Kermadec Temperature by Month
Kermadec in Kermadec Islands enjoys a stable climate, with daytime temperatures staying close to 22°C (72°F) throughout the year. Explore the full monthly breakdown below.
Kermadec Monthly Temperatures
Year-round, Kermadec experiences a consistently pleasant climate. Maximum daytime temperatures range from a comfortable 25°C (77°F) in February to a pleasant 19°C (66°F) in the coolest month, August. Nighttime temperatures range from 23°C (73°F) in February to 16°C (61°F) in August.
The chart below illustrates the average maximum day and minimum night temperatures in Kermadec by month:
From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak. February, the warmest month, averages 166 hours of sunshine.
The chart below shows the average temperature throughout the year:
Daily Historical Temperatures
50-year average (1976-2025)
Average high and low temperatures for each day of the month based on long-term records.
Average temperatures in June
Historical Kermadec Temperatures: 1976-2026
Browse day-by-day temperature records for Kermadec spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Kermadec vs Kermadec Islands
The map below shows the annual temperature across Kermadec Islands. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
cold
very cold
Kermadec vs World: Temperature Compared
Kermadec's average annual maximum temperature is 22°C (72°F). To put that in context, here's how it compares to a few well-known destinations:
Lisbon, Portugal averages 21°C (70°F) annually — warm summers, mild winters, and rain mainly in the cooler months.
Glasgow, Scotland averages 13°C (55°F) a year — mild but often grey, with cold winters and rarely hot summers.
Boston, USA averages 16°C (61°F) annually, with four distinct seasons and cold winters that rival northern Europe.
Brisbane, Australia averages 26°C (79°F) a year, with warm winters and hot, humid summers.
What Does the Temperature Feel Like in Kermadec?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In Kermadec, August is the coolest month, with average highs of 19°C (66°F) and humidity around 82% — considered very high. In February, the warmest month, temperatures average 25°C (77°F) with 85% humidity — conditions that feel very high. For a full picture, see our humidity page.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained — so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.
For more on Kermadec's weather — including monthly rainfall, sunshine hours, and humidity — visit our Kermadec climate page.
