Climate Overview
The climate in Đồng Hới is hot. The average annual temperature is 26°C and approximately 2380mm of precipitation falls per year. Đồng Hới receives a notable amount of rainfall throughout the year, including during its driest month. Đồng Hới is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: June, August, July. The coldest months are January, February, December, when temperatures can drop to 20°C.
Temperature
Đồng Hới sees moderate temperature variation throughout the year, ranging from 20°C to 32°C. The warmest month is June, when average highs reach 32°C and the mean temperature sits around 30°C. January is the coolest month, with minimum temperatures around 20°C and an average of 21°C. Daily temperature variation is modest, with an average difference of 2°C between highs and lows. The sharpest temperature change occurs between November and December, with a 3°C shift in average temperatures.
Precipitation
Đồng Hới is a very wet location, receiving approximately 2380mm of precipitation annually, which averages out to around 198mm per month. The wettest month is October, averaging 648mm of rainfall. September and November also tend to see above-average precipitation. The driest month is June, with just 35mm. That's 614mm less than October, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.
Wind
Đồng Hới is moderately windy, with an average annual wind speed of 24km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 29km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in May, with average winds dropping to 20km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 9km/h gap between the calmest and windiest months.
Seasons
89 days until Summer
It is currently spring in Đồng Hới, which began on March 20, 2026. Đồng Hới is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in June at around 32°C, while the coldest stretch bottoms out in January near 20°C. Summer is next, beginning on June 21, 2026 — 89 days from now.
Spring
Temperatures range from 22 to 30°C. Precipitation is moderate at around 190mm for the season, averaging 63mm per month. Winds are moderate at around 21km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 28 to 32°C. Precipitation is moderate at around 296mm for the season, averaging 99mm per month. Winds are moderate at around 24km/h. Light, breathable clothing is ideal — perfect conditions for outdoor activities.
Autumn
Temperatures range from 24 to 30°C. Rainfall is heavy, totalling around 1410mm across the season with a monthly average of 470mm. Winds are moderate at around 24km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from 20 to 23°C. Rainfall is heavy, totalling around 484mm across the season with a monthly average of 161mm. Winds are strong, averaging 26km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Best Time to Visit
The best time to visit Đồng Hới is during February and March, when the weather is most comfortable for travellers. During these months, average temperatures hover around 22°C with modest rainfall averaging 74mm per month. By contrast, June can be uncomfortably hot with highs reaching 32°C, while January is the coldest period with lows dropping to 20°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.
Monthly Climate Data
The table below shows monthly climate averages for Đồng Hới based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.
