UV index for Nadi peaks at UV 12 at 12:00 local time. Data as of (Pacific/Fiji). Values update hourly — see this page for the current reading and hourly forecast.

uvi·today

UV Index in Nadi

Live UV index for Nadi, Fiji — current level, hourly UV forecast, peak times, WHO sun protection advice and a 4-day outlook. Now: UV 0 (Low). Peak today: UV 12 at 12:00.

Now · 05:00 · Nadi
0
Low
0–2Low3–5Moderate6–7High8–10Very High11+Extreme

Sun protection needed today: 08:00–16:00

Protection guidelines:

Max today · 12:00 — UV 12 · Extreme · Clear sky: 13 at 12:00

  • Avoid being outside during midday hours
  • Make sure you seek shade
  • Shirt, broad-spectrum sunscreen and hat are a must
Values are forecasts from the European CAMS model (Copernicus), not measurements from a sensor in Nadi. WHO · Methodology
Today's UV overview · Sun, Oct 11
1
7Mainly clear23°83%3
3
8Mainly clear25°72%5
6
9Mainly clear27°64%5
9
10Partly cloudy28°58%6
11
11Partly cloudy29°55%6
12
12Mainly clear30°51%6
10
13Partly cloudy30°50%6
7
14Mainly clear29°51%7
4
15Clear sky29°43%6
2
16Clear sky28°48%6
% HumidityWind m/s
Max today
12at 12:00
Max tomorrow
10at 12:00
Daylight today
12h 25m05:44–18:09
Solar noon
11:57

Sun & moon in Nadi

Sun height-2°
Sun directionE 98°
Sky stateCivil twilight
-90°-60°-30°0°30°60°90°00:0006:0012:0018:0024:00Now -2°

The curve traces the sun's height above the horizon through the day: 0° is the horizon, 90° is straight overhead. The higher the sun climbs, the shorter the path its rays take through the atmosphere — and the stronger the UV. The part below 0° is night.

Sunrise / sunset directionE 97° / W 262°
Civil twilight05:22–05:44 / 18:09–18:31
Nautical twilight04:57–05:22 / 18:31–18:57
Astronomical twilight04:31–04:57 / 18:57–19:23
Moon phaseNew moon · 0%
Moonrise / moonset05:41 / 18:35
Next moon quarterFirst quarter · Oct 19, 04:13

Detailed hourly UV index — Today, Oct 11

Peak UV 11.8 at 12:00 · Nadi · Local time (GMT+12)

The solid line is the hourly UV forecast: the UV index expected each hour, with cloud cover taken into account. The dashed line is the clear-sky UV, the level it would reach under a cloudless sky. The gap between the two lines shows how much the clouds are lowering the UV.

04812Max: 12Now: 06:0021°9:0027°12:0030°15:0029°18:0025°21:0022°
ForecastClear sky

Detailed hourly UV index — Tomorrow, Oct 12

Peak UV 9.9 at 12:00 · Nadi · Local time (GMT+12)

04812Max: 106:0019°9:0027°12:0029°15:0028°18:0024°21:0021°
ForecastClear sky
Hour-by-hour UV index for today & tomorrow

Detailed hour-by-hour UV index forecast for Nadi — today and tomorrow. Includes UV level, clear-sky UV, weather conditions, and temperature for each hour.

Today — Oct 11

HourUVClear skyWeather
05:000.0 – Low0.0Mainly clear20°
06:000.1 – Low0.1Mainly clear21°
07:000.8 – Low0.9Mainly clear23°
08:002.7 – Moderate3.1Mainly clear25°
09:005.8 – High6.5Mainly clear27°
10:009.2 – Very High10.0Partly cloudy28°
11:0011.2 – Extreme12.6Partly cloudy29°
12:0011.8 – Extreme13.2Mainly clear30°
13:0010.1 – Very High11.7Partly cloudy30°
14:007.3 – High8.6Mainly clear29°
15:004.3 – Moderate5.0Clear sky29°
16:001.8 – Low2.1Clear sky28°
17:000.5 – Low0.5Mainly clear26°
18:000.0 – Low0.0Clear sky25°
19:000.0 – Low0.0Clear sky23°
20:000.0 – Low0.0Clear sky22°
21:000.0 – Low0.0Clear sky22°

