Nuku‘alofa weather in July

In July, Nuku‘alofa sees average daytime highs of 23°C and overnight lows near 22°C, with 96 mm of rain across 8.4 wet days and about 10.8 hours of daylight. It is the 10th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 23°C through the month. The sky is clear or mostly clear about 28% of the time in July, and the air most often feels comfortable.

Daylight stretches from about 10 h 42 min at the start of July to 11 hours by month's end. Set against the rest of the year, July is Nuku‘alofa's 3rd-clearest and 3rd-windiest month. For the whole year in context, see Nuku‘alofa's year-round climate.

Daytime high
23°
10th warmest
Overnight low
22°
3rd coldest
Rainfall
96 mm
8.4 wet days
Daylight
10 h 48 min
7:22 AM – 6:11 PM
Cloud cover
61%
3rd clearest
Wind
25 km/h
3rd windiest
Solar energy
3.44 kWh/m²
Travel score
7.0
out of 10

Nuku‘alofa is capital city of Tonga.

Density
1,963/km²
people per km²
Founded
1795

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 23°C through the month.

A typical July day in Nuku‘alofa reaches about 23°C in the afternoon and slips back to 22°C overnight — a 1°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 24°C. Set against its neighbours, July runs about 1°C cooler than June and on par with August.

18°20°22°24°26°151015202531
Avg high (°C)Avg low (°C)
12322
22322
32322
42322
52322
62322
72322
82322
92322
102322
112322
122322
132322
142322
152322
162322
172322
182322
192322
202322
212322
222322
232322
242322
252322
262322
272322
282322
292322
302322
312322

Nuku‘alofa weather by month

How July compares with the rest of the year at a glance. July is the 10th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 25°19515.513.15.7
Feb27° / 26°20316.512.75.3
Mar27° / 26°23018.312.15.3
Apr26° / 25°16713.411.56.0
May25° / 24°10310.1116.8
Jun24° / 23°1068.810.77.0
Jul23° / 22°968.410.87.0
Aug23° / 21°1098.611.36.9
Sep23° / 22°1069.511.96.9
Oct23° / 22°938.512.57.1
Nov25° / 23°999.2136.9
Dec26° / 25°10512.113.36.4

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 28% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 21% of July, with mostly cloudy or overcast conditions the remaining 52%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14555
24555
34654
44654
54654
64753
74753
84852
94852
104852
114951
124951
134951
145050
154951
164951
175050
184951
194951
204951
215050
224951
234951
244951
254951
264951
274951
285050
294951
305050
315050

Chance of precipitation in July

Any precipitation

Nuku‘alofa gets around 96 mm of rain over 8.4 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 27% and peaks near 29% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
128
228
328
429
529
629
729
829
928
1028
1127
1227
1326
1426
1526
1625
1725
1825
1925
2025
2126
2226
2326
2427
2527
2627
2728
2827
2927
3027
3127

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

Most of July feels comfortable — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, July lands in the comfortable band about 29% of days. Sticky, muggy-or-worse air turns up on roughly 35% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1526322611
2526322611
3526332610
4526332610
552733269
652733269
752733269
852832268
962832268
1062932268
1162931268
1263031268
1363030268
1463129268
1563129268
1673228268
1773227267
1873227267
1983227267
2083227267
2183226267
2293126277
2393126277
2493026278
2593026278
2692926278
2792926278
2892927278
2992927278
3092927278
3192927278

Wind in July

Winds average 25 km/h in July.

Across July, daily wind ranges from about 25 km/h on the calmest days to 25 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
125breezy
225breezy
325breezy
425breezy
525breezy
625breezy
725breezy
825breezy
925breezy
1025breezy
1125breezy
1225breezy
1325breezy
1425breezy
1525breezy
1625breezy
1725breezy
1825breezy
1925breezy
2025breezy
2125breezy
2225breezy
2325breezy
2425breezy
2525breezy
2625breezy
2725breezy
2825breezy
2925breezy
3025breezy
3125breezy

