Ulva Island
- Annual mean
- 10.5 °C
- Warmest month
- February
- Wettest month
- January
Review annual cycles in temperature, precipitation, wind, and daylight duration.
Analyze twelve-month climate normals for Rakiura National Park based on representative data from 1991 to 2020. These measurements track average temperature, precipitation rates, relative humidity, wind speed, and monthly daylight hours at a single coordinate. The data provides a long-term climatological perspective rather than current weather or site-specific forecasts.
Analyzing the relationship between ocean-buffered monthly temperatures and steady daily rainfall.
Evaluate seasonal variations in temperature bounds, daily precipitation rates, humidity, and wind
| Mean temperature | Precipitation | Humidity | Wind speed | Daylight | |
|---|---|---|---|---|---|
| January | 13.1 °C8.5° to 19.2° | 3.7 mm/day | 80.7% | 5.4 m/s | 15.2 hours |
| February | 13.3 °C8.8° to 19.5° | 3.4 mm/day | 81.1% | 5.1 m/s | 14 hours |
| March | 12.6 °C8.2° to 18.5° | 3.3 mm/day | 82% | 5.3 m/s | 12.3 hours |
| April | 11.4 °C6.9° to 16.7° | 3.4 mm/day | 82.7% | 5.6 m/s | 10.6 hours |
| May | 10.2 °C5.6° to 14.9° | 3.7 mm/day | 84.5% | 6 m/s | 9.2 hours |
| June | 8.6 °C4.7° to 12.9° | 3.5 mm/day | 84.6% | 6.1 m/s | 8.4 hours |
| July | 8 °C4.3° to 12° | 3.1 mm/day | 84.6% | 5.8 m/s | 8.8 hours |
| August | 8.2 °C4.1° to 12.6° | 3 mm/day | 83.9% | 5.8 m/s | 10 hours |
| September | 8.9 °C4.5° to 14.2° | 3.3 mm/day | 82.1% | 5.9 m/s | 11.7 hours |
| October | 9.6 °C5.2° to 15.4° | 3.6 mm/day | 80.5% | 6.1 m/s | 13.4 hours |
| November | 10.5 °C5.9° to 16.7° | 3.5 mm/day | 80.3% | 5.8 m/s | 14.9 hours |
| December | 12 °C7.5° to 18.4° | 3.4 mm/day | 80.7% | 5.2 m/s | 15.6 hours |
See two months side by side and how much they differ. Both use the same 1991–2020 climate normals and NASA POWER data point as the table above, so they show typical conditions, not a forecast.
Comparing long-term monthly averages for temperature, precipitation, wind, and daylight duration
Interactive climate map
Open the climate map to compare monthly temperature, precipitation, and other averages.
Examine monthly temperature, precipitation, and daylight cycles across diverse geographic settings



Delve deeper into the mapped terrain and unique protected-area geography of Rakiura National Park. Understanding this remote landscape offers critical insight into the protected areas of New Zealand and the subantarctic region. Continue your exploration of its distinct features and its place within the national park atlas.