Click on a day for an hourly weather forecast
The temperatures in New Plymouth in May are usually low and can range between 11°C and 16°C.
You can expect about 3 to 8 days of rain in New Plymouth during the month of May. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in New Plymouth in May 2025.
If you’re planning to visit New Plymouth in the near future, we highly recommend that you review the 14 day weather forecast for New Plymouth before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 21° / 15° | 4 | 27 | 0 | 102 mm | Good | New Plymouth in January |
| February | 21° / 15° | 4 | 24 | 0 | 115 mm | Good | New Plymouth in February |
| March | 20° / 14° | 5 | 26 | 0 | 123 mm | Good | New Plymouth in March |
| April | 18° / 13° | 6 | 24 | 0 | 158 mm | Good | New Plymouth in April |
| May | 16° / 11° | 7 | 24 | 0 | 213 mm | Ok | New Plymouth in May |
| June | 14° / 10° | 9 | 21 | 0 | 219 mm | Ok | New Plymouth in June |
| July | 13° / 9° | 8 | 23 | 0 | 207 mm | Bad | New Plymouth in July |
| August | 13° / 9° | 10 | 21 | 0 | 213 mm | Bad | New Plymouth in August |
| September | 14° / 9° | 10 | 20 | 0 | 220 mm | Ok | New Plymouth in September |
| October | 15° / 10° | 8 | 23 | 0 | 165 mm | Ok | New Plymouth in October |
| November | 17° / 12° | 7 | 23 | 0 | 138 mm | Ok | New Plymouth in November |
| December | 19° / 14° | 8 | 23 | 0 | 151 mm | Ok | New Plymouth in December |