West Coast has a temperate climate with warm summers and mild winters.
West Coast has an average annual temperature of 10.7°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 9.5°C, while Westport is the coldest with average January lows of 10.1°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 | 🌤️ | Avg High | Avg Temp | Avg Low | Record High | Record Low | Humid % | Rain (mm) | Wind (m/s) | Solar (kWh/m²) |
|---|---|---|---|---|---|---|---|---|---|---|
| January | 🌧️ | 17.9°C | 14.6°C | 11.4°C | 25.3°C | 1.5°C | 83% | 153 | 0.9 | 6.30 |
| February | ⛅ | 18.2°C | 14.9°C | 11.7°C | 25.1°C | 1.4°C | 83% | 121 | 0.9 | 5.50 |
| March | ⛅ | 16.7°C | 13.6°C | 10.5°C | 23.8°C | -0.3°C | 85% | 140 | 0.9 | 4.20 |
| April | 🌧️ | 14.4°C | 11.5°C | 8.7°C | 19.9°C | -1.7°C | 87% | 160 | 1.0 | 2.80 |
| May | 🌧️ | 11.9°C | 9.5°C | 7.0°C | 19.3°C | -2.9°C | 89% | 174 | 1.0 | 1.80 |
| June | 🌧️ | 9.7°C | 7.4°C | 5.1°C | 15.1°C | -5.1°C | 89% | 177 | 1.1 | 1.40 |
| July | 🌧️ | 9.0°C | 6.6°C | 4.2°C | 14.0°C | -3.4°C | 88% | 162 | 1.0 | 1.60 |
| August | 🌧️ | 9.8°C | 7.3°C | 4.7°C | 14.9°C | -4.3°C | 87% | 168 | 1.0 | 2.30 |
| September | 🌧️ | 11.3°C | 8.5°C | 5.7°C | 17.6°C | -3.2°C | 86% | 169 | 1.0 | 3.40 |
| October | 🌧️ | 12.7°C | 9.8°C | 6.9°C | 19.4°C | -2.4°C | 85% | 189 | 1.0 | 4.60 |
| November | 🌧️ | 14.5°C | 11.4°C | 8.3°C | 22.1°C | -0.4°C | 83% | 155 | 1.0 | 5.70 |
| December | 🌧️ | 16.3°C | 13.2°C | 10.2°C | 23.5°C | 1.7°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
💧 Humidity peaks at 89% in June · annual avg 86%
Monthly averages · 1981–2025
Across 45 years, West Coast's temperature shows a slight warming trend over the past decade. 2022 was the warmest year overall and 1992 the coolest.
The warmest year on record was 2022 (avg: 11.8°C), while the coldest year was 1992 (avg: 9.6°C).
Averaged across all 3 cities in West Coast · Last 30 years · °C
Averaged across all 3 cities in West Coast · Last 30 years · mm/year
🔥 hottest · ❄️ coldest · 🌧️ wettest
ℹ️ Values are averages across all 3 cities in West Coast for each year.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall (mm) | Avg Humidity | Avg Wind |
|---|---|---|---|---|---|---|---|---|
2025 | 14.1°C | 11.4°C | 8.6°C | 22.7°C | -2.7°C | 2156 | 86% | 1.0 m/s |
2024 | 13.6°C | 10.9°C | 8.2°C | 23.5°C | -2.0°C | 2109 | 87% | 0.9 m/s |
2023 | 14.4°C | 11.6°C | 8.8°C | 23.1°C | -2.1°C | 2192 | 86% | 1.0 m/s |
2022 🔥 | 14.6°C | 11.8°C | 9.0°C | 24.6°C | -2.4°C | 2362 | 86% | 0.9 m/s |
2021 | 13.9°C | 11.3°C | 8.6°C | 21.1°C | -2.5°C | 2200 | 87% | 1.0 m/s |
2020 | 13.8°C | 11.0°C | 8.2°C | 22.5°C | -2.1°C | 1934 | 87% | 1.0 m/s |
2019 | 14.0°C | 11.2°C | 8.4°C | 23.9°C | -1.7°C | 2230 | 86% | 1.0 m/s |
2018 | 14.2°C | 11.5°C | 8.7°C | 25.3°C | -1.8°C | 2037 | 87% | 0.9 m/s |
2017 | 13.9°C | 11.1°C | 8.2°C | 22.9°C | -3.4°C | 1989 | 87% | 0.9 m/s |
2016 | 14.0°C | 11.2°C | 8.4°C | 24.1°C | -4.3°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.
