Monthly outlook for Niu, HI: average high 77.3°, average low 75.2°. That is 1.4° below the climate normal for October. Precipitation is expected on 7 days (about 6.9 inches), against a normal of 4 days and 1.1 inches. The warmest day looks like 3 November (80.9°), the coolest 27 October (69.3°).
77.3°/75.2°
Average high / low
−1.4°
Below normal
7 / 4
Wet days / normal
6.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
23 October – 1 November
76.5°
79.9°
-1.9°
2 November – 11 November
78.6°
79.2°
-0.3°
12 November – 21 November
at normal
78.2°
—
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).
Sat, 2477° / 76°0.02
77 °
Niu, Saturday, 24 October
Light rain. High 77°, low 76°.
Pressure30.00 inHg
Wind8 mph NE
Humidity70%
Visibility6.2 mi
Dew point66°
Sun, 2576° / 75°0.04
76 °
Niu, Sunday, 25 October
Light rain. High 76°, low 75°.
Pressure29.97 inHg
Wind10.2 mph N
Humidity68%
Visibility6.2 mi
Dew point65°
Mon, 2677° / 75°0
77 °
Niu, Monday, 26 October
Light rain. High 77°, low 75°.
Pressure29.91 inHg
Wind6.4 mph E
Humidity71%
Visibility6.2 mi
Dew point65°
Tue, 2776° / 69°2.5
76 °
Niu, Tuesday, 27 October
Heavy rain. High 76°, low 69°.
Pressure29.91 inHg
Wind14.8 mph E
Humidity92%
Visibility—
Dew point68°
Wed, 2876° / 74°1.12
76 °
Niu, Wednesday, 28 October
Rain. High 76°, low 74°.
Pressure29.88 inHg
Wind14.1 mph E
Humidity90%
Visibility—
Dew point72°
Thu, 2976° / 74°1.57
76 °
Niu, Thursday, 29 October
Rain. High 76°, low 74°.
Pressure29.83 inHg
Wind16.9 mph NE
Humidity93%
Visibility—
Dew point73°
Fri, 3075° / 73°1.25
75 °
Niu, Friday, 30 October
Rain. High 75°, low 73°.
Pressure29.83 inHg
Wind17.5 mph E
Humidity90%
Visibility—
Dew point71°
Sat, 3177° / 75°0.3
77 °
Niu, Saturday, 31 October
Light rain. High 77°, low 75°.
Pressure29.88 inHg
Wind11.3 mph NE
Humidity87%
Visibility—
Dew point73°
Sun, 0177° / 76°0
77 °
Niu, Sunday, 1 November
Partly cloudy. High 77°, low 76°.
Pressure29.97 inHg
Wind9.1 mph N
Humidity76%
Visibility—
Dew point69°
Mon, 0278° / 76°0
78 °
Niu, Monday, 2 November
Overcast. High 78°, low 76°.
Pressure30.03 inHg
Wind7.4 mph E
Humidity76%
Visibility—
Dew point69°
Tue, 0381° / 77°0
81 °
Niu, Tuesday, 3 November
Partly cloudy. High 81°, low 77°.
Pressure30.03 inHg
Wind9.4 mph SE
Humidity74%
Visibility—
Dew point70°
Wed, 0479° / 77°0
79 °
Niu, Wednesday, 4 November
Overcast. High 79°, low 77°.
Pressure30.03 inHg
Wind10.5 mph E
Humidity78%
Visibility—
Dew point71°
Thu, 0578° / 78°0.03
78 °
Niu, Thursday, 5 November
Light rain. High 78°, low 78°.
Pressure30.06 inHg
Wind13.6 mph E
Humidity84%
Visibility—
Dew point73°
Fri, 0678° / 77°0.04
78 °
Niu, Friday, 6 November
Light rain. High 78°, low 77°.
Pressure30.06 inHg
Wind14.8 mph SE
Humidity75%
Visibility—
Dew point69°
Sat, 0778° / 77°0
78 °
Niu, Saturday, 7 November
Partly cloudy. High 78°, low 77°.
Pressure30.09 inHg
Wind19.1 mph E
Humidity77%
Visibility—
Dew point69°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0879° / 74°0.04
79 °
Niu, 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 °
Niu, 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 °
Niu, 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)
Wed, 1179° / 73°0.06
79 °
Niu, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high79°
Average low73°
Average precipitation0.06 in
Chance of precipitation18%
Record high84° (2019)
Record low69° (1990)
Thu, 1278° / 73°0.06
78 °
Niu, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high78°
Average low73°
Average precipitation0.06 in
Chance of precipitation23%
Record high84° (2019)
Record low70° (1961)
Fri, 1378° / 73°0.06
78 °
Niu, Friday, 13 November
Climate normal for this date — 60-year average.
Average high78°
Average low73°
Average precipitation0.06 in
Chance of precipitation33%
Record high84° (2019)
Record low70° (2005)
Sat, 1478° / 73°0.1
78 °
Niu, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high78°
Average low73°
Average precipitation0.1 in
Chance of precipitation28%
Record high84° (2019)
Record low68° (2013)
Sun, 1578° / 73°0.09
78 °
Niu, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high78°
Average low73°
Average precipitation0.09 in
Chance of precipitation32%
Record high83° (2019)
Record low68° (1974)
Mon, 1678° / 73°0.04
78 °
Niu, Monday, 16 November
Climate normal for this date — 60-year average.
Average high78°
Average low73°
Average precipitation0.04 in
Chance of precipitation25%
Record high82° (2019)
Record low69° (1974)
Tue, 1778° / 73°0.06
78 °
Niu, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high78°
Average low73°
Average precipitation0.06 in
Chance of precipitation22%
Record high83° (2023)
Record low67° (1974)
Wed, 1878° / 72°0.19
78 °
Niu, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high78°
Average low72°
Average precipitation0.19 in
Chance of precipitation22%
Record high83° (2019)
Record low67° (2017)
Thu, 1978° / 73°0.14
78 °
Niu, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high78°
Average low73°
Average precipitation0.14 in
Chance of precipitation32%
Record high83° (2019)
Record low67° (2017)
Fri, 2078° / 73°0.09
78 °
Niu, Friday, 20 November
Climate normal for this date — 60-year average.
Average high78°
Average low73°
Average precipitation0.09 in
Chance of precipitation30%
Record high83° (2025)
Record low66° (2017)
Sat, 2178° / 73°0.04
78 °
Niu, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high78°
Average low73°
Average precipitation0.04 in
Chance of precipitation28%
Record high83° (2022)
Record low65° (2017)
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 Niu, 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 Niu, 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.