Weather in Greymouth in April

Shoulder season. April sits in between. You will get good days and you will lose some. You should expect rain on 15 days of the month, which is more days wet than dry.

April ranks 5 of 12 in Greymouth: past the worst of the year but short of February, which is the month to book if the dates are open.

This is wet-season rain: 15 wet days and 6 genuinely heavy ones, which in this climate means concentrated downpours rather than all-day grey. The pattern is usually a clear morning and a loud afternoon, so front-load the day and stop fighting the 3pm hour. Pack for 16.2 °C days and 11.2 °C nights; the spread matters more here than any single number.

What the averages hide

Averages flatten a month, and this one hides a few things: the day barely swings — 5 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest April day reached 20.6 °C and the coldest night fell to 4.2 °C, and the wettest single day dropped 55 mm — roughly 35% of the month's rain in one day.

April is moderately variable: 52 mm in the driest year against 327 mm in the wettest, around an average of 159 mm. Roughly two Aprils in three land near that average, and the third does something else entirely.

Wind is light at 4.4 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 86%, high enough to notice on the warm days without dominating them.

How April sits in the year

The month is on the way down: 2.3 °C cooler than March, with May dropping another 2.2 °C. The first week and the last are not the same trip.

Daylight in April

11 hours of daylight, losing 1.3 hours across the month. That is between Greymouth's extremes of 15.3 and 9.1 hours, so days are long enough not to constrain the plan.

Sea temperature

The sea sits at about 17.2 °C in April — cold — a quick dip rather than a swim, and a wetsuit if you are in for longer. The sea peaks at 18.5 °C in February and bottoms out at 13.3 °C — water lags the air by a month or two, which is why the best swimming often comes after the best weather.

How busy it gets

Shoulder. The value months — prices ease off and you get the place closer to itself.

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

April in Greymouth versus nearby

If Greymouth is one option among several, the nearby comparison is worth making. Waikowhai is close enough to be a coin toss — within a degree on temperature, the same number of rain days. Christchurch is a better bet in April — within a degree on temperature, 3 days less rain.

So: April works, with February the better month by 17 points if the dates can move. If they cannot, nothing here should stop you booking.

Every month in Greymouth

See all twelve months in Greymouth, or where else to go in April.