Tomorrow — Oct 12

HourUVClear skyWeather
05:000.0 – Low0.0Mainly clear19°
06:000.1 – Low0.1Mainly clear19°
07:000.7 – Low0.9Mainly clear22°
08:002.5 – Low3.1Mainly clear25°
09:005.1 – Moderate6.4Mainly clear27°
10:007.7 – Very High9.8Partly cloudy28°
11:009.8 – Very High12.3Overcast29°
12:009.9 – Very High12.9Overcast29°
13:008.6 – Very High11.4Overcast29°
14:006.1 – High8.3Overcast29°
15:003.6 – Moderate4.8Partly cloudy28°
16:001.6 – Low2.0Partly cloudy27°
17:000.4 – Low0.5Mainly clear26°
18:000.0 – Low0.0Clear sky24°
19:000.0 – Low0.0Clear sky23°
20:000.0 – Low0.0Clear sky22°
21:000.0 – Low0.0Clear sky21°

4-Day UV Forecast for Nadi

The 4-day UV index forecast shows each day's peak UV and the time it's reached, plus daily high and low temperatures and an hourly UV curve, so you can plan sun protection for the days ahead.

Today, Oct 11Peak UV 12 at 12:00Sun protection: 08:00–16:0030° / 20°
6Mainly clear21°9Mainly clear27°12Mainly clear30°15Clear sky29°18Clear sky25°
Monday, Oct 12Peak UV 10 at 12:00Sun protection: 09:00–16:0029° / 18°
6Mainly clear19°9Mainly clear27°12Overcast29°15Partly cloudy28°18Clear sky24°
Tuesday, Oct 13Peak UV 8 at 12:00Sun protection: 08:00–16:0031° / 18°
6Clear sky18°9Mainly clear26°12Overcast31°15Overcast30°18Partly cloudy25°
Wednesday, Oct 14Peak UV 7 at 12:00Sun protection: 08:00–16:0031° / 17°
6Mainly clear17°9Partly cloudy26°12Partly cloudy30°15Overcast30°18Overcast25°

Peak midday UV by month in Nadi

It's October: on clear days, the midday sun here usually peaks around UV 11–15. That's very intense: around midday you need shade, covering clothes and sunscreen.

The sun is strong here all year round: even in the mildest months, midday UV reaches about 8, so protection is needed in every season. Treat these numbers as the most sun you should expect around noon: clouds typically lower the real value, while reflections from snow, sand or water can add to the UV your skin actually receives. Today's actual UV is in the forecast above.

36811141714–16Jan14–17Feb12–16Mar9–13Apr7–10May6–8Jun6–8Jul8–11Aug10–13Sep11–15Oct13–15Nov13–16Dec

Each bar shows the range the midday UV index moves through on clear days in that month, from the gentlest days up to what the strongest days typically reach, based on 17 years of satellite data (2004–2020). The small light line inside a bar is an ordinary day's midday level.

Based on TEMIS data. Copyright © KNMI/ESA — https://www.temis.nl/

In October the strong sun is in the southern hemisphere: UV reaches high levels across most of it, while the northern hemisphere outside the tropics has its mild season.

See the world map for October →

The UV year at a glance

Strongest sunFeb · up to 17
Weakest sunJun–Jul · up to 8
Protection needed (UV 3+)all year
Extra protection (UV 8+)all year

Months when the midday sun gets strong enough to need protection. Based on clear days; clouds typically lower UV.

