April weather forecast
Hai Phong, Vietnam

Heat is the defining characteristic of April in Hai Phong. Temperatures start to soar, rainfall increases, and the sun shines brighter than in the preceding months. The rising sea temperature corresponds well with the overall warmth, presenting an inviting environment for beach visits. April sees the highest accumulated rainfall between 37mm (1.46") in January and 111mm (4.37") in April. The increase in day length also signals more sunlight hours for outdoor activities.

Temperature

As March gives way to April, the average high-temperature displays a slight ascent, adjusting from a pleasant 22.1°C (71.8°F) to a warm 26.2°C (79.2°F). Hai Phong's temperature tends to fall to an average low of 21°C (69.8°F) during the nights of April.

Humidity

April is the most humid month, with an average relative humidity of 91%.

Rainfall

In Hai Phong, in April, during 8.7 rainfall days, 111mm (4.37") of precipitation is typically accumulated. Throughout the year, there are 104.3 rainfall days, and 2209mm (86.97") of precipitation is accumulated.

Sea temperature

In April, the average sea temperature is 22.5°C (72.5°F).
Note: Factor in your tolerance to cold, the sunshine, the wind, and the air's warmth, and a swim in 22.5°C (72.5°F) might be tempting. It is interesting to note that Olympians compete in 25°C (77°F) to 28°C (82.4°F) water temperatures.

Daylight

In Hai Phong, the average length of the day in April is 12h and 38min.
On the first day of the month, sunrise is at 05:46 and sunset at 18:07. On the last day of April, sunrise is at 05:23 and sunset at 18:17 +07.

Sunshine

In April, the average sunshine is 3h.

UV index

March through August, with an average maximum UV index of 12, are months with the highest UV index. A UV Index value of 11, and more, symbolizes an excessive health risk from unsafe exposure to UV radiation for the average person.
Note: The UV index of 12 during April translates into the following guidance:
Practice every essential safety step. People with fair skin could receive burns in fewer than 5 minutes. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Prolonged stay under the direct sun should be avoided as much as possible, especially if a person burns easily. Sunscreen with a minimum 30 sun protection factor should always be used. Stay alert! Reflective properties of sand and water amplify the Sun's UV radiation.