Hilo, HI: August

31 August 2026: August 2026 averaged 78.1°F in Hilo, HI, the warmest August since 2020 (2025 excluded: 5 of 31 days missing), tied 8th warmest of 76 (with 1977).

August 2026

Mean temperature: 78.1°F; Warmest since 2020; 8th warmest of 76
Precipitation: 20.85 in; Wettest since 2018; 6th wettest of 76

A normal August in Hilo, HI (1991 to 2020): a mean temperature of 77°F, between 76°F and 78.5°F in eight years of ten and 8.81 in of precipitation, between 4.71 in and 17.95 in in eight years of ten.

The mean temperature of every August in Hilo, HI since 1950: 78.1°F in 2026; the highest is 80.1°F, in 2019.

Normal range, 76 to 78.5°F

Every year, ranked, as a table

Every August in Hilo, HI from 1950 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	78.1	8	83.7	34	72.6	4	20.85	6	0
2025									5
2024	76.6	32	83.5	39	69.7	31	11.56	21	0
2023	77	22	84.3	21	69.7	31	5.35	61	0
2022	76.6	32	84.4	18	68.9	47	5.15	63	0
2021	77.7	14	84.9	15	70.5	15	7.34	51	0
2020	78.7	3	85.6	7	71.8	5	4.25	70	0
2019	80.1	1	87.1	1	73.1	1	9.40	29	0
2018	78.2	6	83.8	33	72.7	3	49.18	1	0
2017	77.1	19	84.1	27	70.1	20	8.88	33	0
2016	78	10	84.4	18	71.5	7	24.68	5	0
2015	79.7	2	86.6	2	72.9	2	17.20	11	0
2014	78	10	85.1	14	70.9	10	10.81	23	0
2013	76.4	40	82.9	51	69.8	29	9.04	31	0
2012	75.9	54	83	48	68.8	49	6.79	57	0
2011	76	49	82.9	51	69	46	8.74	36	0
2010	75.4	65	82.8	55	68	63	4.31	69	0
2009	76	49	82.7	57	69.4	37	4.92	65	0
2008	76.1	45	84.2	24	68	63	3.88	73	0
2007	77	22	85.5	10	68.5	56	7.77	44	0
2006	76.5	36	83.5	39	69.5	36	5.69	59	0
2005	76.9	26	84.4	18	69.4	37	7.64	46	0
2004	78.2	6	85.9	4	70.5	15	6.83	56	0
2003	77.6	15	84.5	17	70.7	11	8.26	38	0
2002	77	22	83.7	34	70.3	18	13.65	16	0
2001	76.1	45	82.6	59	69.6	34	7.90	42	0
2000	76	49	82.1	69	70	24	10.54	25	0
1999	74.3	74	80.9	75	67.7	67	10.14	27	0
1998	76.1	45	82.5	62	69.7	31	8.48	37	0
1997	78	10	85.8	5	70.1	20	4.75	68	0
1996	77.5	17	85.7	6	69.3	41	4.77	67	0
1995	77.6	15	85.2	13	70.1	20	13.93	15	0
1994	78.5	4	85.5	10	71.6	6	14.58	14	0
1993	76.9	26	84	30	69.9	26	11.38	22	0
1992	77.2	18	83.7	34	70.6	12	13.62	17	0
1991	76.9	26	83.2	45	70.6	12	26.92	2	0
1990	77	22	84.1	27	69.9	26	7.80	43	0
1989	74.9	72	82.3	66	67.6	68	8.82	34	0
1988	76	49	82.8	55	69.1	44	16.56	12	0
1987	77.9	13	85.3	12	70.5	15	3.69	74	0
1986	78.5	4	85.6	7	71.3	8	10.64	24	0
1985	75.7	58	82	70	69.4	37	6.71	58	0
1984	75.3	66	81.9	72	68.6	54	9.36	30	0
1983	75.2	69	81.8	73	68.6	54	7.48	49	0
1982	76.9	26	82.7	57	71.1	9	25.45	4	0
1981	76	49	82.2	68	69.9	26	8.97	32	0
1980	75	71	82.9	51	67	75	8.24	39	0
1979	75.6	61	83.4	43	67.8	66	7.04	54	0
1978	76.8	31	83	48	70.6	12	13.53	19	0
1977	78.1	8	86	3	70.1	20	7.60	48	0
1976	76.2	42	83.3	44	69.1	44	5.13	64	0
1975	75.7	58	82.6	59	68.8	49	8.13	40	0
1974	76.9	26	84.3	21	69.4	37	4.25	70	0
1973	76.3	41	84.6	16	68	63	3.54	75	0
1972	76.5	36	84.2	24	68.8	49	8.77	35	0
1971	76.6	32	85.6	7	67.6	68	2.66	76	0
1970	74.9	72	82.4	65	67.4	73	20.53	7	0
1969	76.2	42	83.6	38	68.8	49	17.50	10	0
1968	76.5	36	84.1	27	68.9	47	9.62	28	0
1967	77.1	19	84.2	24	70	24	19.55	8	0
1966	77.1	19	84.3	21	69.8	29	7.22	53	0
1965	75.8	56	84	30	67.5	70	4.79	66	0
1964	75.3	66	83.2	45	67.5	70	7.33	52	0
1963	75.7	58	83.2	45	68.2	61	7.66	45	0
1962	75.6	61	83.7	34	67.5	70	4.15	72	0
1961	76.1	45	83.5	39	68.7	53	7.63	47	0
1960	75.5	63	82.6	59	68.5	56	12.86	20	0
1959	76.5	36	83.9	32	69.2	42	7.48	49	0
1958	76.6	32	83	48	70.3	18	16.56	12	0
1957	75.9	54	82.5	62	69.2	42	26.42	3	0
1956	75.1	70	82	70	68.3	59	18.40	9	0
1955	73.4	76	80.7	76	66.2	76	8.03	41	0
1954	76.2	42	82.9	51	69.6	34	13.62	17	0
1953	75.3	66	82.3	66	68.3	59	5.39	60	0
1952	74.3	74	81.3	74	67.3	74	6.88	55	0
1951	75.5	63	82.5	62	68.5	56	10.21	26	0
1950	75.8	56	83.5	39	68.1	62	5.35	61	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2019	80.1
2015	79.7
2020	78.7
1994	78.5
1986	78.5
2018	78.2
2004	78.2
2026	78.1
1977	78.1
2016	78
More years share the last value

