| Average climate data for Hai Phong, Vietnam | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Average maximum temperature (°C) | 20 | 20 | 22 | 26 | 31 | 32 | 32 | 32 | 31 | 29 | 26 | 22 | 32 |
| Average minimum temperature (°C) | 14 | 15 | 18 | 21 | 24 | 26 | 26 | 25 | 24 | 22 | 19 | 15 | 14 |
| Average precipitation (mm) | 37 | 38 | 79 | 112 | 244 | 299 | 308 | 475 | 320 | 193 | 53 | 47 | 2,205 |
| Average rainfall days (days) | 5 | 8 | 10 | 9 | 10 | 12 | 11 | 15 | 11 | 8 | 3 | 3 | 104 |
| Average relative humidity (%) | 78 | 85 | 90 | 92 | 86 | 86 | 87 | 89 | 86 | 80 | 83 | 78 | 85 |
| Average water temperature (°C) | 20 | 20 | 20 | 23 | 27 | 29 | 31 | 30 | 29 | 27 | 25 | 22 | 25 |
| Average daily daylight hours (h) | 11 | 11 | 12 | 12 | 13 | 13 | 13 | 12 | 12 | 11 | 11 | 10 | 12 |
| Average daily sunshine hours (h) | 2 | 1 | 1 | 3 | 6 | 6 | 7 | 5 | 6 | 5 | 5 | 4 | 4 |
| Average UV index | 8 | 10 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 10 | 8 | 7 | 10 |
The warmest month, with the highest average maximum temperature, is June (32 °C). The month with the lowest average maximum temperature is February (19.7 °C). Overall, the average maximum temperature over the whole year is 26.7 °C.
The month with the highest average minimum temperature is July (25.9 °C). The coldest month, with the lowest average minimum temperature, is January (14.2 °C). Overall, the average minimum temperature over the whole year is 20.7 °C.
The month with the highest average water temperature is July (30.6 °C). The month with the lowest average water temperature is January (19.6 °C). Overall, the average water temperature over the whole year is 25.2 °C.
The wettest month, with the highest amount of precipitation, is August (475.1 mm). The driest month, with the least amount of precipitation, is January (37.5 mm). Over the whole year there are 2,205.3 mm of rainfall on average.
The month with the most days of rain is August (15.4 days). The month with the fewest days of rain is December (2.7 days). Over the whole year there are 104.3 days of rain on average.
The month with the highest average relative humidity is April (91.8 %). The month with the lowest average relative humidity is January (77.6 %). The overall average relative humidity over the whole year is 85 %.
The months with the longest days, so the most daylight, are June and July (Average daylight: 13 h). The month with the shortest days, so the least daylight, is December (Average daylight: 10.1 h). Over the whole year there are 11.8 h of daylight per day on average.
The month with the most sunshine per day is July (Average sunshine: 6.9 h). The month with the least sunshine per day is March (Average sunshine: 0.9 h). Over the whole year there are 4.3 h of sunlight per day on average.
The months with the highest average UV index are March, April, May, June, July and August (UV index: 12). The month with the lowest average UV index is December (UV index: 7). Over the whole year the average UV index is 10.5.