UV in Nadi: today, tomorrow and through the year

In Nadi, the UV index reads 0 (low) right now, and the day tops out at 12 (extreme) around 12:00, so it's worth covering up between 08:00 and 16:00. Clear conditions leave the sun barely filtered today.UV backs down tomorrow, peaking near UV 10 (very high) around 12:00, but the hours from 09:00 to 16:00 still call for protection. It turns cloudier later in the week, which should ease the UV.Across the year, October sits near the top of the UV range in Nadi: its strongest days reach about UV 15, and even the quietest months stay around UV 8.

Location, daylight and sky in Nadi

Key facts

CountryFiji, Western
TimezonePacific/Fiji (UTC+12)
Coordinates17.80° S, 177.42° E
Elevation7 m
Population≈ 42.3K
Air pressurebarometer.today

Sun & Daylight Hours in Nadi

Sunrise / sunset05:44 / 18:09
Daylight today12h 25m
Daylight tomorrow12h 26m (+1 min)
Solar noon (sun highest)11:57
Golden hour17:40–18:23
Low UV hours (UV < 3)05:00–08:00
16:00–18:00
High UV window (UV ≥ 3)08:00–16:00

Seasonal daylight range at this latitude

Longest day13h 12m (Dec 21)
Shortest day11h 04m (Jun 21)

UV index map for Nadi and nearby cities

This map shows the current UV forecast for Nadi and the area around it. One forecast value covers a region of roughly 40 km, so it is a good guide for the area as a whole rather than an exact reading for one spot. In places with big height differences, or where the ground is covered by snow, the real UV can differ from what the map shows.

Check UV in: Tauranga · Hamilton · Manukau · Auckland · North Shore

Air quality concerns? Check air quality in Nadi on AirIndex.Today

What is the UV index in Nadi right now?

As of 05:00 local time, the UV index in Nadi is 0 (Low). UV changes hour by hour. See the hourly chart above for how it rises and falls today.

What is the UV index in Nadi today?

On 2026-10-11, the peak UV index forecast for Nadi is 12, expected around 12:00 local time. Check back daily: UV levels change with cloud cover, ozone, and sun angle.

What is the UV index in Nadi tomorrow?

On 2026-10-12, the UV index in Nadi is forecast to peak at 10 around 12:00 local time. Plan outdoor activities and sun protection around that peak.

What are typical maximum UV levels in Nadi by month?

Peak midday UV index in Nadi, month by month
MonthPeak midday UV
January14–16
February14–17
March12–16
April9–13
May7–10
June6–8
July6–8
August8–11
September10–13
October11–15
November13–15
December13–16
The weakest sun is in June and July, when midday UV stays around 6–8. From there it climbs: August (8–11), September (10–13), October (11–15), November (13–15), December (13–16), and January (14–16). The strongest sun is in February, reaching 14–17 on clear days. It eases back through March (12–16), April (9–13), and May (7–10).Clear-sky range, 17 years of satellite data (2004–2020). On cloudy days values are typically lower.

How strong is UV in Nadi in October?

In a typical October, the midday UV index in Nadi reaches 11–15 on clear days, based on 17 years of satellite data (2004–2020). Cloudy days typically run lower. Check the live forecast for today's value.

Which months have the highest UV in Nadi?

UV in Nadi is highest in February, when the midday index reaches up to 17 on clear days. The weakest sun is in June–July, around 6–8 at midday.

When do you need sun protection in Nadi?

All year round: midday UV in Nadi reaches 3 or higher (the WHO protection level) in every month. In every month it can reach UV 8 or more. The WHO then advises extra protection: avoid the midday sun and cover up.

Forecast · UV Index

Now
UV 0 (Low)
Max today
UV 11.8 · 12:00
Max tomorrow
UV 9.9 · 12:00
Clear sky
UV 13.2
Sunrise / Sunset
05:44 / 18:09
High UV window (UV ≥ 3)
08:00–16:00
4-Day UV Forecast
Sun 11.8 · Mon 9.9 · Tue 8.3 · Wed 7.3

UV guides

Read all guides →
About the UV Index

What is the UV index?

