March weather forecastHaikou, China
March
Weather in March
March delivers a significant rise in temperatures and a renewal of libations from the sky. Relative humidity shows no considerable changes yet still escalates in parallel with the temperatures. Haikou weather grows increasingly tropical during March, distinguishing itself from cooler and less wet February. As temperatures climb and rainfall gathers, March becomes an anticipation of the even hotter and wetter summer just around the corner.Temperature
Haikou observes a slight uplift in the average high-temperature with the onset of March, adjusting from February's pleasant 22.3°C (72.1°F) to a moderately hot 26°C (78.8°F). Haikou, in March, witnesses an average low-temperature of 19.1°C (66.4°F).Humidity
In March, the average relative humidity is 86%.Rainfall
In March, in Haikou, China, the rain falls for 10.1 days. Throughout March, 51mm (2.01") of precipitation is accumulated. In Haikou, during the entire year, the rain falls for 145 days and collects up to 1652mm (65.04") of precipitation.Sea temperature
In Haikou, the average seawater temperature in March is 20.2°C (68.4°F).Note: The majority of individuals do not enjoy swimming in water that is 20.2°C (68.4°F). Breathing control becomes more challenging as the water temperature dips from 21°C (69.8°F) to 15°C (59°F).
Daylight
In Haikou, the average length of the day in March is 12h and 2min.On the first day of March, sunrise is at 06:58 and sunset at 18:44. On the last day of the month, sunrise is at 06:33 and sunset at 18:53 CST.
Sunshine
The average sunshine in March is 4.4h.UV index
The months with the highest UV index are March through September, with an average maximum UV index of 12. A UV Index value of 11, and more, symbolizes an excessive health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 12 during March translates into these guidelines:
Put into effect every precaution of importance, unprotected skin and eyes may get burns swiftly. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Haikou, China
- Average high temperature in March: 26°C
The warmest month (with the highest average high temperature) is July (33.1°C).
The month with the lowest average high temperature is January (21°C).
- Average low temperature in March: 19.1°C
The months with the highest average low temperature are June and July (25.5°C).
The coldest month (with the lowest average low temperature) is January (15.4°C).
Average humidity in March
Haikou, China
- Average humidity in March: 86%
The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is November (80%).
Average rainfall in March
Haikou, China
- Average rainfall in March: 50.6mm
The wettest month (with the highest rainfall) is September (244.1mm).
The driest month (with the least rainfall) is January (19.5mm).
Average rainfall days in March
Haikou, China
- Average rainfall days in March: 10.1 days
The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is December (7.3 days).
Average sea temperature in March
Haikou, China
- Average sea temperature in March: 20.2°C
The best month for swimming (with the highest average sea temperature) is July (29.5°C).
The coldest month (with the lowest average sea temperature) is February (19.6°C).
Average daylight in March /
Average sunshine in March
Haikou, China
- Average daylight in March: 12h and 0min
The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in March: 4h and 24min
The month with the most sunshine is July (Average sunshine: 8h and 6min).
The months with the least sunshine are January and February (Average sunshine: 3h and 30min).
Average UV index in March
Haikou, China
- Average UV index in March: 12
The months with the highest UV index are March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 7).








