Climate Insights for Đồng Hới

The climate in Đồng Hới is warm and mild. The average annual temperature is 24°C and approximately 2330mm 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, May, July. The coldest months are February, January, December, when temperatures can drop to 17°C.

Đồng Hới sees moderate temperature variation throughout the year, ranging from 17°C to 33°C. The warmest month is June, when average highs reach 33°C and the mean temperature sits around 29°C. February is the coolest month, with minimum temperatures around 17°C and an average of 20°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows. The sharpest temperature change occurs between February and March, with a 3°C shift in average temperatures.

Đồng Hới is a very wet location, receiving approximately 2330mm of precipitation annually, which averages out to around 194mm per month. The wettest month is October, averaging 590mm of rainfall. September and November also tend to see above-average precipitation. The driest month is February, with just 59mm. That's 531mm 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.

Đồng Hới is relatively calm, with an average annual wind speed of 3km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is June, averaging 4km/h, though still comfortable for most outdoor activities. The calmest conditions occur in March, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 2km/h gap between the calmest and windiest months.

It is currently summer in Đồng Hới, which began on June 21, 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 33°C, while the coldest stretch bottoms out in February near 17°C. Autumn is next, beginning on September 23, 2026 — 90 days from now.

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 21°C with modest rainfall averaging 72mm per month. By contrast, June can be uncomfortably hot with temperatures reaching 33°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.

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.