Weather radar Honolulu
Real-time precipitation radar · Hawaii · United States
Honolulu climate table – average temperature, precipitation & sunshine hours
The climate table for Honolulu shows long-term monthly averages (2000–2023): average high and average low temperature in °C, monthly precipitation (mm), rainy days and sunshine hours per month. Data source: ERA5 reanalysis (ECMWF) via the WDTEC Climate Archive.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 24.7° | 24.3° | 24.6° | 25.3° | 26.4° | 27.2° | 27.7° | 28.1° | 28.2° | 27.6° | 26.4° | 25.2° |
| Avg low (°C) | 21.1° | 20.8° | 20.9° | 21.7° | 22.5° | 23.4° | 23.9° | 24.2° | 24.2° | 23.8° | 23° | 21.8° |
| Precipitation (mm) | 39 | 40 | 56 | 32 | 29 | 21 | 21 | 25 | 21 | 33 | 40 | 54 |
| Rainy days | 7 | 7 | 10 | 10 | 8 | 7 | 7 | 7 | 7 | 8 | 7 | 7 |
| Sunshine hours | 300 | 282 | 321 | 339 | 374 | 374 | 383 | 365 | 334 | 326 | 296 | 290 |
| Humidity | – | – | – | – | – | – | – | – | – | – | – | – |
Best time to visit Honolulu
The best time to visit Honolulu is typically July. In this month the average high is 27.7°C, precipitation is 21 mm and sunshine duration is 383 hours. The annual average high is 26.3°C, total annual precipitation is 411 mm (92 rainy days/year) and annual sunshine is 3984 hours.
Frequently asked questions about the weather in Honolulu
How up to date is the weather radar for Honolulu?
The weather radar for Honolulu is updated every 5 minutes with new radar data from the US NEXRAD network. A 2-hour forecast animation is also available. Rainfall probability, wind gusts and UV index are available up to 14 days in advance.
What weather data is available for Honolulu?
Besides the rain radar, RadarWeather provides for Honolulu: rainfall probability, thunderstorm warning (CAPE index), wind gusts, UV index, air pressure, humidity, dew point, sunshine hours, snow line and a 14-day forecast based on ICON-D2, ECMWF IFS and GFS.
When are thunderstorms expected in Honolulu?
The thunderstorm potential for Honolulu is calculated from the CAPE index and lightning potential. Active storm cells and severe weather warnings are visible on the radar map in real time. Thunderstorm warnings are issued automatically as soon as storm cells are detected near Honolulu.
What is the climate like in Honolulu?
Honolulu has an annual average high of 26.3°C. The warmest month is September (avg high 28.2°C), the coldest February (avg low 20.8°C). The wettest month is March with 56 mm, the driest June with 21 mm. Total annual precipitation is 411 mm (92 rainy days). Annual sunshine is 3984 hours.
Weather radar near Honolulu
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