How warm is it in Honolulu in April?

Daytime highs averaged 25.6 °C, night-time lows 22.7 °C. The highest value of the past 10 years was 28.3 °C (30 Apr 2025), the lowest 19.4 °C (30 Apr 2017).

How often does it rain in Honolulu in April?

On average there were 15.2 rain days (at least 1 mm) with 74.0 mm of precipitation in total.

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Honolulu weather in April: temperature & rain

Photo: Frank Schulenburg · CC BY-SA 4.0

🇺🇸 Weather in Honolulu in April

This is what the weather in Honolulu (Waikīkī, Oahu, Hawaii, USA) was like in April over the years 2017–2026.

Key facts at a glance

Prevailing weather: Light rain

Avg. daytime high

25.6 °C

24.7 °C – 26.8 °C

Avg. night-time low

22.7 °C

21.8 °C – 23.6 °C

Avg. rain days in period

15.2

51 % of days · ≥ 1.0 mm

Avg. precipitation in period

74.0 mm

35.6 mm – 153 mm

Avg. cloud cover

61 %

This data source has no sunshine hours – average cloud cover is shown instead.

Avg. sea temperature

–

Sea temperature unavailable for today (daily limit).

Extremes: Highest temperature 28.3 °C (30 Apr 2025) · Lowest temperature 19.4 °C (30 Apr 2017) · Avg. daily peak wind 26 km/h

Weather mix of all days

24Sunny
89Partly cloudy
35Cloudy
116Light rain
36Rain

Summary

On average 25.6 °C during the day and 22.7 °C at night.
On average 15.2 rain days (Rain day = at least 1.0 mm of precipitation) with 74.0 mm of precipitation in total.
Prevailing weather: Light rain.
Warmest year: 2025 (avg. 26.8 °C), coolest: 2018 (avg. 24.7 °C).
Wettest year: 2018 (153 mm), driest: 2025 (35.6 mm).
Extremes: 28.3 °C on 30 Apr 2025 and 19.4 °C on 30 Apr 2017.

Overall values from all 10 years. How is this calculated?

Temperatures per year

Average over your travel period

Precipitation & rain days

Year by year

2026
Avg. max25.4°Avg. min22.5°
Rain days
13 Rain days
Precipitation
105 mm
Avg. cloud cover
62 % cloudy
Sea temperature
–
Max 27.0 °C · Min 20.9 °C
2025
Avg. max26.8°Avg. min23.6°
Rain days
12 Rain days
Precipitation
35.6 mm
Avg. cloud cover
61 % cloudy
Sea temperature
–
Max 28.3 °C · Min 22.4 °C
2024
Avg. max25.7°Avg. min22.6°
Rain days
6 Rain days
Precipitation
36.5 mm
Avg. cloud cover
61 % cloudy
Sea temperature
–
Max 27.2 °C · Min 21.3 °C
2023
Avg. max25.7°Avg. min22.9°
Rain days
13 Rain days
Precipitation
46.7 mm
Avg. cloud cover
69 % cloudy
Sea temperature
–
Max 27.2 °C · Min 21.8 °C
2022
Avg. max25.7°Avg. min22.8°
Rain days
20 Rain days
Precipitation
63.8 mm
Avg. cloud cover
68 % cloudy
Sea temperature
–
Max 26.6 °C · Min 21.7 °C
2021
Avg. max24.8°Avg. min21.8°
Rain days
16 Rain days
Precipitation
50.0 mm
Avg. cloud cover
56 % cloudy
Sea temperature
–
Max 26.9 °C · Min 20.3 °C
2020
Avg. max25.4°Avg. min22.6°
Rain days
15 Rain days
Precipitation
65.5 mm
Avg. cloud cover
58 % cloudy
Sea temperature
–
Max 26.2 °C · Min 21.5 °C
2019
Avg. max25.6°Avg. min22.4°
Rain days
15 Rain days
Precipitation
61.8 mm
Avg. cloud cover
41 % cloudy
Sea temperature
–
Max 26.5 °C · Min 21.2 °C
2018
Avg. max24.7°Avg. min22.4°
Rain days
24 Rain days
Precipitation
153 mm
Avg. cloud cover
82 % cloudy
Sea temperature
–
Max 26.3 °C · Min 19.4 °C
2017
Avg. max26.1°Avg. min22.9°
Rain days
18 Rain days
Precipitation
122 mm
Avg. cloud cover
52 % cloudy
Sea temperature
–
Max 27.2 °C · Min 19.4 °C

Frequently asked questions

How warm is it in Honolulu in April?: Daytime highs averaged 25.6 °C, night-time lows 22.7 °C. The highest value of the past 10 years was 28.3 °C (30 Apr 2025), the lowest 19.4 °C (30 Apr 2017).
How often does it rain in Honolulu in April?: On average there were 15.2 rain days (at least 1 mm) with 74.0 mm of precipitation in total.

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Data sources

Weather data: Data obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program
Reanalysis (weather model constrained by observations) on a coarse grid of about 50 km. Values represent a large area and can differ from local conditions, especially on islands, coasts and in mountains. Snow depth is the model value for the grid cell, not the depth on the slopes. No sunshine duration.
Reanalysis (weather model constrained by observations)
Reanalysis values represent a grid cell (approx. 25–50 km) and may differ from local measurements on coasts, islands and in mountains.
Sea temperature: MUR SST data were provided by JPL under support by NASA MEaSUREs program; accessed via NOAA CoastWatch ERDDAP
Daily multi-scale ultra-high resolution (≈ 1 km) analysis of satellite measurements (infrared, microwave) and in-situ data. Represents the foundation temperature below the daily warm surface layer. (Satellite and in-situ analysis)
Place search: Natural Earth (public domain) · GeoNames (CC BY 4.0) / OpenStreetMap (ODbL)