30YearWeather
Wellington in May
Wellington weather in May - New Zealand
🌤️Mild & Comfortable

Wellington Weather in May

Plan your May trip to Wellington, New Zealand. Based on 30 years of NASA data, expect temperatures of 14°C (high) to 11°C (low), with 25% rain probability and 8 hours of daily sunshine. The Coastal Waters averages 16°C in May. Pack rain gear for around 15 rainy days.

Avg High
14°C

Hottest around day 1

Avg Low
11°C

Coolest around day 30

Rainy Days
15days

25% avg rain chance

Sunshine
8hrs/day

Spring season

Sea Temperature in May

Coastal Waters(Ocean)

15.5°C

Monthly Average

Water Feel
💧Refreshing

Consider a wetsuit for extended swimming

Swim Rating
🏄Cool, wetsuits recommended

Based on average sea surface temperature

Body of Water
Coastal Waters

Ocean

Wellington coastline

Wellington May Weather Calendar

Click any day to see detailed weather information

Currency

NZD

$ New Zealand dollar

Language

English

+2 more

Driving

Left side

Safety

Very High Safety

GPI: 1.269

Travel Intelligence

Exclusive flight analytics & health data for Wellington

Smart Flight Estimator

Airport-to-Airport Logistics

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Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Moderate
41/ 100
Traffic Index

Balanced traffic

Peak Daily Arrivals

0

slots per day

Peak

Aug

Low

Nov

Monthly Traffic Distribution

92
Jan
96
Feb
95
Mar
87
Apr
97
May
91
Jun
92
Jul
114
Aug
100
Sep
99
Oct
81
Nov
100
Dec
Traffic Level
Low Season

Key Connections

Christchurch (CHC)
Auckland (AKL)
Nelson (NSN)
Blenheim Woodbourne (BHE)
Hamilton (HLZ)

Health & Safety Advisory

CDC travel health recommendations

6 Recommendations
COVID-19

All eligible travelers should be up to date with their COVID-19 vaccines. Please seeYour COVID-19 Vaccinationfor more information.

Hepatitis A

Consider hepatitis A vaccination for most travelers. It is recommended for travelers who will be doing higher risk activities, such as visiting smaller cities, villages, or rural areas where a traveler might get infected through food or water. It is recommended for travelers who plan on eating street food.

Hepatitis B

Recommended for unvaccinated travelers younger than 60 years old traveling to New Zealand. Unvaccinated travelers 60 years and older may get vaccinated before traveling to New Zealand.

Measles

Cases of measles are on the rise worldwide. Travelers are at risk of measles if they have not been fully vaccinated at least two weeks prior to departure, or have not had measles in the past, and travel internationally to areas where measles is spreading.All international travelers should be fully vaccinated against measles with the measles-mumps-rubella (MMR) vaccine, including an early dose for infants 6–11 months, according toCDC’s measles vaccination recommendations for international travel.

Rabies

Dogs infected with rabies are not commonly found in New Zealand.If rabies exposures occur while in New Zealand, rabies vaccines may only be available in larger suburban/urban medical facilities.Rabies pre-exposure vaccination considerations include whether travelers 1) will be performing occupational or recreational activities that increase risk for exposure to potentially rabid animals and 2) might have difficulty getting prompt access to safe post-exposure prophylaxis.Please consult with a healthcare provider to determine whether you should receive pre-exposure vaccination before travel.For more information, seecountry rabies status assessments.

Yellow Fever

CDC recommendations:Vaccine isnotrecommended.Country entry requirements:Vaccine isnotrequired.Updated April 23, 2025

Source: CDC Travelers' Health

View Complete Health Guide

Is May a Good Time to Visit Wellington?

👌Good option with minor considerations
Short Answer

Don't expect beach weather in Wellington's May: 15.5°C cold seas despite 15°C air temps. Coastal scenery remains beautiful, just pack warm layers.

Decision Factors

Vaccinations required

Yellow Fever

Seismically active region

35 earthquakes recorded in this month (30-year data)

Rough sea conditions

1.95m average wave height - Surfers Only

Peak tourist season

85% of annual peak - expect crowds and high prices

Cold sea - swimming challenging

15.5°C sea temperature - Polar Plunge

Health precautions needed

Be aware of: Leptospirosis, Hantavirus, Tuberculosis (TB)

Good For

  • 🏛️
    Cultural tourists

    Comfortable conditions for exploring museums and sites

  • 💼
    Business travelers

    Climate-controlled meetings unaffected by weather

  • 🎯
    Adventure seekers

    1.95m waves - good for surfing and water sports

Who Should Avoid

  • 🏖️
    Beach lovers

    Sea temperature only 15.5°C - too cold for comfortable swimming

  • 💰
    Budget travelers

    Peak season means premium prices everywhere

  • 👴
    Elderly travelers

    79% humidity creates difficult conditions

930 observations30-year historical data
Confidence: 99%

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Wellington in May averages 14°C with 25% precipitation probability."

📊 Source: 30YearWeather.com🛰️ Data: NASA POWER (1991-2021)View Methodology →

Frequently Asked Questions: Wellington in May

What are the temperatures in Wellington in May?

Daytime highs average 14°C, nights drop to 11°C. Temperatures remain fairly consistent.

How many rainy days in Wellington in May?

Expect around 15 days with measurable rainfall. Rain is unlikely to disrupt plans.

What to wear in Wellington in May?

Layers are key. A medium-weight jacket and closed-toe shoes.

Is May peak season in Wellington?

This is shoulder season—moderate prices and manageable crowds.