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Hawaii · THREADEX · 1940–2026

Honolulu, HI

21.324°N, 157.939°W · station HNLthr · 87 years of record
89°F
forecast high · Sep 2

7-Day Forecast

NWS NDFD forecast high temperature for Honolulu.
89°WED9/288°THU9/387°FRI9/488°SAT9/589°SUN9/689°MON9/7

This Day in History

Every year's high on each of the next 7 forecast dates at Honolulu — toggle a day below. The forecast line shows where it lands; the ringed bar is the hottest on record.

Ranks

#23 / 84
warmest Sep 2 in 84 yrs of record

Warmest Sep 2 ever

94°F
set in 1997

Coolest Sep 2 ever

81°F
set in 1957
Forecast high 89°F — 23rd warmest Sep 2 of 84 years · record 94°F (1997) · warmest since 2025.
1940: 86°F1941: 87°F1942: 88°F1943: 87°F1944: 86°F1945: 89°F1946: 86°F1947: 88°F1950: 85°F1951: 83°F1952: 85°F1953: 84°F1954: 87°F1955: 84°F1956: 85°F1957: 81°F1958: 84°F1959: 89°F1960: 86°F1961: 86°F1962: 88°F1963: 88°F1964: 88°F1965: 87°F1966: 88°F1967: 89°F1968: 88°F1969: 89°F1970: 86°F1971: 88°F1972: 87°F1973: 89°F1974: 86°F1975: 90°F1976: 90°F1977: 88°F1978: 88°F1979: 91°F1980: 89°F1981: 88°F1982: 87°F1983: 91°F1984: 93°F1985: 89°F1986: 92°F1987: 90°F1988: 90°F1989: 88°F1990: 91°F1991: 90°F1992: 89°F1993: 87°F1994: 92°F1995: 90°F1996: 87°F1997: 94°F1998: 89°F1999: 87°F2000: 89°F2001: 89°F2002: 90°F2003: 89°F2004: 92°F2005: 93°F2006: 88°F2007: 88°F2008: 89°F2009: 90°F2010: 87°F2011: 89°F2012: 87°F2013: 87°F2014: 92°F2015: 87°F2016: 90°F2017: 89°F2018: 83°F2019: 93°F2020: 89°F2021: 90°F2022: 89°F2023: 89°F2024: 91°F2025: 89°F89° forecast80859095194019501960197019801990200020102020
📖 Honolulu's full Climate Almanac →

The Numbers

Forecast high · Sep 289°F
Hottest this date since2025
This-date record94°F
This-date rank#23 of 84
Hottest at any time since2026
All-time record95°F (1994)
Odds to tie/break0.0% (daily)
Period of record1940–2026

Record Book

The hottest and coldest ever recorded at Honolulu in each calendar month, and for the whole 1940–2026 record — with the year each was set.
MonthRecord HighRecord Low
Jan88°FJan 21, 199652°FJan 20, 1969
Feb88°FFeb 11, 198453°FFeb 1, 1976
Mar89°FMar 17, 196055°FMar 17, 1955
Apr91°FApr 28, 199656°FApr 22, 1958
May93°FMay 31, 198860°FMay 20, 1985
Jun92°FJun 1, 194565°FJun 6, 1955
Jul94°FJul 15, 199566°FJul 23, 1955
Aug95°FAug 31, 201965°FAug 19, 2009
Sep95°FSep 19, 199464°FSep 22, 2019
Oct94°FOct 6, 198461°FOct 27, 1993
Nov93°FNov 6, 198657°FNov 25, 1990
Dec89°FDec 13, 197754°FDec 20, 1962
All-time95°FSep 19, 199452°FJan 20, 1969

2026 Records So Far

Records set or tied at Honolulu so far this year — through Aug 30.

Record Highs in 2026

1 broke
plus 1 tied — daily record highs set this year

Record Lows in 2026

0 broke
plus 0 tied — daily record lows set this year

Record Warm Nights & Cold Days

Two more daily records, kept separate from the rankings: the warmest a night has ever stayed (record high minimum) and the coldest a day has ever gotten (record low maximum) — the flip side of the usual record high and low.

Warmest low ever

82°F
record high minimum — the night it never cooled · Sep 5, 2019

Coldest high ever

68°F
record low maximum — the day it never warmed · Jan 13, 1979
MonthWarmest lowColdest high
Jan76°FJan 14, 197468°FJan 13, 1979
Feb77°FFeb 6, 199670°FFeb 14, 1955
Mar76°FMar 15, 202369°FMar 5, 1954
Apr77°FApr 4, 201872°FApr 7, 1989
May78°FMay 22, 200473°FMay 7, 1981
Jun79°FJun 19, 201979°FJun 14, 1956
Jul80°FJul 31, 201878°FJul 28, 1954
Aug81°FAug 22, 201578°FAug 24, 1957
Sep82°FSep 5, 201979°FSep 17, 1963
Oct79°FOct 21, 198374°FOct 31, 1978
Nov79°FNov 4, 201770°FNov 17, 1956
Dec78°FDec 4, 196669°FDec 5, 2021
All-time82°FSep 5, 201968°FJan 13, 1979

Hot Streaks

Current run

0 days
consecutive days with a high ≥ 90°F

Longest ever

41 days
record run, ended Oct 5 1995

So far in 2026

12 days
days with a high ≥ 90°F this year

Climate Normals

Normal high & low by month, from Honolulu's own 1991–2020 record. Today's normal high: 89°F · forecast is +0° vs normal.
Jan: 80°FJan: 67°FFeb: 80°FFeb: 67°FMar: 81°FMar: 68°FApr: 83°FApr: 70°FMay: 85°FMay: 72°FJun: 87°FJun: 74°FJul: 88°FJul: 75°FAug: 89°FAug: 76°FSep: 88°FSep: 75°FOct: 87°FOct: 74°FNov: 84°FNov: 72°FDec: 82°FDec: 69°FJFMAMJJASOND

Sun & Location

Sun & Daylight Today

Sunrise5:15 AM
Sunset5:48 PM
Solar noon11:32 AM
Daylight12h 33m · losing 8 min/wk
Local standard time (no DST), level horizon.

Location

21.32°N, 157.94°WHawaii

Nearby Stations

Lihue, HI100 mi NWKahului, HI101 mi EHilo, HI217 mi SECold Bay, AK2355 mi NEureka, CA2386 mi NEUkiah, CA2389 mi NE

The Last 6 Weeks

Honolulu's observed daily high for the last six weeks — a white ring marks any day that broke or tied its daily record for that date.
Honolulu, HI — last six weeks of daily high

2026 So Far

Every day this year against Honolulu's own record — the record high, the normal, and the full span ever seen. A shareable look at where the year stands.
Honolulu, HI — 2026 daily high trace
Download year chart

Every Day Since 1940

Each cell is one day's high at Honolulu, coloured by temperature — 87 years of record, so heat waves read as warm streaks and cold snaps as blue.
Honolulu, HI daily high heat map 1940–2026

Days Above the Mark

How many days a year hit a given high at Honolulu — counted through Sep 2 each year, so you can see whether 2026 is running hot. Pick a threshold:
12 days ≥90°F so far in 2026 — the 36th most in 87 years. Normal for this point: 14. Record: 70 in 2019.

Share Card

A ready-to-share summary of Honolulu's outlook — post it, or link this page.
Honolulu, HI hot share card
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