Waikato has a warm temperate climate with warm summers and mild winters.
Waikato has an average annual temperature of 13.3°C across all 7 cities, with approximately 1125 mm of annual precipitation and average humidity of 82%. Temperatures peak in February and drop to their lowest in July, while rainfall is highest during summer months.
The warmest city is Thames with average July highs of 13.7°C, while Turangi is the coldest with average January lows of 10.3°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 | ☀️ | 23.2°C | 18.2°C | 13.3°C | 32.5°C | 1.7°C | 74% | 76 | 2.5 | 6.40 |
| February | ☀️ | 23.5°C | 18.6°C | 13.8°C | 34.3°C | 2.2°C | 75% | 72 | 2.3 | 5.60 |
| March | ⛅ | 21.5°C | 16.8°C | 12.2°C | 29.5°C | 0.2°C | 77% | 81 | 2.3 | 4.60 |
| April | ⛅ | 18.3°C | 14.2°C | 10.2°C | 26.3°C | -1.2°C | 82% | 97 | 2.2 | 3.30 |
| May | ⛅ | 15.0°C | 11.5°C | 8.1°C | 22.4°C | -3.2°C | 86% | 106 | 2.4 | 2.30 |
| June | ⛅ | 12.3°C | 9.3°C | 6.3°C | 19.2°C | -3.8°C | 89% | 117 | 2.4 | 1.80 |
| July | ⛅ | 11.5°C | 8.4°C | 5.4°C | 18.2°C | -3.9°C | 89% | 119 | 2.5 | 2.00 |
| August | ⛅ | 12.3°C | 8.9°C | 5.5°C | 19.5°C | -3.9°C | 87% | 103 | 2.4 | 2.70 |
| September | ⛅ | 14.1°C | 10.5°C | 6.8°C | 22.0°C | -3.8°C | 85% | 95 | 2.7 | 3.70 |
| October | ⛅ | 16.1°C | 12.2°C | 8.2°C | 24.9°C | -2.9°C | 82% | 91 | 2.8 | 4.70 |
| November | 🌤️ | 18.6°C | 14.2°C | 9.8°C | 29.4°C | -1.0°C | 78% | 77 | 2.7 | 5.80 |
| December | ⛅ | 21.0°C | 16.5°C | 12.0°C | 30.2°C | -0.3°C | 77% | 93 | 2.6 | 6.20 |
Showing average climate conditions across 45 years (1981–2025) · averaged across all 7 cities in Waikato
🧥 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.
☔ Moderate Rainfall expected — carry rain gear and plan outdoor activities around these months.
Region-wide monthly averages across 7 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 82%
Monthly averages · 1981–2025
Across 45 years, Waikato'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: 14.3°C), while the coldest year was 1992 (avg: 11.8°C).
Averaged across all 7 cities in Waikato · Last 30 years · °C
Averaged across all 7 cities in Waikato · Last 30 years · mm/year
🔥 hottest · ❄️ coldest · 🌧️ wettest
ℹ️ Values are averages across all 7 cities in Waikato for each year.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall (mm) | Avg Humidity | Avg Wind |
|---|---|---|---|---|---|---|---|---|
2025 | 18.1°C | 14.1°C | 10.0°C | 29.2°C | -2.5°C | 1448 | 82% | 2.5 m/s |
2024 | 17.7°C | 13.6°C | 9.5°C | 29.8°C | -2.3°C | 1046 | 82% | 2.3 m/s |
2023 | 17.2°C | 13.7°C | 10.1°C | 28.0°C | -3.1°C | 1619 | 85% | 2.6 m/s |
2022 🌧️ | 18.2°C | 14.3°C | 10.4°C | 31.0°C | -2.6°C | 1703 | 83% | 2.3 m/s |
2021 | 18.1°C | 14.0°C | 9.9°C | 32.3°C | -2.5°C | 1094 | 81% | 2.4 m/s |
2020 | 18.0°C | 13.7°C | 9.4°C | 32.3°C | -2.9°C | 915 | 80% | 2.4 m/s |
2019 🔥 | 18.3°C | 14.0°C | 9.7°C | 32.1°C | -2.4°C | 901 | 81% | 2.4 m/s |
2018 | 17.7°C | 13.9°C | 10.0°C | 31.2°C | -2.1°C | 1275 | 83% | 2.3 m/s |
2017 | 17.4°C | 13.6°C | 9.7°C | 28.9°C | -3.0°C | 1381 | 83% | 2.3 m/s |
2016 | 18.0°C | 14.0°C | 10.0°C | 29.7°C | -3.9°C | 1031 | 82% | 2.5 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.
