Monthly outlook for Waikapuna, HI: average high 83.2°, average low 77.3°. That is 1.9° above the climate normal for October. Precipitation is expected on 7 days (about 3.2 inches), against a normal of 7 days and 1.3 inches. The warmest day looks like 18 October (85.2°), the coolest 21 October (75.7°).
83.2°/77.3°
Average high / low
+1.9°
Above normal
7 / 7
Wet days / normal
3.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
18 October – 27 October
83.8°
79.9°
+2.1°
28 October – 6 November
82.4°
79.5°
+1.6°
7 November – 16 November
at normal
78.9°
—
October records over 66 years
89.6°30 October 2020All-time high
66.7°19 October 1999All-time low
Climate normals and records are computed from the nearest reference point — Wai?o?ahukini (9 mi).
Mon, 1985° / 77°0.07
85 °
Waikapuna, Monday, 19 October
Light rain. High 85°, low 77°.
Pressure30.09 inHg
Wind4.8 mph SW
Humidity68%
Visibility6.2 mi
Dew point61°
Tue, 2083° / 76°0.07
83 °
Waikapuna, Tuesday, 20 October
Light rain. High 83°, low 76°.
Pressure30.09 inHg
Wind4.2 mph SW
Humidity70%
Visibility6.2 mi
Dew point60°
Wed, 2182° / 76°0.09
82 °
Waikapuna, Wednesday, 21 October
Light rain. High 82°, low 76°.
Pressure30.06 inHg
Wind4.8 mph S
Humidity81%
Visibility6.2 mi
Dew point62°
Thu, 2282° / 76°0.01
82 °
Waikapuna, Thursday, 22 October
Light rain. High 82°, low 76°.
Pressure30.03 inHg
Wind6.8 mph SW
Humidity71%
Visibility6.2 mi
Dew point60°
Fri, 2385° / 77°0.02
85 °
Waikapuna, Friday, 23 October
Light rain. High 85°, low 77°.
Pressure30.06 inHg
Wind6.7 mph SW
Humidity52%
Visibility—
Dew point65°
Sat, 2484° / 79°0.06
84 °
Waikapuna, Saturday, 24 October
Light rain. High 84°, low 79°.
Pressure30.03 inHg
Wind5.7 mph SW
Humidity74%
Visibility—
Dew point74°
Sun, 2583° / 77°0.02
83 °
Waikapuna, Sunday, 25 October
Light rain. High 83°, low 77°.
Pressure30.00 inHg
Wind5.9 mph SW
Humidity73%
Visibility—
Dew point73°
Mon, 2683° / 76°0
83 °
Waikapuna, Monday, 26 October
Light rain. High 83°, low 76°.
Pressure30.00 inHg
Wind7.1 mph SW
Humidity72%
Visibility—
Dew point72°
Tue, 2784° / 76°0
84 °
Waikapuna, Tuesday, 27 October
Overcast. High 84°, low 76°.
Pressure30.00 inHg
Wind7.2 mph SW
Humidity50%
Visibility—
Dew point61°
Wed, 2883° / 76°0.02
83 °
Waikapuna, Wednesday, 28 October
Light rain. High 83°, low 76°.
Pressure30.03 inHg
Wind8.1 mph SW
Humidity59%
Visibility—
Dew point66°
Thu, 2983° / 78°0.01
83 °
Waikapuna, Thursday, 29 October
Light rain. High 83°, low 78°.
Pressure30.00 inHg
Wind7.5 mph SE
Humidity64%
Visibility—
Dew point69°
Fri, 3080° / 78°1.49
80 °
Waikapuna, Friday, 30 October
Heavy rain. High 80°, low 78°.
Pressure29.88 inHg
Wind10.8 mph E
Humidity98%
Visibility—
Dew point79°
Sat, 3181° / 79°0.52
81 °
Waikapuna, Saturday, 31 October
Light rain. High 81°, low 79°.
Pressure29.91 inHg
Wind7.1 mph W
Humidity90%
Visibility—
Dew point77°
Sun, 0185° / 79°0.02
85 °
Waikapuna, Sunday, 1 November
Light rain. High 85°, low 79°.
Pressure29.97 inHg
Wind7.8 mph W
Humidity67%
Visibility—
Dew point72°
Mon, 0283° / 80°0.8
83 °
Waikapuna, Monday, 2 November
Rain. High 83°, low 80°.
Pressure30.03 inHg
Wind10.5 mph S
Humidity83%
Visibility—
Dew point76°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0380° / 74°0.08
80 °
Waikapuna, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high80°
Average low74°
Average precipitation0.08 in
Chance of precipitation33%
Record high87° (2020)
Record low70° (1980)
Wed, 0479° / 74°0.13
79 °
Waikapuna, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high79°
Average low74°
Average precipitation0.13 in
Chance of precipitation42%
Record high86° (2020)
Record low70° (1988)
Thu, 0579° / 75°0.13
79 °
Waikapuna, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high79°
Average low75°
Average precipitation0.13 in
Chance of precipitation30%
Record high87° (2019)
Record low71° (1980)
Fri, 0679° / 75°0.06
79 °
Waikapuna, Friday, 6 November
Climate normal for this date — 60-year average.
Average high79°
Average low75°
Average precipitation0.06 in
Chance of precipitation40%
Record high86° (2019)
Record low69° (1985)
Sat, 0779° / 74°0.08
79 °
Waikapuna, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high79°
Average low74°
Average precipitation0.08 in
Chance of precipitation43%
Record high86° (2019)
Record low70° (2024)
Sun, 0879° / 74°0.06
79 °
Waikapuna, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high79°
Average low74°
Average precipitation0.06 in
Chance of precipitation33%
Record high86° (2019)
Record low70° (2024)
Mon, 0979° / 74°0.08
79 °
Waikapuna, Monday, 9 November
Climate normal for this date — 60-year average.
Average high79°
Average low74°
Average precipitation0.08 in
Chance of precipitation35%
Record high87° (2019)
Record low71° (1978)
Tue, 1079° / 74°0.06
79 °
Waikapuna, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high79°
Average low74°
Average precipitation0.06 in
Chance of precipitation25%
Record high86° (2019)
Record low68° (1978)
Wed, 1179° / 74°0.06
79 °
Waikapuna, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high79°
Average low74°
Average precipitation0.06 in
Chance of precipitation40%
Record high85° (2019)
Record low68° (2014)
Thu, 1279° / 74°0.07
79 °
Waikapuna, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high79°
Average low74°
Average precipitation0.07 in
Chance of precipitation35%
Record high86° (2019)
Record low70° (2025)
Fri, 1379° / 74°0.15
79 °
Waikapuna, Friday, 13 November
Climate normal for this date — 60-year average.
Average high79°
Average low74°
Average precipitation0.15 in
Chance of precipitation43%
Record high86° (2019)
Record low69° (2022)
Sat, 1479° / 74°0.1
79 °
Waikapuna, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high79°
Average low74°
Average precipitation0.1 in
Chance of precipitation45%
Record high85° (2019)
Record low69° (1974)
Sun, 1579° / 74°0.07
79 °
Waikapuna, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high79°
Average low74°
Average precipitation0.07 in
Chance of precipitation37%
Record high87° (2019)
Record low66° (1974)
Mon, 1679° / 74°0.07
79 °
Waikapuna, Monday, 16 November
Climate normal for this date — 60-year average.
Average high79°
Average low74°
Average precipitation0.07 in
Chance of precipitation35%
Record high86° (2019)
Record low66° (1974)
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 Waikapuna, 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 Waikapuna, 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.