Monthly outlook for Kailua, HI: average high 78.3°, average low 76.6°. That is 1.2° below the climate normal for October. Precipitation is expected on 12 days (about 1.4 inches), against a normal of 4 days and 0.7 inches. The warmest day looks like 12 October (82.6°), the coolest 27 October (75.8°).
78.3°/76.6°
Average high / low
−1.2°
Below normal
12 / 4
Wet days / normal
1.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
78.2°
80.7°
-1.4°
22 October – 31 October
78.3°
80°
-0.9°
1 November – 10 November
at normal
79.3°
—
October records over 66 years
87.6°1 October 2020All-time high
66.6°26 October 2023All-time low
Climate normals and records are computed from the nearest reference point — Honolulu (8 mi).
Tue, 1378° / 77°0.04
78 °
Kailua, Tuesday, 13 October
Light rain. High 78°, low 77°.
Pressure29.97 inHg
Wind12.2 mph E
Humidity74%
Visibility6.2 mi
Dew point69°
Wed, 1477° / 76°0
77 °
Kailua, Wednesday, 14 October
Clear. High 77°, low 76°.
Pressure30.00 inHg
Wind8.9 mph E
Humidity66%
Visibility6.2 mi
Dew point65°
Thu, 1578° / 76°0.02
78 °
Kailua, Thursday, 15 October
Light rain. High 78°, low 76°.
Pressure30.00 inHg
Wind15.7 mph E
Humidity72%
Visibility6.2 mi
Dew point68°
Fri, 1678° / 77°0.1
78 °
Kailua, Friday, 16 October
Light rain. High 78°, low 77°.
Pressure30.03 inHg
Wind19 mph E
Humidity70%
Visibility6.2 mi
Dew point67°
Sat, 1778° / 77°0.08
78 °
Kailua, Saturday, 17 October
Light rain. High 78°, low 77°.
Pressure30.06 inHg
Wind24.6 mph E
Humidity69%
Visibility—
Dew point67°
Sun, 1878° / 77°0.17
78 °
Kailua, Sunday, 18 October
Light rain. High 78°, low 77°.
Pressure30.06 inHg
Wind23.2 mph E
Humidity74%
Visibility—
Dew point69°
Mon, 1978° / 77°0.04
78 °
Kailua, Monday, 19 October
Light rain. High 78°, low 77°.
Pressure30.06 inHg
Wind23.1 mph E
Humidity74%
Visibility—
Dew point69°
Tue, 2078° / 77°0.04
78 °
Kailua, Tuesday, 20 October
Light rain. High 78°, low 77°.
Pressure30.09 inHg
Wind24.7 mph E
Humidity71%
Visibility—
Dew point68°
Wed, 2177° / 77°0.12
77 °
Kailua, Wednesday, 21 October
Light rain. High 77°, low 77°.
Pressure30.06 inHg
Wind23.3 mph E
Humidity72%
Visibility—
Dew point68°
Thu, 2278° / 76°0.3
78 °
Kailua, Thursday, 22 October
Light rain. High 78°, low 76°.
Pressure30.03 inHg
Wind20.4 mph E
Humidity77%
Visibility—
Dew point69°
Fri, 2378° / 77°0.11
78 °
Kailua, Friday, 23 October
Light rain. High 78°, low 77°.
Pressure30.03 inHg
Wind12.8 mph E
Humidity78%
Visibility—
Dew point70°
Sat, 2479° / 77°0.17
79 °
Kailua, Saturday, 24 October
Light rain. High 79°, low 77°.
Pressure30.00 inHg
Wind11.5 mph E
Humidity79%
Visibility—
Dew point71°
Sun, 2578° / 76°0.07
78 °
Kailua, Sunday, 25 October
Light rain. High 78°, low 76°.
Pressure29.91 inHg
Wind7.9 mph NE
Humidity71%
Visibility—
Dew point67°
Mon, 2678° / 76°0.12
78 °
Kailua, Monday, 26 October
Light rain. High 78°, low 76°.
Pressure29.88 inHg
Wind6.7 mph S
Humidity74%
Visibility—
Dew point68°
Tue, 2780° / 76°0.04
80 °
Kailua, Tuesday, 27 October
Light rain. High 80°, low 76°.
Pressure29.94 inHg
Wind15.1 mph SE
Humidity74%
Visibility—
Dew point69°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2880° / 74°0.06
80 °
Kailua, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high80°
Average low74°
Average precipitation0.06 in
Chance of precipitation23%
Record high85° (2023)
Record low71° (2017)
Thu, 2980° / 74°0.06
80 °
Kailua, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high80°
Average low74°
Average precipitation0.06 in
Chance of precipitation30%
Record high86° (2023)
Record low69° (1966)
Fri, 3080° / 74°0.09
80 °
Kailua, Friday, 30 October
Climate normal for this date — 60-year average.
Average high80°
Average low74°
Average precipitation0.09 in
Chance of precipitation28%
Record high87° (2023)
Record low69° (1966)
Sat, 3180° / 74°0.07
80 °
Kailua, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high80°
Average low74°
Average precipitation0.07 in
Chance of precipitation30%
Record high85° (2023)
Record low69° (2021)
Sun, 0180° / 74°0.06
80 °
Kailua, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high80°
Average low74°
Average precipitation0.06 in
Chance of precipitation18%
Record high85° (2023)
Record low69° (2023)
Mon, 0280° / 74°0.12
80 °
Kailua, Monday, 2 November
Climate normal for this date — 60-year average.
Average high80°
Average low74°
Average precipitation0.12 in
Chance of precipitation30%
Record high87° (2023)
Record low67° (1976)
Tue, 0380° / 74°0.05
80 °
Kailua, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high80°
Average low74°
Average precipitation0.05 in
Chance of precipitation25%
Record high86° (2023)
Record low70° (1989)
Wed, 0480° / 74°0.11
80 °
Kailua, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high80°
Average low74°
Average precipitation0.11 in
Chance of precipitation20%
Record high84° (2022)
Record low69° (1992)
Thu, 0580° / 74°0.09
80 °
Kailua, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high80°
Average low74°
Average precipitation0.09 in
Chance of precipitation27%
Record high86° (2019)
Record low69° (1978)
Fri, 0680° / 74°0.07
80 °
Kailua, Friday, 6 November
Climate normal for this date — 60-year average.
Average high80°
Average low74°
Average precipitation0.07 in
Chance of precipitation32%
Record high86° (2025)
Record low69° (1973)
Sat, 0779° / 74°0.06
79 °
Kailua, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high79°
Average low74°
Average precipitation0.06 in
Chance of precipitation33%
Record high85° (2025)
Record low69° (2025)
Sun, 0879° / 74°0.04
79 °
Kailua, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high79°
Average low74°
Average precipitation0.04 in
Chance of precipitation27%
Record high85° (2023)
Record low70° (2025)
Mon, 0979° / 74°0.03
79 °
Kailua, Monday, 9 November
Climate normal for this date — 60-year average.
Average high79°
Average low74°
Average precipitation0.03 in
Chance of precipitation27%
Record high85° (2023)
Record low68° (2019)
Tue, 1079° / 73°0.02
79 °
Kailua, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high79°
Average low73°
Average precipitation0.02 in
Chance of precipitation20%
Record high85° (2019)
Record low69° (1969)
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Kailua, HI are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Kailua, HI since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.