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Kalihiwai, HI Weather
Kalihiwai, Hawaii sits at 22.2176, -159.4492. Its warmest month is August, when the day usually reaches 85F, and its coldest is January, when the night usually falls to 66F. July is the wettest, with rain on about 19 days. The hottest day in the station record is 91F on October 9, 2012, and the coldest night 50F on January 22, 1969. This page carries live conditions, an hour by hour timeline, a ten day outlook, radar, monthly averages and searchable daily history back to 1940.
About Kalihiwai weather
Kalihiwai sits at 22.2176, -159.4492 and covers about 2.642 square miles. The forecast above is live: current conditions lead with the HRRR model, corrected against the nearest reporting station and against radar overhead, because a model can lag a storm and the radar cannot.
The tabs at the top of this page carry the hour by hour timeline, the ten day outlook and live radar. Where the models disagree about a day, the rock says so on the day rather than quietly picking a winner.
The rock grades itself against what actually happened and publishes the result whether it flatters it or not. Those standings live in the Receipts.
Where these numbers come from
Current conditions and forecast: NOAA forecast grids (the National Weather Service digital forecast, the National Blend of Models, HRRR and GFS) decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
Radar: NOAA MRMS merged reflectivity, rendered into tiles by myweatherrock.
Monthly averages and records: computed by myweatherrock from NOAA GHCN-Daily station records at the nearest qualifying station, named on this page with its distance. Measurements, not estimates.
Daily history search: the town's own NOAA GHCN-Daily station file, held on our server, measurements by day. Months the station missed fall back to the Open-Meteo historical archive (reanalysis), and the page says so when it does.
What the weather is usually like in Kalihiwai
Kalihiwai is warmest in August, when the day usually reaches 85F, and coldest in January, when the night usually falls to 66F. July is the wettest month, with rain on about 19 days of it.
Usual high and low, by month
Days with rain, by month
The same year as numbers
Month
Usual high
Usual low
Rain days
January
78F
66F
12
February
78F
66F
12
March
78F
67F
15
April
80F
69F
16
May
81F
71F
14
June
83F
73F
18
July
84F
74F
19
August
85F
75F
18
September
85F
74F
16
October
84F
73F
17
November
81F
71F
17
December
79F
68F
18
Thirty-year normals, 1991 to 2020, computed from the daily record, measured at the Lihue Wso Ap 1020.1 station 17.8 miles away. A rain day means at least a hundredth of an inch fell, the same measurable-precipitation mark the Weather Service uses. Source: computed from the station record, NOAA GHCN daily.
Kalihiwai weather history, back to 1940
Pick any month back to 1940 and see what the archive holds for Kalihiwai: the reanalysis record of what happened, day by day.
Reading this month last year to start you off.
Kalihiwai weather records
In 103,463 days of observations Kalihiwai has been as hot as 91F and as cold as 50F. Not averages: the actual days.
Hottest day
91F
October 9, 2012
Coldest night
50F
January 22, 1969
Wettest day
12.35 in
December 2, 1957
NOAA GHCN daily station records, observed 1950 to 2025: temperature at the Lihue Wso Ap 1020.1 station, 17.8 miles away; precipitation at the Princeville Rch 1117 station, 2.1 miles away. Station measurements, not estimates. Record dates reflect the station's own observation schedule, and the official state record may live at a different station.
Common questions about Kalihiwai weather
Common questions
What is the weather usually like in Kalihiwai, HI?
Kalihiwai is warmest in August, when the day usually reaches 85F, and coldest in January, when the night usually falls to 66F. Rain falls on roughly 192 days a year, most often in July. Averages are thirty-year normals, 1991 to 2020, computed from the nearest NOAA station's own daily record.
How much does it rain in Kalihiwai, HI?
About 192 days a year see at least a hundredth of an inch, which is the Weather Service's measurable-precipitation mark. July is the wettest month with rain on about 19 of its days, and January the driest with about 12.
What is the hottest it has ever been in Kalihiwai, HI?
The hottest day measured for Kalihiwai reached 91F on October 9, 2012, and the coldest night 50F on January 22, 1969. Both are real NOAA station measurements from the GHCN daily archive, observed 1950 to 2025, at the Lihue Wso Ap 1020.1 station. Not estimates, though the official state record may live at a different station.
Can I look up past weather for Kalihiwai, HI?
Yes, and for free. The History tab on this page takes any month back to 1940 and shows every day of it: the high, the low, what fell, and that month's hottest and coldest day. No account and no payment.
Is the Kalihiwai forecast on this page free, and does it track me?
It is free, carries no advertising, and needs no account. Nothing about a visitor leaves the device except the coordinates needed to fetch a forecast, and those are not stored against anyone.