UV Index in Honolulu Today — Check Current UV Levels in Honolulu, Hawaii

Check the real-time UV index in Honolulu right now. Get the current UV level, hourly UV forecast for today, and a 7-day UV outlook for Honolulu, Hawaii. Our free UV checker helps you know exactly when sun protection is needed before heading outdoors.

Current UV Index in Honolulu

The UV index in Honolulu changes throughout the day, typically peaking between 10am and 2pm local time. Use our interactive tool above to check the current level. Tropical latitude means very high UV year-round — daily sunscreen is essential

Hourly UV Forecast for Honolulu Today

Planning outdoor activities in Honolulu, Hawaii? Check our hourly UV breakdown to find the safest windows. Morning hours before 10am and late afternoon after 4pm generally have the lowest UV levels. Our forecast updates every 15 minutes with data from Open-Meteo weather services.

7-Day UV Forecast for Honolulu

Plan your week in Honolulu with our 7-day UV index forecast. See which days will have the highest UV so you can schedule outdoor activities accordingly and prepare with the right level of sun protection.

Sun Protection Guide for Honolulu

UV Index	Level	What to Do in Honolulu
0–2	Low	Enjoy outdoor activities freely. Sunscreen optional for most skin types.
3–5	Moderate	Wear SPF 30+ sunscreen. Seek shade during midday hours in Honolulu.
6–7	High	Limit midday sun exposure. Use SPF 50+, wear a hat and sunglasses.
8–10	Very High	Minimize outdoor time between 10am–4pm. Full sun protection essential.
11+	Extreme	Avoid direct sun exposure. Stay indoors or in full shade during peak hours.

Typical UV Levels in Honolulu

Honolulu typically experiences UV index values of 11–13 during peak season (May–September) and 6–8 during the off-season. UV remains high year-round with minimal seasonal variation

Best Time for Outdoor Activities in Honolulu

The safest time for outdoor activities in Honolulu is before 10am and after 4pm when UV levels drop significantly. Throughout the year, midday UV can reach very high or extreme levels. Always check the current UV index before extended outdoor plans.

Recommended SPF for Honolulu

During peak UV season in Honolulu (May–September), dermatologists recommend SPF 50+ broad-spectrum sunscreen. Apply 15–20 minutes before sun exposure and reapply every 2 hours — or immediately after swimming or sweating. During lower UV months, SPF 30 is typically sufficient for most skin types.

Honolulu UV Index by Season

High UV Season in Honolulu

UV levels in Honolulu are highest throughout the year, with the UV index regularly reaching 11–13. During this period, unprotected fair skin can burn in as little as 10–15 minutes. Protective clothing, wide-brim hats, and UV-blocking sunglasses are recommended alongside sunscreen.

Low UV Season in Honolulu

UV levels in Honolulu drop during monsoon or rainy periods, typically measuring 6–8 on the UV index scale. While the burn risk is lower, UV radiation still reaches the surface — especially on clear days. SPF 30 is recommended for extended outdoor time even during the cooler months.

Recommended Sun Protection

• EltaMD UV Clear SPF 46 — #1 face sunscreen for daily protection. $37
• Supergoop! Glowscreen SPF 40 — Tinted primer with UV protection. $22
• Neutrogena Ultra Sheer SPF 70 — Budget body sunscreen. $10
• Banana Boat Light As Air SPF 50 — Lightweight twin pack. $15
• Roadbox UPF 50+ Sun Shirt — UV protective clothing. $19
• Outdoor Research Sombriolet Hat — UPF 50+ sun hat. $45

We may earn a commission from purchases through these links.

Related: UV Index Explained · UV Radiation Health Risks

Sun Safety FAQ for Honolulu

What is the average UV index in Honolulu?

The average UV index in Honolulu ranges from 6–8 during the low season to 11–13 during peak months (May–September). Year-round averages depend on season, cloud cover, and time of day.

When is UV highest in Honolulu?

UV is highest in Honolulu throughout the year, peaking between 10am and 2pm local time. The strongest UV months are typically May–September.

Do I need sunscreen in Honolulu?

Yes — whenever the UV index reaches 3 or higher in Honolulu, the World Health Organization recommends sun protection. During peak season (May–September), daily sunscreen use is strongly advised for all skin types.

UV Index Near Honolulu

Check UV levels in cities near Honolulu:

UV Index in Other Cities

About UV Index in Honolulu

The UV index in Honolulu, Hawaii is influenced by latitude, altitude, season, cloud cover, and ozone layer thickness. UV radiation reflects off water, sand, snow, and concrete — increasing exposure even in shaded areas. Always check the current UV index before spending extended time outdoors in Honolulu. Data is updated every 15 minutes via Open-Meteo weather services.