Climate averages 1991–2020
Port-Vila weather
in September.
A warm, moderately wet month: the 10th warmest and the 3rd driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
September is a warm month in Port-Vila: daytime highs average 24.8°C and nights cool to about 23.3°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 73 mm of rain on roughly 8 days, which makes September a moderately wet month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 59 min on an average September day.
The nearest other city in this atlas is Nouméa (541 km away). In September its highs average 23.0°C, 1.7°C cooler than Port-Vila, with 48 mm of rain.
From September to October, average highs rise by 0.7°C to 25.4°C, and monthly rainfall rises from 73 mm to 85 mm.
The annual picture
September in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Port-Vila climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.8°C25.9°C | 25.9°C | 186 | 18.0 | 13.113 h |
| February | 28.1°C26.2°C | 26.2°C | 198 | 19.3 | 12.713 h |
| March | 28.0°C26.2°C | 26.2°C | 237 | 21.8 | 12.212 h |
| April | 27.3°C25.6°C | 25.6°C | 209 | 19.0 | 11.712 h |
| May | 26.2°C24.8°C | 24.8°C | 146 | 12.6 | 11.311 h |
| June | 25.3°C24.1°C | 24.1°C | 104 | 10.2 | 11.111 h |
| July | 24.4°C23.2°C | 23.2°C | 66 | 7.8 | 11.211 h |
| August | 24.3°C23.0°C | 23.0°C | 57 | 7.6 | 11.512 h |
| September, selected | 24.8°C23.3°C | 23.3°C | 73 | 8.0 | 12.012 h |
| October | 25.4°C23.9°C | 23.9°C | 85 | 8.6 | 12.512 h |
| November | 26.4°C24.7°C | 24.7°C | 79 | 10.4 | 12.913 h |
| December | 27.3°C25.5°C | 25.5°C | 132 | 14.6 | 13.213 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
September in nearby cities
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Port-Vila) is explained once on the Port-Vila year overview and on the Sources, method and limits page.