March weather forecast
Hiroshima, Japan

Heading into March, Hiroshima undergoes a significant transition with snowfall decreasing to 10mm (0.39"). March's weather signals the beginning of the transition to spring, moving away from the harsh winter of the previous months. It's a time of growth in the city as longer hours of sunshine make a return and nature begins a colorful reawakening. The humidity level drops slightly, making March a more comfortable month than the damp February. Yet, the rainfall climbs up, indicating a wetter season on the horizon for Hiroshima.

Temperature

March's onset brings a minor rise in the average high-temperature, moving from a cool 10.6°C (51.1°F) in February to a mild 14°C (57.2°F). Throughout the month of March, Hiroshima reports a steady low-temperature average of 4.8°C (40.6°F).

Humidity

In March, the average relative humidity in Hiroshima is 64%.

Rainfall

In Hiroshima, in March, it is raining for 18 days, with typically 124mm (4.88") of accumulated precipitation. Throughout the year, in Hiroshima, Japan, there are 190 rainfall days, and 1538mm (60.55") of precipitation is accumulated.

Snowfall

Months with snowfall are January through March and December. March is the last month it regularly snows. During 2.6 snowfall days, in March, Hiroshima aggregates 10mm (0.39") of snow. Throughout the year, there are 23.1 snowfall days, and 130mm (5.12") of snow is accumulated.

Sea temperature

In Hiroshima, the average seawater temperature in March is 12.5°C (54.5°F).
Note: Caution: 12.5°C (54.5°F) temperatures below 10°C (50°F) during swimming can result in intense cold shock and quickened breathing.

Daylight

In Hiroshima, the average length of the day in March is 11h and 59min.
On the first day of the month, sunrise is at 06:38 and sunset at 18:06. On the last day of March, sunrise is at 05:58 and sunset at 18:30 JST.

Sunshine

The average sunshine in March is 5.5h.

UV index

The average daily maximum UV index in March in Hiroshima is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index, 6 in March, converts into the following recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.