expatwhy.

Vung Tau weather by month

Vung Tau runs from about 26°C in December to 30°C in May, with July the wettest month at 306 mm.

warmest month

May

30°C

coolest month

December

26°C

wettest month

July

306 mm

worst air month

June

19 µg/m³

The whole year, month by month.

Monthly climate normals for Vung Tau
MonthAvg tempRainSunPM2.5
January27°C0 mm347 h15
February27°C0 mm337 h12
March28°C1 mm367 h12
April30°C4 mm359 h13
May30°C127 mm348 h15
June29°C147 mm299 h19
July28°C306 mm269 h18
August28°C145 mm350 h15
September27°C249 mm266 h13
October27°C205 mm276 h13
November28°C47 mm310 h16
December26°C86 mm238 h15

About 3,766 hours of sun a year. Roughly 133 rainy days a year.

These are long-run climate normals, not a forecast. A given year can sit well outside them. PM2.5 is a global model: near the coast it counts sea salt as fine particulate and reads high against ground stations, sometimes by a factor of two. Use the shape of the year, not the absolute number.

where these numbers come from

  • · Temperature, rainfall and sunshine: ECMWF ERA5 reanalysis climate normals via Open-Meteo (CC BY 4.0), fetched once and stored.
  • · PM2.5: Copernicus CAMS reanalysis, monthly means. Modelled, not station readings; near coasts CAMS counts sea salt as PM2.5 and reads high.

Last reviewed 2026-05-23. Full method, licences and the list of sources we rejected are on the methodology page.