Northland has a warm temperate climate with warm summers and mild winters.
Northland has an average annual temperature of 16.6°C across all 3 cities, with approximately 1149 mm of annual precipitation and average humidity of 79%. Temperatures peak in February and drop to their lowest in August, while rainfall is highest during summer months.
The warmest city is Kaitaia with average July highs of 15.0°C, while Whangarei is the coldest with average January lows of 17.1°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 | ☀️ | 22.7°C | 20.1°C | 17.5°C | 29.2°C | 11.5°C | 75% | 79 | 5.0 | 6.60 |
| February | ☀️ | 23.2°C | 20.8°C | 18.3°C | 31.4°C | 11.5°C | 75% | 70 | 4.9 | 5.80 |
| March | ⛅ | 22.1°C | 19.7°C | 17.4°C | 26.7°C | 10.6°C | 76% | 83 | 5.0 | 4.80 |
| April | ⛅ | 20.1°C | 18.0°C | 15.9°C | 25.3°C | 9.1°C | 78% | 95 | 5.1 | 3.40 |
| May | ⛅ | 17.8°C | 16.0°C | 14.2°C | 23.1°C | 6.5°C | 79% | 100 | 5.5 | 2.50 |
| June | ⛅ | 15.8°C | 14.1°C | 12.4°C | 20.5°C | 5.4°C | 81% | 123 | 5.7 | 2.00 |
| July | ⛅ | 14.9°C | 13.2°C | 11.5°C | 19.4°C | 5.1°C | 81% | 135 | 5.9 | 2.20 |
| August | ⛅ | 14.8°C | 13.0°C | 11.3°C | 18.9°C | 4.6°C | 81% | 124 | 5.7 | 3.00 |
| September | ⛅ | 15.8°C | 13.8°C | 11.8°C | 20.9°C | 6.3°C | 81% | 100 | 5.7 | 4.10 |
| October | 🌤️ | 17.2°C | 14.9°C | 12.7°C | 22.3°C | 7.3°C | 80% | 78 | 5.6 | 5.20 |
| November | ⛅ | 18.9°C | 16.5°C | 14.1°C | 26.0°C | 9.0°C | 78% | 83 | 5.4 | 6.00 |
| December | ☀️ | 21.1°C | 18.6°C | 16.2°C | 26.9°C | 10.6°C | 77% | 79 | 5.0 | 6.40 |
Showing average climate conditions across 45 years (1981–2025) · averaged across all 3 cities in Northland
🧥 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 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 81% in July · annual avg 79%
Monthly averages · 1981–2025
Across 45 years, Northland's temperature shows a slight warming trend over the past decade. 1998 was the warmest year overall and 1992 the coolest.
The warmest year on record was 1998 (avg: 17.8°C), while the coldest year was 1992 (avg: 15.4°C).
Averaged across all 3 cities in Northland · Last 30 years · °C
Averaged across all 3 cities in Northland · Last 30 years · mm/year
🔥 hottest · ❄️ coldest · 🌧️ wettest
ℹ️ Values are averages across all 3 cities in Northland for each year.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall (mm) | Avg Humidity | Avg Wind |
|---|---|---|---|---|---|---|---|---|
2025 | 19.4°C | 17.4°C | 15.3°C | 26.3°C | 6.8°C | 1433 | 80% | 5.3 m/s |
2024 | 19.0°C | 16.9°C | 14.7°C | 27.3°C | 7.5°C | 993 | 79% | 5.0 m/s |
2023 | 18.5°C | 16.6°C | 14.7°C | 26.2°C | 6.6°C | 1500 | 82% | 5.6 m/s |
2022 🌧️ | 19.3°C | 17.4°C | 15.5°C | 26.7°C | 7.3°C | 1532 | 80% | 5.4 m/s |
2021 | 18.9°C | 16.9°C | 14.9°C | 26.4°C | 6.9°C | 1374 | 80% | 5.2 m/s |
2020 | 19.1°C | 17.0°C | 14.8°C | 31.4°C | 7.4°C | 1112 | 78% | 5.1 m/s |
2019 | 19.4°C | 17.2°C | 14.9°C | 28.6°C | 8.0°C | 827 | 77% | 5.3 m/s |
2018 | 19.1°C | 17.0°C | 14.9°C | 27.7°C | 7.4°C | 1188 | 79% | 5.1 m/s |
2017 | 19.0°C | 16.9°C | 14.8°C | 29.8°C | 6.4°C | 1194 | 79% | 5.2 m/s |
2016 | 19.4°C | 17.3°C | 15.1°C | 27.4°C | 7.1°C | 1159 | 78% | 5.2 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.
