Monthly outlook for Maunalani Heights, HI: average high 78.1°, average low 74.6°. That is 1.9° below the climate normal for August. Precipitation is expected on 4 days (about 0.4 inches), against a normal of 4 days and 0.5 inches. The warmest day looks like 9 August (81.2°), the coolest 20 August (73.9°).
78.1°/74.6°
Average high / low
−1.9°
Below normal
4 / 4
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
78.3°
81.5°
-1.8°
19 August – 28 August
77.6°
81.6°
-2.2°
29 August – 7 September
at normal
81.8°
—
August records over 66 years
88.7°11 August 2025All-time high
70.3°1 August 2024All-time low
Climate normals and records are computed from the nearest reference point — Honolulu (4 mi).
Mon, 1078° / 75°0
78 °
Maunalani Heights, Monday, 10 August
Clear. High 78°, low 75°.
Pressure29.97 inHg
Wind17.7 mph NE
Humidity73%
Visibility6.2 mi
Dew point70°
Tue, 1178° / 75°0
78 °
Maunalani Heights, Tuesday, 11 August
Mostly clear. High 78°, low 75°.
Pressure29.97 inHg
Wind18.1 mph NE
Humidity69%
Visibility6.2 mi
Dew point69°
Wed, 1277° / 74°0.01
77 °
Maunalani Heights, Wednesday, 12 August
Light rain. High 77°, low 74°.
Pressure29.97 inHg
Wind20.3 mph NE
Humidity69%
Visibility6.2 mi
Dew point67°
Thu, 1378° / 75°0.01
78 °
Maunalani Heights, Thursday, 13 August
Light rain. High 78°, low 75°.
Pressure29.97 inHg
Wind21.3 mph NE
Humidity69%
Visibility—
Dew point66°
Fri, 1477° / 74°0
77 °
Maunalani Heights, Friday, 14 August
Partly cloudy. High 77°, low 74°.
Pressure29.94 inHg
Wind20.8 mph NE
Humidity66%
Visibility—
Dew point64°
Sat, 1578° / 75°0.04
78 °
Maunalani Heights, Saturday, 15 August
Light rain. High 78°, low 75°.
Pressure29.97 inHg
Wind21 mph NE
Humidity75%
Visibility—
Dew point69°
Sun, 1679° / 75°0.05
79 °
Maunalani Heights, Sunday, 16 August
Light rain. High 79°, low 75°.
Pressure29.94 inHg
Wind17.7 mph N
Humidity74%
Visibility—
Dew point68°
Mon, 1779° / 75°0.02
79 °
Maunalani Heights, Monday, 17 August
Light rain. High 79°, low 75°.
Pressure29.94 inHg
Wind11.6 mph SW
Humidity76%
Visibility—
Dew point70°
Tue, 1879° / 75°0.02
79 °
Maunalani Heights, Tuesday, 18 August
Light rain. High 79°, low 75°.
Pressure30.06 inHg
Wind17.9 mph NE
Humidity78%
Visibility—
Dew point71°
Wed, 1977° / 74°0
77 °
Maunalani Heights, Wednesday, 19 August
Overcast. High 77°, low 74°.
Pressure30.06 inHg
Wind21.1 mph NE
Humidity70%
Visibility—
Dew point66°
Thu, 2077° / 74°0.03
77 °
Maunalani Heights, Thursday, 20 August
Light rain. High 77°, low 74°.
Pressure30.00 inHg
Wind18.1 mph E
Humidity74%
Visibility—
Dew point67°
Fri, 2179° / 74°0.03
79 °
Maunalani Heights, Friday, 21 August
Light rain. High 79°, low 74°.
Pressure29.97 inHg
Wind15.5 mph NE
Humidity74%
Visibility—
Dew point68°
Sat, 2279° / 76°0.06
79 °
Maunalani Heights, Saturday, 22 August
Light rain. High 79°, low 76°.
Pressure29.97 inHg
Wind16.8 mph NE
Humidity78%
Visibility—
Dew point70°
Sun, 2377° / 75°0.13
77 °
Maunalani Heights, Sunday, 23 August
Light rain. High 77°, low 75°.
Pressure30.00 inHg
Wind17.5 mph NE
Humidity80%
Visibility—
Dew point70°
Mon, 2477° / 74°0.01
77 °
Maunalani Heights, Monday, 24 August
Light rain. High 77°, low 74°.
Pressure30.00 inHg
Wind20 mph E
Humidity75%
Visibility—
Dew point67°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2582° / 75°0.03
82 °
Maunalani Heights, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high82°
Average low75°
Average precipitation0.03 in
Chance of precipitation15%
Record high87° (2019)
Record low71° (2006)
Wed, 2682° / 75°0.04
82 °
Maunalani Heights, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high82°
Average low75°
Average precipitation0.04 in
Chance of precipitation27%
Record high87° (2019)
Record low73° (1975)
Thu, 2782° / 75°0.03
82 °
Maunalani Heights, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high82°
Average low75°
Average precipitation0.03 in
Chance of precipitation22%
Record high87° (2025)
Record low72° (1975)
Fri, 2882° / 75°0.02
82 °
Maunalani Heights, Friday, 28 August
Climate normal for this date — 60-year average.
Average high82°
Average low75°
Average precipitation0.02 in
Chance of precipitation30%
Record high88° (2019)
Record low73° (2023)
Sat, 2982° / 75°0.02
82 °
Maunalani Heights, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high82°
Average low75°
Average precipitation0.02 in
Chance of precipitation18%
Record high88° (2019)
Record low73° (1975)
Sun, 3082° / 75°0.02
82 °
Maunalani Heights, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high82°
Average low75°
Average precipitation0.02 in
Chance of precipitation25%
Record high88° (2025)
Record low73° (1975)
Mon, 3182° / 75°0.04
82 °
Maunalani Heights, Monday, 31 August
Climate normal for this date — 60-year average.
Average high82°
Average low75°
Average precipitation0.04 in
Chance of precipitation32%
Record high88° (2019)
Record low71° (2021)
Tue, 0182° / 75°0.04
82 °
Maunalani Heights, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high82°
Average low75°
Average precipitation0.04 in
Chance of precipitation35%
Record high88° (2025)
Record low73° (2018)
Wed, 0282° / 75°0.03
82 °
Maunalani Heights, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high82°
Average low75°
Average precipitation0.03 in
Chance of precipitation28%
Record high87° (2025)
Record low73° (2018)
Thu, 0382° / 75°0.04
82 °
Maunalani Heights, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high82°
Average low75°
Average precipitation0.04 in
Chance of precipitation35%
Record high88° (2019)
Record low72° (2023)
Fri, 0482° / 75°0.04
82 °
Maunalani Heights, Friday, 4 September
Climate normal for this date — 60-year average.
Average high82°
Average low75°
Average precipitation0.04 in
Chance of precipitation30%
Record high88° (2023)
Record low70° (2023)
Sat, 0582° / 75°0.03
82 °
Maunalani Heights, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high82°
Average low75°
Average precipitation0.03 in
Chance of precipitation30%
Record high88° (2023)
Record low72° (2023)
Sun, 0682° / 75°0.02
82 °
Maunalani Heights, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high82°
Average low75°
Average precipitation0.02 in
Chance of precipitation12%
Record high88° (2025)
Record low72° (1982)
Mon, 0782° / 75°0.02
82 °
Maunalani Heights, Monday, 7 September
Climate normal for this date — 60-year average.
Average high82°
Average low75°
Average precipitation0.02 in
Chance of precipitation22%
Record high88° (2023)
Record low71° (2025)
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 Maunalani Heights, 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 Maunalani Heights, 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.