Quy Nhon weather in brief
Quy Nhon has a warm coast climate. The long-term mean temperature runs from 23.8 °C in January to 30.6 °C in June. Rain is not spread evenly. The long-term figures put the driest months in February and March, and the heaviest rain in October and November. Vietnam's storm season runs from May to November, according to UK government travel advice.
This is an independent guide. The numbers below come from the Japan Meteorological Agency, for its Quy Nhon station (ID 48870, 4 m above sea level). Two sets are shown and kept apart: what was measured in the year 2025, and the long-term averages for 1991 to 2020. A single year can look very different from the averages, so treat both as a guide and not as a forecast.
What was measured in 2025
Observed values for the full year 2025. These are not typical values and not a forecast for 2026.
| Month 2025 | Average daily high °C | Average daily low °C | Rain mm |
|---|---|---|---|
| January | 25.2 | 20.7 | 38 |
| February | 25.9 | 21.8 | 95 |
| March | 28.2 | 23.2 | 58 |
| April | 30.4 | 24.9 | 0 |
| May | 33.1 | 27.4 | 157 |
| June | 33.8 | 28.0 | 46 |
| July | 34.6 | 28.8 | 17 |
| August | 33.9 | 27.1 | 92 |
| September | 32.8 | 26.8 | 226 |
| October | 30.9 | 26.0 | 348 |
| November | 28.0 | 24.0 | 1,105 |
| December | 27.0 | 23.3 | 224 |
The highs and lows are monthly averages of the daily extremes, not records. Two months stand out. February 2025 had 95 mm against a long-term average of 29.6 mm. November 2025 had 1,105 mm, about twice the long-term average of 532.6 mm.
Boat trips and day tours in Quy Nhon
Ky Co and Eo Gio day trips, snorkeling boats and island tours, with live prices and availability.
Long-term averages, 1991 to 2020
The same station, as averages over thirty years. Use these to compare the seasons.
| Month | Mean temperature °C | Normal rain mm |
|---|---|---|
| January | 23.8 | 104.1 |
| February | 24.5 | 29.6 |
| March | 26.1 | 26.1 |
| April | 28.1 | 52.6 |
| May | 29.6 | 78.4 |
| June | 30.6 | 54.5 |
| July | 30.3 | 59.6 |
| August | 30.3 | 102.1 |
| September | 29.0 | 228.4 |
| October | 27.2 | 491.9 |
| November | 26.1 | 532.6 |
| December | 24.4 | 189.0 |
February to July each average under 80 mm of rain, and February and March are the driest. September already averages 228 mm. Some tourism pages call May to September the low-rain stretch, but the long-term figures show September as the start of the wet months. Do not expect the same pattern as in northern or southern Vietnam. The wet season on this coast is the autumn.
Which months for which plans
A planning guide from the figures above. No season guarantees good weather.
February to April
The lowest long-term rainfall, with mean temperatures of 24.5 to 28.1 °C. This is a sensible window for the beach, the coast walks and the towers. Individual years vary: February 2025 was wetter than the average.
Beaches →May to August
Hot, with mean temperatures near 30 °C and highs above 33 °C in 2025. Rain is moderate in the averages. This is part of the storm season for Vietnam as a whole, so keep an eye on forecasts.
Ky Co →September to December
The wet months, with the heaviest rain in October and November. Plan for changed days, wet roads and rough seas. Boat trips can be moved or cancelled at short notice.
Islands →Island boats in autumn
One operator of island tours notes that departures can be postponed in rough seas, especially from October to December. Ask your operator what happens to your booking if the weather stops the boat.
Tours compared →Storms, floods and the sea
Storm Kalmaegi hit the area on the evening of 6 November 2025. A report the next day described damage to roofs, shops, hotels and coastal facilities. It was a single event, but it is a reason to ask whether the beach facility, boat landing or room you want is open.
Heavy rain returns most years. On 9 September 2026, streets in parts of the city flooded, and on 21 and 22 September landslides were reported near the Quy Hoa pass and on Route 1D. Treat dated reports like these as examples of how the wet season behaves, not as the state of the road today.
The sea needs attention in any month. A report from April 2026 describes rip currents, swimmers outside the marked buoys and beach profiles changed by the 2025 storm. Follow the flags, swim inside the marked zone and do not rely on lifeguard cover being the same on every stretch. If your trip continues south, see the weather guide for Phu Yen.
Plan the rest of your trip
Weather decides the order of your days. These pages help you set it.
Quy Nhon weather: frequently asked questions
What is the best time to visit Quy Nhon?
The long-term averages show the least rain in February and March, and moderate rain from April to August. September to December is wet, with October and November the wettest. There is no month with a weather guarantee, so keep your plans flexible.
When is the rainy season?
On this coast the heaviest rain falls from September to December. The averages for October and November are 491.9 mm and 532.6 mm, against 26.1 mm in March.
Is it hot in Quy Nhon?
Yes, from about April. The long-term mean temperature is 30.6 °C in June, and the 2025 average daily high reached 34.6 °C in July. January is the coolest month, with a mean of 23.8 °C.
When is typhoon season?
UK government travel advice gives May to November for Vietnam as a whole and says tropical storms can cause serious disruption. Follow local authority instructions if a storm is forecast.
Can boat trips be cancelled for weather?
Yes. Operators can postpone or cancel when the sea is rough, and one island tour operator names October to December as the months when this is most likely. Ask what the refund or rebooking rule is before you pay.
Where do these numbers come from?
They are monthly values from the Japan Meteorological Agency for the Quy Nhon station. The first table is the measured year 2025. The second table is the 1991 to 2020 long-term average.