Kermadec Weather in May
May in Kermadec brings pleasant temperatures around 22°C (72°F) during the day, dropping to 19°C (66°F) at night, with quite a bit of rainfall expected, averaging around 111 mm (4.4 in) for the month.
Rainfall in Kermadec in May
Past climate data indicates that roughly 16 days will see rain, totalling around 111 mm (4.4 in) for the month. This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.
Temperature in Kermadec in May
Daytime temperatures in Kermadec reach 22°C (72°F) in May, dropping to 19°C (66°F) at night. Conditions are often most pleasant around the middle of the day. At 19°C (66°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.
Sunshine in Kermadec in May
The area experiences a moderate amount of sunshine, with approximately 154 hours of sunlight expected. This means a decent mix of sun and overcast.
Average water temperature in May
The water is 20°C (68°F) this month — a comfortable temperature that most swimmers enjoy. Warm enough to stay in without getting cold quickly.If your ideal day consists of dry skies and pleasant temperatures, January, October, November and December typically offer the best circumstances for Kermadec.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Kermadec Islands, check out our Kermadec's climate page.
Kermadec Temperature in May
Min Temperature
19°C (66°F)
Max Temperature
22°C (72°F)
Water Temperature
20°C (68°F)
Chance of Rain
53%
Precipitation
111 mm (4.4 in)
Rainy days
16 days
Humidity
80%
Sunshine
154 hours
Percentage Sunshine
49%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Kermadec typically stay consistent throughout May, with daily highs averaging around 22°C (72°F). Nights are pleasant, with lows typically ranging from 16°C (61°F) to 18°C (64°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for Kermadec in May
Browse day-by-day weather records for Kermadec spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Kermadec historical weather extremes in May
Based on weather observations in Kermadec between 1976 and 2026, these are the recorded extremes during May.
- The warmest day in May was on May 2, 2025, with a maximum of 26°C (79°F).
- The lowest daytime temperature in May was 15°C (59°F), recorded on May 30, 1989.
- The lowest overnight temperature recorded in May was 10°C (50°F) (May 5, 1976).
Best Places in Kermadec Islands in May
Find out more about the weather in Kermadec Islands and which places have the best travel conditions in this month. See all of Kermadec Islands in May →
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What to Wear in Kermadec in May
For Kermadec in May, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. The water temperature sits at about 20°C (68°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in Kermadec in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Kermadec Islands, check out our Kermadec's climate page.
Temperature Rainfall Sunshine Humidity Water Temp
See the full Kermadec climate overview or explore weather in Kermadec Islands.
