Port Vila weather in September

In September, Port Vila sees average daytime highs of 24°C and overnight lows near 23°C, with 73 mm of rain across 8 wet days and about 11.9 hours of daylight. It is the 10th-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 24°C through the month. The sky is clear or mostly clear about 34% of the time in September, and the air most often feels muggy.

Daylight stretches from about 11 h 36 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Port Vila's 2nd-clearest and 5th-windiest month. For the whole year in context, see Port Vila's year-round climate.

Daytime high
24°
10th warmest
Overnight low
23°
3rd coldest
Rainfall
73 mm
8 wet days
Daylight
11 h 54 min
5:44 AM – 5:38 PM
Cloud cover
55%
2nd clearest
Wind
27 km/h
5th windiest
Solar energy
5.27 kWh/m²
Travel score
7.3
out of 10

Port Vila is capital and largest city of Vanuatu.

Density
1,521/km²
people per km²

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 24°C through the month.

A typical September day in Port Vila reaches about 24°C in the afternoon and slips back to 23°C overnight — a 1°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 26°C. Set against its neighbours, September runs on par with August and on par with October.

20°23°25°28°30°151015202530
Avg high (°C)Avg low (°C)
12423
22423
32423
42423
52423
62423
72423
82423
92423
102423
112423
122423
132423
142423
152423
162423
172423
182423
192423
202423
212423
222423
232423
242423
252423
262423
272424
282524
292524
302524

Port Vila weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 26°18617.912.95.3
Feb28° / 26°19219.112.64.8
Mar28° / 26°23721.812.14.7
Apr27° / 26°2091911.65.1
May26° / 25°14612.611.26.2
Jun25° / 24°10410.2116.7
Jul24° / 23°667.8117.3
Aug24° / 23°577.611.47.4
Sep24° / 23°73811.97.3
Oct25° / 24°858.612.47.2
Nov26° / 25°7910.412.86.7
Dec27° / 25°13214.6136.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 23% of September, with mostly cloudy or overcast conditions the remaining 43%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15743
25743
35743
45743
55743
65842
75842
85842
95842
105842
115743
125743
135743
145743
155545
165545
175545
185545
195545
205545
215644
225743
235743
245743
255743
265743
275842
285941
295941
305941

Chance of precipitation in September

Any precipitation

Port Vila gets around 73 mm of rain over 8 wet days in September. 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 31% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
123
223
324
425
526
627
728
829
930
1030
1130
1231
1331
1431
1531
1630
1730
1829
1928
2027
2127
2226
2325
2424
2524
2624
2724
2824
2925
3025

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the muggy band about 40% of days. Sticky, muggy-or-worse air turns up on roughly 65% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1115263721
2014273721
3014273821
4014273821
5013273821
6013273922
7012273922
8011263923
9011263923
10010264024
11010254025
1209254026
1308254026
1408254027
1507254027
1607254027
1706264128
1806264028
1906264028
2006264028
2106264027
2206264027
2306264127
2406264126
2506264126
2606264126
2706274226
2806264225
2906264225
3006264226

Wind in September

Winds average 27 km/h in September.

Across September, daily wind ranges from about 27 km/h on the calmest days to 28 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202530
Wind speed (km/h)Feels
128breezy
228breezy
328breezy
427breezy
527breezy
627breezy
727breezy
827breezy
927breezy
1027breezy
1127breezy
1227breezy
1327breezy
1427breezy
1527breezy
1627breezy
1727breezy
1827breezy
1927breezy
2027breezy
2127breezy
2228breezy
2328breezy
2428breezy
2528breezy
2628breezy
2728breezy
2828breezy
2928breezy
3027breezy

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 36 min at the start of September to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 30 minutes over September. Sunrise moves from 5:57 AM to 5:32 AM, and sunset from 5:36 PM to 5:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.65:575:36
211.75:565:36
311.75:555:36
411.75:555:36
511.75:545:37
611.75:535:37
711.75:525:37
811.85:515:37
911.85:505:37
1011.85:495:37
1111.85:485:37
1211.85:485:38
1311.85:475:38
1411.95:465:38
1511.95:455:38
1611.95:445:38
1711.95:435:38
1811.95:425:38
1912.05:415:39
2012.05:405:39
2112.05:405:39
2212.05:395:39
2312.05:385:39
2412.05:375:39
2512.15:365:39
2612.15:355:40
2712.15:345:40
2812.15:345:40
2912.15:335:40
3012.15:325:40

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.27 kWh/m².

