Rach Gia Temperature by Month
The average annual maximum temperature in Rach Gia, Kien Giang , Vietnam is 32°C (90°F), with little variation between seasons. This page covers monthly averages, day-night differences, and how Rach Gia compares to cities worldwide.
Rach Gia Monthly Temperatures
With minimal seasonal shifts, Rach Gia experiences a constant climate year-round. Maximum daytime temperatures range from a very warm 34°C (93°F) in April to a very warm 31°C (88°F) in August. At night, temperatures range from 27°C (81°F) in April to 24°C (75°F) in August.
The chart below illustrates the average maximum day and minimum night temperatures in Rach Gia by month:
The coldest point of the day usually falls between 4 AM and 6 AM, with temperatures peaking around 3 PM. April, the city's warmest month, gets 246 hours of sunshine.
The chart below shows the average temperature throughout the year:
Daily Historical Temperatures
30-year average (1996-2025)
Average high and low temperatures for each day of the month based on long-term records.
Average temperatures in July
Historical Rach Gia Temperatures: 1976-2026
Browse day-by-day temperature records for Rach Gia spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Rach Gia vs Vietnam
The map below shows the annual temperature across Vietnam. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
cold
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Rach Gia vs World: Temperature Compared
Rach Gia's average annual maximum temperature is 32°C (90°F). To put that in context, here's how it compares to a few well-known destinations:
Lisbon, Portugal averages 21°C (70°F) annually — warm summers, mild winters, and rain mainly in the cooler months.
Reykjavík, Iceland averages 9°C (48°F) a year — mild summers by Icelandic standards, but cold winters and frequent wind.
Chicago, USA averages 15°C (59°F) annually — known for extreme seasonal swings, from bitterly cold winters to warm summers.
Melbourne, Australia averages 20°C (68°F) annually — known for unpredictable weather, with four seasons sometimes happening in one day.
What Does the Temperature Feel Like in Rach Gia?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In Rach Gia, August is the coolest month, with average highs of 31°C (88°F) and humidity around 86% — considered very high. In April, the warmest month, temperatures average 34°C (93°F) with 78% humidity — conditions that feel high. For a full picture, see our humidity page.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Seasonal temperature shifts influence more than just how warm it feels — they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.
Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Rach Gia this rarely lasts long on the ground.
For more on Rach Gia's weather — including monthly rainfall, sunshine hours, and humidity — visit our Rach Gia climate page.
