0
1959	79.9	24	87.1	50	72.6	10	0.11	61	0
1958	77.7	62	83.9	72	71.4	22	0.41	28	0
1957	77.8	59	84.3	71	71.3	23	0.08	70	0
1956	77.5	67	84.5	70	70.4	36	0.11	61	0
1955	75.1	73	81.9	73	68.4	66	0.08	70	0
1954	77	69	84.6	69	69.4	54	0.08	70	0
1923							0.99	10	30
1922							0.68	17	30
1921							trace	86	30
1920							trace	86	30
1919							1.46	2	30
1918							0.27	34	30
1917							0.09	67	30
1916							0.13	54	30
1915							0.76	13	30
1913							0.49	25	30
1912							0.17	50	30
1910							0.12	57	30
1909							0.13	54	30
1908							0.37	30	30
1907							0.18	48	30
1906							0.21	41	30
1905							0.74	14	30

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2019	83
2022	82.3
2020	82.2
2015	82.2
1997	81.3
2018	81.2
2016	81.1
2026	80.9
1980	80.9
1979	80.9
More years share the last value

Coldest
Year	Mean, °F
1955	75.1
1975	76.2
2011	76.8
1964	77
1954	77
1985	77.1
1956	77.5
1974	77.7
1973	77.7
1967	77.7
More years share the last value

Wettest
Year	Precipitation, in
2018	1.97
1919	1.46
1987	1.43
1992	1.32
2016	1.24
1991	1.17
1965	1.17
1963	1.17
1994	1.11
1923	0.99

Driest
Year	Precipitation, in
2024	trace
2002	trace
1921	trace
1920	trace
2004	0.02
1972	0.02
2007	0.03
1999	0.03
1962	0.03
2025	0.04
More years share the last value

The hottest, coldest and wettest days

Hottest day: 93°F; 28 September 2026
Coldest night: 65°F; 29 September 2026, 28 September 2026
Wettest day: 0.26 in; 1 September 2026

Every month, season and year

Months

Seasons

Years

Kahului, HI the day's answers

All-time records

Every answer in words

September 2026 brought 0.60 in of precipitation in Kahului, HI, the wettest September since 2018, 19th wettest of 89.
The hottest day of September 2026 in Kahului, HI: 93°F on Monday 28 September 2026.
The coldest night of September 2026 in Kahului, HI: a low of 65°F on Tuesday 29 September 2026 and Monday 28 September 2026.
The wettest day of September 2026 in Kahului, HI: 0.26 in on Tuesday 1 September 2026.