West Coast has a temperate climate with warm summers and mild winters.
West Coast has an average annual temperature of 10.3°C across all 3 cities, with approximately 1956 mm of annual precipitation and average humidity of 86%. Temperatures peak in February and drop to their lowest in July, while rainfall is highest during winter months.
The warmest city is Hokitika with average July highs of 12.3°C, while Westport is the coldest with average January lows of 5.5°C. Humidity remains high throughout the year creating warm and humid conditions. These seasonal patterns offer comfortable conditions year-round, with warm summers and mild winters.
| Month | 🌤️ | High | Low | Avg | Humid % | Rain (mm) | Wind (m/s) | Solar (kWh/m²) |
|---|---|---|---|---|---|---|---|---|
| January | 🌧️ | 21.5°C | 7.4°C | 14.4°C | 83% | 153 | 0.9 | 6.30 |
| February | ⛅ | 21.7°C | 7.9°C | 14.8°C | 83% | 121 | 0.9 | 5.50 |
| March | ⛅ | 20.2°C | 5.9°C | 13.1°C | 85% | 140 | 0.9 | 4.20 |
| April | 🌧️ | 17.7°C | 4.0°C | 10.9°C | 87% | 160 | 1.0 | 2.80 |
| May | 🌧️ | 15.5°C | 2.0°C | 8.7°C | 89% | 174 | 1.0 | 1.80 |
| June | 🌧️ | 13.0°C | 0.5°C | 6.8°C | 89% | 177 | 1.1 | 1.40 |
| July | 🌧️ | 12.0°C | 0.1°C | 6.1°C | 88% | 162 | 1.0 | 1.60 |
| August | 🌧️ | 12.9°C | 0.2°C | 6.5°C | 87% | 168 | 1.0 | 2.30 |
| September | 🌧️ | 14.6°C | 1.1°C | 7.8°C | 86% | 169 | 1.0 | 3.40 |
| October | 🌧️ | 16.5°C | 2.4°C | 9.4°C | 85% | 189 | 1.0 | 4.60 |
| November | 🌧️ | 18.3°C | 4.2°C | 11.2°C | 83% | 155 | 1.0 | 5.70 |
| December | 🌧️ | 20.0°C | 6.3°C | 13.1°C | 84% | 189 | 0.9 | 6.20 |
Showing average climate conditions across 45 years (1981–2025) · averaged across all 3 cities in West Coast
🧥 Light layers are sufficient — this Mild Winter stays cool without prolonged hard freezes.
🌤️ Conditions are ideal for outdoor activities throughout the day in this Mild Summer.
☔ Heavy Rainfall expected — carry rain gear and plan outdoor activities around these months.
Region-wide monthly averages across 3 cities · 1981–2025 · °C
Temperatures rise steadily from spring, peak in February, and gradually decline through autumn into winter.
These seasonal patterns offer comfortable conditions year-round, with warm summers and mild winters.
Region-wide monthly rainfall · 1981–2025 · mm/month
Monthly averages · 1981–2025
💧 Humidity peaks at 89% in June · annual avg 86%
The warmest year on record was 2023 (avg: 11.3°C), while the coldest year was 1992 (avg: 9.0°C).
Averaged across all 3 cities in West Coast · Last 10 years · °C
Averaged across all 3 cities in West Coast · Last 10 years · mm/year
🔥 hottest · ❄️ coldest · 🌧️ wettest
ℹ️ Values are averages across all 3 cities in West Coast for each year.
| Year | Min Temp | Avg Temp | Max Temp | Rainfall (mm) | Avg Humidity | Avg Wind |
|---|---|---|---|---|---|---|
2025 | 4.7°C | 11.0°C | 17.3°C | 2156 | 86% | 1.0 m/s |
2024 | 3.9°C | 10.4°C | 16.9°C | 2109 | 87% | 0.9 m/s |
2023 | 4.6°C | 11.3°C | 17.9°C | 2192 | 86% | 1.0 m/s |
2022 🔥 | 4.5°C | 11.3°C | 18.1°C | 2362 | 86% | 0.9 m/s |
2021 | 3.9°C | 10.5°C | 17.2°C | 2200 | 87% | 1.0 m/s |
2020 | 3.8°C | 10.3°C | 16.8°C | 1934 | 87% | 1.0 m/s |
2019 | 4.3°C | 10.9°C | 17.4°C | 2230 | 86% | 1.0 m/s |
2018 | 3.9°C | 10.9°C | 17.8°C | 2037 | 87% | 0.9 m/s |
2017 | 4.1°C | 10.6°C | 17.1°C | 1989 | 87% | 0.9 m/s |
2016 | 4.1°C | 10.7°C | 17.3°C | 2297 | 87% | 1.0 m/s |
Showing 1 to 10 of 45 years
All weather data is sourced from NASA POWER (Prediction of Worldwide Energy Resources), a NASA project providing solar and meteorological data for renewable energy, building efficiency, and agricultural research.