Sunrise & sunset in July

DaylightNight

Daylight runs from about 10 h 42 min at the start of July to 11 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over July. Sunrise moves from 7:22 AM to 7:17 AM, and sunset from 6:06 PM to 6:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.77:226:06
210.77:226:06
310.77:226:07
410.77:226:07
510.77:226:07
610.87:226:08
710.87:226:08
810.87:226:08
910.87:226:09
1010.87:226:09
1110.87:226:09
1210.87:226:10
1310.87:226:10
1410.87:226:11
1510.87:226:11
1610.87:226:11
1710.87:216:12
1810.87:216:12
1910.97:216:12
2010.97:216:13
2110.97:206:13
2210.97:206:14
2310.97:206:14
2410.97:196:14
2510.97:196:15
2610.97:196:15
2711.07:186:16
2811.07:186:16
2911.07:186:16
3011.07:176:17
3111.07:176:17

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 3.44 kWh/m².

For context, solar energy here swings from a low near 3.27 kWh/m² to a high of 6.69 kWh/m² in December across the year — July's 3.44 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.3Moderate
23.3Moderate
33.3Moderate
43.3Moderate
53.3Moderate
63.3Moderate
73.3Moderate
83.3Moderate
93.4Moderate
103.4Moderate
113.4Moderate
123.4Moderate
133.4Moderate
143.4Moderate
153.4Moderate
163.4Moderate
173.5Moderate
183.5Moderate
193.5Moderate
203.5Moderate
213.5Moderate
223.5Moderate
233.5Moderate
243.5Moderate
253.6Moderate
263.6Moderate
273.6Moderate
283.6Moderate
293.6Moderate
303.7Moderate
313.7Moderate
Planning a trip in July

Is July a good time to visit Nuku‘alofa?

Our two travel scores rate July for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

7.0
Sightseeing
2nd-best month of the year
5.4
Beach & pool
8th-best month of the year

July is one of the better times to visit Nuku‘alofa for general sightseeing.

What to pack for Nuku‘alofa in July

From July's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In July, Nuku‘alofa sees daytime highs around 23°C and nights near 22°C. Worth packing: light clothes, rain gear and a windbreaker. About 8 days see rain.

light clothesrain geara windbreaker

Sea temperature near Nuku‘alofa in July

The nearest coast averages about 24°C in July — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in March at about 28°C and coldest in August near 24°C.

The water stays above 20°C all year — warm enough for a swim any month.

22°24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb28Warm
Mar28Warm
Apr27Warm
May26Warm
Jun25Warm
Jul24Warm
Aug24Refreshing
Sep24Refreshing
Oct24Warm
Nov25Warm
Dec26Warm

UV index in Nuku‘alofa in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Nuku‘alofa peaks around February 12 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 7 (high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeFeb 12UV 16Jun 23UV 7
UV index (midday)Level
Jan15Extreme
Feb16Extreme
Mar14Extreme
Apr10Very high
May7Very high
Jun7High
Jul7High
Aug8Very high
Sep11Extreme
Oct14Extreme
Nov13Extreme
Dec13Extreme
Location & terrain

Where is Nuku‘alofa?

Nuku‘alofa sits at 21.1°S, 175.2°W, 1 m above sea level, in Tonga. The nearest listed city is Alofi, 598 km away.

Topography around Nuku‘alofa

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Nuku‘alofa.

Within 3 km, the terrain around Nuku‘alofa has only modest variations in elevation — a maximum elevation change of 21 m around an average of 3 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 73 m; within 80 km, significant variations in elevation — a maximum elevation change of 299 m.

The land around Nuku‘alofa is covered by water (52%) and artificial surfaces (20%) within 3 km, water (68%) within 16 km, and water (97%) within 80 km.

3 km
21 m
16 km
73 m
80 km
299 m
treesgrasslandartificial surfaceswatermangroves
July weather nearby: Alofi 598 km · Levuka 668 km · Nasinu 741 km · Suva 746 km · Lami 749 km · Labasa 775 km · Sigatoka 833 km · Nadi 858 km

Tonga travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type I
230 V · 50 Hz
Prices
≈ 75% of US
price level, 2025
GDP per capita
$6,547
2025
Safe drinking water
30%
of population, 2024
Homicide rate
0.9
per 100k, 2019
Road deaths
33
per 100k/yr, 2019
Income group
Upper middle
World Bank
Religion
Protestant 64%Church of Jesus Christ 20%Roman Catholic 14%other 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Nuku‘alofa (-21.1368°, -175.2011°, elevation 1 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).