For context, solar energy here swings from a low near 3.57 kWh/m² to a high of 6.72 kWh/m² in January across the year — September's 5.27 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.9Bright
45.0Bright
55.0Bright
65.0Bright
75.0Bright
85.0Bright
95.0Bright
105.1Bright
115.1Bright
125.1Bright
135.1Bright
145.2Bright
155.2Bright
165.2Bright
175.3Bright
185.3Bright
195.3Bright
205.4Bright
215.4Bright
225.5Bright
235.5Bright
245.5Bright
255.6Bright
265.6Bright
275.7Bright
285.7Bright
295.7Bright
305.8Bright
Planning a trip in September

Hazard calendar for Port Vila

In seasonPeak

None of Port Vila's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Port Vila sits in the South Indian Ocean cyclone belt; the season peaks January–March.

Port Vila's rainy season runs December–May, when most of the year's rain falls.

Cyclone
Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Port Vila?

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

7.3
Sightseeing
2nd-best month of the year
6.3
Beach & pool
2nd-best month of the year

September is one of the better times to visit Port Vila for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Port Vila in September

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

In September, Port Vila sees daytime highs around 24°C and nights near 23°C. Worth packing: light clothes, rain gear, sun protection and a windbreaker. About 8 days see rain.

light clothesrain gearsun protectiona windbreaker

Sea temperature near Port Vila in September

The nearest coast averages about 26°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 14 km away) is warmest in February at about 29°C and coldest in August near 26°C.

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

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Tropical
Feb29Tropical
Mar29Tropical
Apr28Tropical
May27Warm
Jun27Warm
Jul26Warm
Aug26Warm
Sep26Warm
Oct26Warm
Nov27Warm
Dec28Warm

UV index in Port Vila in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Port Vila peaks around February 15 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 15UV 16Jun 20UV 7
UV index (midday)Level
Jan15Extreme
Feb16Extreme
Mar15Extreme
Apr12Extreme
May8Very high
Jun7Very high
Jul8Very high
Aug9Very high
Sep13Extreme
Oct15Extreme
Nov13Extreme
Dec13Extreme
Location & terrain

Where is Port Vila?

Port Vila sits at 17.7°S, 168.3°E, 10 m above sea level, in Vanuatu. The nearest listed city is Ouvéa, 374 km away.

Topography around Port Vila

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Port Vila.

Within 3 km, the terrain around Port Vila has only modest variations in elevation — a maximum elevation change of 132 m around an average of 25 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 646 m; within 80 km, large variations in elevation — a maximum elevation change of 631 m.

The land around Port Vila is covered by trees (42%) and water (33%) within 3 km, trees (51%) and water (40%) within 16 km, and water (90%) within 80 km.

3 km
132 m
16 km
646 m
80 km
631 m
treesgrasslandartificial surfaceswater
September weather nearby: Ouvéa 374 km · Bourail 518 km · Dumbéa 528 km · Mont-Dore 535 km · Noumea 541 km · Nadi 964 km · Lautoka 968 km · Sigatoka 973 km

Vanuatu travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type I
230 V · 50 Hz
Prices
≈ 90% of US
price level, 2025
GDP per capita
$4,039
2025
Safe drinking water
19%
of population, 2024
Homicide rate
0.3
per 100k, 2020
Road deaths
14.9
per 100k/yr, 2019
Income group
Lower middle
World Bank
Religion
Protestant 40%Roman Catholic 12%other 12%customary beliefs 3%

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 Port Vila (-17.7365°, 168.3137°, elevation 10 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). 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).