Weather in Rach Gia

Get the most up-to-date weather information in Rach Gia. Below are the current weather conditions, forecasts, and useful charts to help you plan your day.

The city of Rach Gia in Vietnam is distinguished by a distinct tropical climate, characterized by high temperatures throughout the year. Temperatures are consistently high year-round, with monthly averages ranging from 26.6°C to 29.7°C. This means travellers can expect warm, and at times hot, weather regardless of the time of their visit.

Two main seasons are clearly traceable in Rach Gia: the dry season and the rainy season. The dry season usually lasts from January to March, when rainfall is minimal (only about 1 mm per month), and the number of rainy days is low, especially in February. Starting from April, the amount of precipitation and rainy days gradually increases, reaching its peak between May and October. During these months, the highest amount of precipitation falls (up to 11 mm), and rains can occur almost daily, especially in July, August, and September. November and December are transitional months when rain intensity decreases, preparing the city for a new dry period.

In the city of Rach Gia, located in Vietnam, a typical tropical monsoon climate prevails, characterized by high temperatures throughout the year. The annual range of average temperatures here is relatively small: from 26.6°C in the "coolest" months, January and December, to 29.7°C in the hottest month – April. Daytime highs in April can reach 33.5°C, while minimum night-time temperatures in January drop to an average of 23.0°C, which still ensures very warm weather.

The summer period in Rach Gia, which can be tentatively assigned to the months from March to October, brings real tropical heat, often accompanied by high humidity, especially from May to October when the number of rainy days rises sharply. The highest temperatures are observed in March and April, when average daytime highs confidently stay above 33°C. Even at the height of the rainy season, from June to September, average temperatures remain high, hovering around 28°C, creating a sensation of steamy and sultry weather.

The so-called "winter" in Rach Gia, covering the months from November to February, represents a drier and comparatively cooler season, although the weather remains very warm and comfortable for travel. Monthly average temperatures during this period range from 26.6°C to 27.5°C. A characteristic feature of this time of year is more noticeable diurnal temperature fluctuations: during the day the air warms up to 30-31°C, and at night it cools down to 23-24°C. These temperature changes, especially in January-March, when the difference between the daily maximum and nightly minimum can reach 7-8.5°C, are felt more strongly than in the humid summer months, when cloud cover and humidity hold back night-time cooling.

In the city of Rach Gia, a clearly defined seasonality in precipitation distribution is observed throughout the year. Two main periods can be distinguished: the wet season, which usually lasts from May to October, and the dry season, covering months from December to April, with a peak of aridity at the beginning of the year.

The wet season is characterized by a significant increase in the number of rainy days. According to the provided data, the highest amount of precipitation falls in September and October, when the monthly average reaches 11 mm. However, July stands out for rain frequency: in this month, precipitation is observed almost daily (30 wet days), with a total volume of 10 mm. A similar picture with high rain frequency (27-29 days) is observed in May, June, August, September, and October. Such a distribution pattern — a large number of rainy days with comparatively low total precipitation volumes — suggests that frequent, but likely predominantly light or moderate rains, possibly in the form of drizzle, are characteristic of the wet season in Rach Gia.

The dry season manifests most clearly from January to March. During these months, a minimal amount of precipitation falls — just 1 mm per month. February is the driest month of the year, counting only 3 rainy days. December (2 mm of precipitation, 12 rainy days) and April (3 mm of precipitation, 16 rainy days) can be considered transitional months, when a gradual decrease or, accordingly, increase in the amount of precipitation and rainy days occurs. Given Vietnam's climatic conditions and high average annual temperatures in Rach Gia, all precipitation falls exclusively as rain; snow is not characteristic of this region.

When planning a trip to Rach Gia, it is important to consider its tropical climate with high temperatures throughout the year. The average temperature ranges from 26.6°C to 29.7°C, so the basis of your wardrobe should be light, breathable clothing made from natural fabrics such as cotton or linen. Do not forget headwear, sunglasses, and high SPF sunscreen for protection against the sun, which is active even on cloudy days. Comfortable walking shoes, for example, sandals or light trainers, will also be indispensable for exploring the city.

In Rach Gia, the rainy season is clearly expressed, lasting approximately from May to October, reaching a peak in precipitation and the number of rainy days in July, September, and October (up to 30 rainy days per month). During this period, be sure to take a compact umbrella or a light raincoat with you. Quick-drying clothing will also be very handy. In the drier months, from January to March, there is significantly less precipitation, but a light jacket or wrap may be useful for evening walks or visiting air-conditioned places. Regardless of the season, insect repellent will be a useful addition to your luggage, especially in the evening.