Halong Bay in September: Weather & climate information
What's the weather like in Halong Bay in September? See the historical monthly averages for temperature, rainfall and humidity.
September Averages
In September, Halong Bay experiences warm temperatures ranging from 24.8°C to 30.4°C. It’s quite humid at 78.5%, with around 16 rainy days and about 10.8 hours of sunshine daily.| Min Temperature | 24.8°C | Precipitation | 166.6mm |
| Max Temperature | 30.4°C | Rainy Days | 16.2 days |
| Humidity | 78.5% | Sunshine Hours | 10.8 hours |
Historical weather
September weather averages for Halong Bay in the last 14 years ( 2010 to 2024).
September
2011
- 2010
- 2011
- 2012
- 2013
- 2014
- 2015
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|
1 27.0°33.0° | 2 27.0°32.0° | 3 27.0°31.0° | 4 27.0°31.0° | |||
5 26.0°30.0° | 6 26.0°30.0° | 7 26.0°31.0° | 8 26.0°30.0° | 9 26.0°31.0° | 10 26.0°30.0° | 11 26.0°29.0° |
12 25.0°28.0° | 13 24.0°29.0° | 14 25.0°29.0° | 15 25.0°30.0° | 16 25.0°31.0° | 17 25.0°30.0° | 18 26.0°31.0° |
19 26.0°31.0° | 20 25.0°29.0° | 21 23.0°29.0° | 22 22.0°29.0° | 23 22.0°29.0° | 24 22.0°28.0° | 25 22.0°29.0° |
26 23.0°28.0° | 27 22.0°30.0° | 28 24.0°31.0° | 29 24.0°28.0° | 30 21.0°22.0° |
Temperature Graph (°C)
The average Halong Bay temperature during September is around 27.5°C (81.5°F).
| Month | High | Low | Changes |
| August | 30.8°C (87.44°F) | 25.7°C (78.26°F) | -0.3°C (31.46°F) |
| September* | 30.4°C (86.72°F) | 24.8°C (76.64°F) | -0.7°C (30.74°F) |
| October | 28.0°C (82.4°F) | 21.8°C (71.24°F) | -2.7°C (27.14°F) |
Humidity Graph (%)
The average humidity in September in Halong Bay is 78.5%, which is 2.9% lower than August and 3.4% higher than October.
Rainfall Graph (mm)
Average rainfall in September in Halong Bay: 166.6mm
| August | September* | October |
| 303.2mm (-136.6mm) | 166.6mm | 77.8mm (+88.8mm) |
Rain Days Graph
Average rain days in September in Halong Bay: 16.2 days
Daylight Graph
Average daylight in September in Halong Bay: 12.3h
Frequently asked questions
How is the weather in Halong Bay in September?
September in Halong Bay is warm, with average temperatures around 27.5°C. Daily temperatures typically range from 24.8°C (76.64°F) to 30.4°C (86.72°F), perfect for exploring the stunning scenery.
Is Halong Bay humid in September?
Yes, Halong Bay is quite humid in September, with humidity levels averaging around 78.5% and seldom dropping below 57.0%.
Does it rain often in Halong Bay in September?
Yes, it does rain frequently in Halong Bay during September, averaging about 16 rainy days and around 166.6mm (6.56") of rainfall.
How many hours of daylight are there in September in Halong Bay?
In September, Halong Bay enjoys an average of 12.3 hours of daylight each day.
How long is the sun out per day in Halong Bay in September?
The average daily sunshine in Halong Bay during September is around 10.8 hours. Enjoy the warm and bright days!
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