Honolulu UV Index Today
- Current UV Index0.0
- Cloud Cover00%
- Temperature00.0 ℃
Day Summary
- Max UV Index11.4
- Avg Clouds57%
- Max Temp29.2 ℃
- Peak UV at 1 PM
- Protection Required ☀️
The UV index in Honolulu, United States 
will reach a high of 11.4 today. This means a extreme level of sun exposure. See our tips below to stay safe!
Last checked: 2025-09-02
Hourly Forecast Chart
Today's Safety Tips
Extreme danger! Avoid being in the sun, especially during midday. If you go out, cover up with clothing, a hat, and sunglasses, and use plenty of sunscreen.
Honolulu's UV Index
Honolulu's UV index is usually high, especially in summer, often ranging from 7 to 11, which means strong sunlight. The UV intensity is generally lower in winter but still significant throughout the year.
Weather Seasons
Honolulu experiences warm weather year-round with mild changes between seasons. Summers are hot and humid, while winters are cooler but still pleasant, with temperatures rarely dropping below 65°F (18°C). Rainfall is more common in winter.
Honolulu's Climate
Compared to the mainland U.S., Honolulu is much warmer and more stable throughout the year. It is sunnier and less rainy than many Pacific islands. Nearby places like Maui or Kauai have similar tropical weather but can be wetter in some areas.
Hourly UV Index Trend
See the UV index hour by hour for Honolulu. When the level is high, it's smart to find some shade.
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