Whanganui — Water Temperature in March

Water Temperature Range

15°C

minimum

18°C

average

21°C

maximum

Water Temperature Chart for March

The chart shows the average daily water temperature for each day of the month based on historical data.

Table of Water Temperatures by Day of the Month for Previous Years

	2026	2025	2024	2023
MAR 1	18°C	20°C	19°C	19°C
MAR 2	18°C	20°C	19°C	19°C
MAR 3	19°C	21°C	18°C	19°C
MAR 4	19°C	20°C	19°C	19°C
MAR 5	19°C	20°C	20°C	19°C
MAR 6	18°C	20°C	19°C	18°C
MAR 7	17°C	20°C	19°C	19°C
MAR 8	17°C	20°C	19°C	19°C
MAR 9	16°C	20°C	19°C	19°C
MAR 10	16°C	19°C	19°C	19°C
MAR 11	17°C	20°C	18°C	18°C
MAR 12	17°C	19°C	19°C	18°C
MAR 13	17°C	19°C	19°C	18°C
MAR 14	17°C	19°C	19°C	18°C
MAR 15	18°C	19°C	19°C	18°C
MAR 16	18°C	18°C	18°C	19°C
MAR 17	18°C	18°C	19°C	18°C
MAR 18	18°C	19°C	19°C	18°C
MAR 19	18°C	19°C	18°C	17°C
MAR 20	18°C	19°C	19°C	18°C
MAR 21	18°C	18°C	18°C	17°C
MAR 22	18°C	18°C	18°C	17°C
MAR 23	18°C	17°C	18°C	17°C
MAR 24	18°C	17°C	18°C	17°C
MAR 25	18°C	17°C	18°C	18°C
MAR 26	18°C	17°C	18°C	18°C
MAR 27	18°C	17°C	19°C	18°C
MAR 28	18°C	18°C	18°C	17°C
MAR 29	18°C	18°C	18°C	18°C
MAR 30	-	18°C	18°C	17°C
MAR 31	-	18°C	17°C	18°C

Climate and Swimming Opportunities in Whanganui in March

Average Day Air Temperature

22°C

Average Night Air Temperature

12°C

Precipitation Amount per Month

114 mm

Number of Rainy Days

Daylight per Day

12 hrs

Sunshine per Day

6 hrs

Average Wind Speed

18 km/h

Average Humidity

79%

At such water and air temperatures, swimming feels cool and invigorating. It’s comfortable for a quick dip, and you’ll feel fine as long as you warm up soon after.