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 April sets in Hai Phong, the average high-temperature shows a slight increase, moving up from an agreeable 22.1°C (71.8°F) in March to a warm 26.2°C (79.2°F). Hai Phong's nighttime temperature in April drops to an average of 21°C (69.8°F).

Humidity

With an average relative humidity of 91%, April is the most humid month in Hai Phong.

Rainfall

In Hai Phong, during April, the rain falls for 8.7 days and regularly aggregates up to 111mm (4.37") of precipitation. Throughout the year, there are 104.3 rainfall days, and 2209mm (86.97") of precipitation is accumulated.

Sea temperature

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

Sunshine

In Hai Phong, the average sunshine in April is 3h.

UV index

March through August, with an average maximum UV index of 12, are months with the highest UV index in Hai Phong. A UV Index of 11, and more, symbolizes an extreme health hazard from exposure to the Sun's UV rays for average individuals.
Note: In April, a regular UV index of 12 translates into these guidelines:
Practice every essential safety step. People with fair skin could receive burns in fewer than 5 minutes. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Combat sunburn and harmful sun radiation by consistently applying sunscreen with at least 30 SPF. Beware! Reflections from sand and water can intensify the Sun's UV radiation.