Coldest
Year	Mean, °F
1955	73.4
1999	74.3
1952	74.3
1989	74.9
1970	74.9
1980	75
1956	75.1
1983	75.2
1984	75.3
1964	75.3
More years share the last value

Wettest
Year	Precipitation, in
2018	49.18
1991	26.92
1957	26.42
1982	25.45
2016	24.68
2026	20.85
1970	20.53
1967	19.55
1956	18.40
1969	17.50

Driest
Year	Precipitation, in
1971	2.66
1973	3.54
1987	3.69
2008	3.88
1962	4.15
2020	4.25
1974	4.25
2010	4.31
1997	4.75
1996	4.77

The hottest, coldest and wettest days

Hottest day: 87°F; 21 August 2026
Coldest night: 70°F; 30 August 2026
Wettest day: 6.82 in; 15 August 2026

Every month, season and year

Months

Seasons

Years

Hilo, HI the day's answers

All-time records

Every answer in words

August 2026 brought 20.85 in of precipitation in Hilo, HI, the wettest August since 2018 (2025 excluded: 5 of 31 days missing), 6th wettest of 76.
The hottest day of August 2026 in Hilo, HI: 87°F on Friday 21 August 2026.
The coldest night of August 2026 in Hilo, HI: a low of 70°F on Sunday 30 August 2026.
The wettest day of August 2026 in Hilo, HI: 6.82 in on Saturday 15 August 2026.