Best time to visit New Plymouth
New Zealand · 20-year averages
January is the best month in New Plymouth, scoring 81 out of 100, with July the weakest at 44. The 37-point spread means timing is worth planning around without being decisive. The good window runs January to April — 4 months within ten points of the best.
February is the warmest month at 21.7 °C and July the coolest at 12.6 °C — a 9.1 °C spread across the year. It never reaches 30 °C in an average year, which takes heat off the list of reasons to avoid any particular month.
There is a real wet season here. June, July, August and October carry the rain — up to 17 wet days in a month — while January to March drop as low as 10. That 7-day gap is the biggest single difference between a good month and a bad one in New Plymouth, and it moves further than the temperature does.
The sea peaks at just 20.2 °C, which is wetsuit territory even at its warmest — a coast to look at rather than swim in. Daylight runs from 9.4 hours in winter to 14.9 in summer, enough to notice on a sightseeing itinerary.
The three strongest months are January, February, March. The one to think twice about is July. Each month below has its own page with rainfall reliability, extremes, daylight, sea temperature and crowd levels.
New Plymouth month by month
| Month | High °C | Low °C | Rain days | Daylight h | Sea °C | Score | Verdict |
|---|---|---|---|---|---|---|---|
| January | 21.1 | 14.4 | 10 | 14.6 | 19.2 | 81 | Prime time |
| February | 21.7 | 15.1 | 10 | 13.6 | 20.2 | 81 | Prime time |
| March | 20.7 | 14 | 11 | 12.4 | 19.9 | 78 | Prime time |
| April | 18.2 | 12.3 | 12 | 11.1 | 18.9 | 71 | A good month |
| May | 15.8 | 10.8 | 15 | 10 | 17.6 | 57 | Shoulder season |
| June | 13.7 | 9 | 16 | 9.4 | 16.1 | 47 | A hard month |
| July | 12.6 | 7.8 | 17 | 9.7 | 14.9 | 44 | A hard month |
| August | 13.2 | 8 | 17 | 10.6 | 14.3 | 45 | A hard month |
| September | 14.4 | 9 | 15 | 11.8 | 14.2 | 54 | Shoulder season |
| October | 15.6 | 10 | 16 | 13 | 14.7 | 56 | Shoulder season |
| November | 17.3 | 11.2 | 12 | 14.2 | 15.9 | 69 | A good month |
| December | 19.4 | 13.3 | 14 | 14.9 | 17.7 | 70 | A good month |
Planning the rest of the trip
- Where to eat & stay in New Plymouth every café, restaurant and hotel
- Flight time to New Plymouth how long you are actually in the air
- New Plymouth time zone and the difference from home
- Days until your trip count down to the departure date
- Gyms & clubs in New Plymouth keep training while you are there