The UV index (UVI) is an international standard measure of the strength of ultraviolet radiation from the sun at a particular place and time. It ranges from 0 (nighttime) to 11+ (extreme). Higher values mean greater risk of sunburn, skin damage, and eye injury. The UV index was developed by the World Health Organization (WHO) to help people protect themselves from harmful UV radiation.

How do I check the UV index today?

This page shows the live UV index for your location using data from the Copernicus Atmosphere Monitoring Service (CAMS). You get the current UV level, an hourly UV forecast chart for today and tomorrow, and the exact peak UV time — so you always know when sun protection is most important.

When is UV radiation strongest?

UV radiation is typically strongest between 10:00 and 16:00, when the sun is highest in the sky. However, the exact peak time and intensity depend on your latitude, the season, altitude, cloud cover, and ozone levels. Check the UV forecast chart above to see today's exact peak time for your location.

How can I protect myself from UV radiation?

Apply broad-spectrum sunscreen, wear protective clothing and a wide-brimmed hat, seek shade during peak UV hours, and wear UV-blocking sunglasses. The WHO recommends sun protection when the UV index is 3 or above.

Where does the UV data come from?

The hourly UV index on this site comes from the Copernicus Atmosphere Monitoring Service (CAMS), operated by ECMWF on behalf of the European Union. CAMS calculates the UV biologically effective dose using total column ozone, aerosol optical depth, and cloud cover. The global forecast has a spatial resolution of approximately 40 km and provides hourly UV index values for up to 5 days ahead.

What does "clear-sky UV index" mean?

The clear-sky UV index shows how strong ultraviolet radiation would be if there were no clouds at all. It is calculated using the same atmospheric data — ozone column thickness, aerosol concentrations, and solar angle — but assumes completely cloudless conditions. Comparing the actual UV index with the clear-sky value shows how much clouds are reducing UV exposure at any given time. On overcast days, actual UV can be significantly lower than the clear-sky value.

How often is the UV forecast updated?

The CAMS global UV forecast is updated twice daily, based on model runs initialized at 00:00 and 12:00 UTC. Weather data such as temperature, cloud cover, and sunrise/sunset times is updated every 1–6 hours depending on the region, using weather models from national meteorological services via Open-Meteo. The first 1–2 days of the forecast are typically the most accurate.

What does the WHO recommend for each UV level?

Low (0–2) — No protection needed. You can safely enjoy being outside
Moderate (3–5) — Seek shade during midday hours. Wear a shirt, apply broad-spectrum sunscreen, and put on a hat. Wear UV-blocking sunglasses
High (6–7) — Seek shade during midday hours. Wear a shirt, apply broad-spectrum sunscreen, and put on a hat. Wear UV-blocking sunglasses
Very High (8–10) — Avoid being outside during midday hours. Make sure you seek shade. Shirt, broad-spectrum sunscreen and hat are a must
Extreme (11+) — Avoid being outside during midday hours. Make sure you seek shade. Shirt, broad-spectrum sunscreen and hat are a must

Source: WHO Global Solar UV Index, 2002

uvi·today

Disclaimer: This website is for informational purposes only and does not constitute medical advice, diagnosis, or treatment. UV index data and sun protection guidance are approximate and should not replace professional advice. UV index data is not applicable to infants under 12 months. The WHO recommends keeping them out of direct sunlight at all times. WHO. UV forecasts are based on satellite and atmospheric models. Actual UV levels may vary due to local cloud cover, surface reflection, altitude, and other environmental factors. When in doubt, consult a healthcare provider for personalized sun protection advice. UV and weather data is sourced from third-party APIs (Open-Meteo/CAMS). We do not guarantee accuracy or availability. Data may be delayed or temporarily unavailable.

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UV & weather data: Open-Meteo (CAMS/Copernicus) · Protection guidelines: WHO Global Solar UV Index, 2002 · Location data: GeoNames (CC BY 4.0) · IP2Location LITE · Yr / NRK (CC BY 4.0) · Twemoji (CC BY 4.0)

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