Weather in Nelson in March

Prime time. March is about as good as Nelson gets. Highs average 23.1 °C, lows 12.6 °C, and rain falls on 10 days — nothing in the month is working against you.

March ranks 3 of 12 in Nelson. Only February scores clearly higher, and the difference is small enough to be settled by price rather than weather.

Rain on 10 days, 2 of them heavy. Enough to need a plan B, not enough to need a plan around it. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.

What the averages hide

Averages flatten a month, and this one hides a few things: it never really gets hot: not one day in an average March reaches 30 °C. Across the twenty years measured, the hottest March day reached 31.5 °C and the coldest night fell to 6.3 °C, and the wettest single day dropped 52 mm — roughly 76% of the month's rain in one day.

March is statistically steady but not small: the year-to-year variation is modest in relative terms, yet the wettest March on record still delivered 125 mm against 32 mm in the driest. In a month this wet, even a tame spread is a lot of rain in absolute terms — the 68 mm average is a reasonable planning figure, not a promise.

Wind is light at 4.5 km/h, so the temperature on the page is close to the temperature on your skin, and humidity is unremarkable at 74%.

How March sits in the year

The month is on the way down: 2.3 °C cooler than February, with April dropping another 4 °C. The first week and the last are not the same trip.

Daylight in March

12.4 hours of daylight, losing 1.4 hours across the month. That is between Nelson's extremes of 15.1 and 9.2 hours, so days are long enough not to constrain the plan.

An inland climate

Despite being inland, the year stays fairly even: 20.1 °C between the year's warmest afternoons and coldest nights.

How busy it gets

Peak season. Expect the highest prices of the year and to be booking well ahead.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

March in Nelson versus nearby

If Nelson is one option among several, the nearby comparison is worth making. Wellington is close enough to be a coin toss — 4.8 °C cooler, 2 days less rain. Greymouth is the weaker option in March — 4.6 °C cooler, 4 days more rain.

So: March is effectively as good as it gets here — 3 points behind February, which is inside the margin where the weather stops being the deciding factor and price starts being it.

Every month in Nelson

See all twelve months in Nelson, or where else to go in March.