Honolulu weather in April: Honolulu, Hawaii: normal highs, lows, rain and records for April
Honolulu in April has a normal high of 83°F and a normal low of 70°F, a daily mean of 77°F, rising from 82°F on the 1st to 84°F by the 30th. Measurable precipitation falls on 8 days in a normal April, 0.77 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 28°C and low of 21°C, 20 mm of precipitation in April.
- NOAA stationHonolulu International Airport
- Station IDUSW00022521
- Location21.32°N 157.93°W
- Elevation7 ft (2 m)
- From the center5 miles
- Population (census place)344,967
- Jan 81° 67°
- Feb 81° 67°
- Mar 81° 68°
- Apr 83° 70°
- May 85° 72°
- Jun 87° 74°
- Jul 88° 75°
- Aug 89° 76°
- Sep 88° 75°
- Oct 87° 74°
- Nov 84° 72°
- Dec 82° 69°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Honolulu in April?
The normal high is 83°F and the normal low 70°F, for a daily mean of 76.6°F. April is 1.9°F warmer than March and 1.6°F cooler than May. April is the 8th warmest month of the year in Honolulu and the 10th wettest. Across the month the normal high rises 2°F, from 82°F on April 1 to 84°F on April 30. From one year to the next April's mean temperature typically moves about 1.1°F either way (NOAA's standard deviation), so roughly two Aprils in three average between 76°F and 78°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 27%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| April 1 | 82°F | 69°F | 27% | 8% |
| April 8 | 83°F | 70°F | 26% | 7% |
| April 15 | 83°F | 70°F | 24% | 7% |
| April 22 | 84°F | 70°F | 23% | 6% |
| April 30 | 84°F | 71°F | 22% | 6% |
Every day of April: normal high, low and chance of precipitation (warmest afternoon April 30, coldest night April 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| April 1 | 82°F | 69°F | 27% | 8% | 12 h 20 min |
| April 2 | 82°F | 69°F | 27% | 8% | 12 h 20 min |
| April 3 | 82°F | 69°F | 27% | 8% | 12 h 20 min |
| April 4 | 82°F | 70°F | 26% | 8% | 12 h 20 min |
| April 5 | 83°F | 70°F | 26% | 8% | 12 h 30 min |
| April 6 | 83°F | 70°F | 26% | 8% | 12 h 30 min |
| April 7 | 83°F | 70°F | 26% | 7% | 12 h 30 min |
| April 8 | 83°F | 70°F | 26% | 7% | 12 h 30 min |
| April 9 | 83°F | 70°F | 26% | 7% | 12 h 30 min |
| April 10 | 83°F | 70°F | 26% | 7% | 12 h 30 min |
| April 11 | 83°F | 70°F | 25% | 7% | 12 h 30 min |
| April 12 | 83°F | 70°F | 25% | 7% | 12 h 30 min |
| April 13 | 83°F | 70°F | 25% | 7% | 12 h 30 min |
| April 14 | 83°F | 70°F | 25% | 7% | 12 h 40 min |
| April 15 | 83°F | 70°F | 24% | 7% | 12 h 40 min |
| April 16 | 83°F | 70°F | 24% | 6% | 12 h 40 min |
| April 17 | 83°F | 70°F | 24% | 6% | 12 h 40 min |
| April 18 | 83°F | 70°F | 24% | 6% | 12 h 40 min |
| April 19 | 83°F | 70°F | 24% | 6% | 12 h 40 min |
| April 20 | 83°F | 70°F | 24% | 6% | 12 h 40 min |
| April 21 | 83°F | 70°F | 23% | 6% | 12 h 40 min |
| April 22 | 84°F | 70°F | 23% | 6% | 12 h 50 min |
| April 23 | 84°F | 70°F | 23% | 6% | 12 h 50 min |
| April 24 | 84°F | 71°F | 23% | 6% | 12 h 50 min |
| April 25 | 84°F | 71°F | 23% | 6% | 12 h 50 min |
| April 26 | 84°F | 71°F | 23% | 6% | 12 h 50 min |
| April 27 | 84°F | 71°F | 22% | 6% | 12 h 50 min |
| April 28 | 84°F | 71°F | 22% | 6% | 12 h 50 min |
| April 29 | 84°F | 71°F | 22% | 6% | 12 h 50 min |
| April 30 | 84°F | 71°F | 22% | 6% | 12 h 50 min |
- Normal high
- 83°FApril average
- Normal low
- 70°FApril average
- Precipitation
- 0.77 inmonth total
- Days with precipitation
- 80.01 inch or more
- Daylight
- 12 h 20 min to 12 h 50 minApril 1 to April 30
- Days at 70°F or more
- 30
- Days at 80°F or more
- 28
- Sunshine
- 83%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00022521; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Honolulu in April?
On a given April day the chance of 0.01 inch or more is 24% on average, highest around April 1 (27%). In all, 0.77 in falls on 8 days of a normal April.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00022521.
How humid and windy is Honolulu in April?
At 3 p.m. the normal temperature is 81°F with 55% relative humidity and a dew point of 64°F; at 6 a.m. it is 72°F with 76% humidity. The wind averages 10.4 mph, most often from the east-northeast in the afternoon.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 72°F | 64°F | 76% | 7.3 mph | 51% |
| 9 a.m. | 78°F | 64°F | 63% | 10.6 mph | 44% |
| noon | 81°F | 64°F | 55% | 13.7 mph | 34% |
| 3 p.m. | 81°F | 64°F | 55% | 14.2 mph | 34% |
| 6 p.m. | 78°F | 64°F | 62% | 12.6 mph | 36% |
| 9 p.m. | 75°F | 64°F | 70% | 9.5 mph | 49% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00022521. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for April in Honolulu?
The warmest April temperature on Honolulu's official record (since 1940) is 91°F, on April 28, 1996; the coldest is 56°F, on April 22, 1958. The wettest April brought 8.92 in (1963).
The April mean against the 1991-2020 normal of 76.6°F: 2021 76.3°F (−0.3), 2022 78.2°F (+1.6), 2023 78.3°F (+1.7), 2024 76.2°F (−0.4), 2025 79.3°F (+2.7), 2026 76.3°F (−0.3). 3 of 6 ran warmer than normal.
| April | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 76.3°F | −0.3°F | 0.44 in |
| 2022 | 78.2°F | +1.6°F | 0.04 in |
| 2023 | 78.3°F | +1.7°F | 2.17 in |
| 2024 | 76.2°F | −0.4°F | 1.41 in |
| 2025 | 79.3°F | +2.7°F | 0.81 in |
| 2026 | 76.3°F | −0.3°F | 2.93 in |
Source: records: ACIS, NWS threaded record HNLthr; recent months: ACIS, station USW00022521. Records and recent months use complete months only.
How does April in Honolulu compare across Hawaii?
Across the 18 places PlainClimate covers in Hawaii, April normal highs run from 70°F in Kula to 85°F in Kahului; Honolulu's is 83°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.