UV Index in Riverhead, New Zealand

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents of Riverhead, New Zealand, where the climate can elevate UV radiation levels, especially during mid-day hours. With UV levels ranging from 1 to 4 throughout the day, being aware of these readings is essential for preventing sunburn and promoting long-term skin health. Riverhead's temperate maritime climate exposes its residents to varying UV risks, making it important to stay informed about daily UV trends, particularly around peak hours. By keeping an eye on the UV Index, you can enjoy the outdoors safely while protecting your skin from harmful radiation.

Hourly UV Index in Riverhead

The UV Index for the day reveals a gradual increase in solar intensity as the sun climbs higher. Starting from a mild 1 at 07:00 and 08:00, the index nudges to 2 by 09:00 and peaks at 4 between 11:00 and 13:00, indicating a notable amount of UV exposure. As the afternoon progresses, the value slightly tapers off to 3 at 14:00 and dwindles down to 2 by 15:00. The evening brings a steep decline, with the index dropping to 1 at 16:00 and then to 0 after 18:00. Stay protected during the midday hours when the UV Index is at its highest!

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
Time	UVI	Category	Time to Burn
07:00	1	low	45 min
08:00	1	low	45 min
09:00	2	low	45 min
10:00	3	moderate	30 min
11:00	4	moderate	30 min
12:00	4	moderate	30 min
13:00	4	moderate	30 min
14:00	3	moderate	30 min
15:00	2	low	45 min
16:00	1	low	45 min
17:00	1	low	45 min
18:00	0	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Riverhead

The UV Index exhibits significant seasonal variation, with the highest risk months being January, February, November, and December, where the index reaches extreme levels of 14 and burn times are as short as 10 minutes. As the year progresses, the risk decreases to high in March (10) and April (7), and then tapers off to moderate levels in the summer months (June to August) with values ranging from 3 to 5. The cycle then shifts back to high in September and returns to very high in October (10). Residents and visitors are advised to take necessary precautions during the extreme and very high months, such as wearing sunscreen, protective clothing, and seeking shade, especially if spending extended periods outdoors.

Monthly Maximum UV Index for Riverhead, New Zealand

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Riverhead. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.

Data source: Statistical UV Index data for Riverhead, based on information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

Compare Riverhead UV Index with Other New Zealand Cities

The table above highlights how UV exposure in Riverhead compares to other major locations across New Zealand. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.

Riverhead's solar exposure compared to other cities in New Zealand. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Christchurch UVI	13	12	9	6	3	2	2	3	5	9	10	12
Wellington UVI	13	13	9	7	4	2	2	4	6	9	10	13
Hamilton UVI	14	14	10	7	4	3	3	5	7	10	11	13
Riverhead	14	14	10	7	4	3	3	5	7	10	11	13
Manukau City UVI	14	14	10	7	4	3	3	5	7	10	11	13
Auckland UVI	14	14	10	7	4	3	3	5	7	10	11	13