What is the weather like in Hamilton in September?

Expect temperatures between 8°C and 15°C with 35% average rain probability and about 8 hours of sunshine daily.

What is the weather like in Hamilton in September?

Hamilton in September scores 63/100 based on 30 years of climate data. A reasonable choice for your trip.

Who should visit Hamilton in September?

September in Hamilton is ideal for: Cultural tourists, Business travelers.

Hamilton Weather in September | 30-Year Forecast

Avg High

15°C

Hottest around day 23

Avg Low

8°C

Coolest around day 1

Rainy Days

30days

35% avg rain chance

Sunshine

8hrs/day

Autumn season

Essential Travel Info for Hamilton

🗓️ Best Time to Visit 📖 Travel Guide 🍴 Food Guide

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 Hamilton

Smart Flight Estimator

Airport-to-Airport Logistics

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Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Remote

5/ 100

Traffic Index

Off the beaten path

Peak Daily Arrivals

slots per day

Peak

May

Low

Nov

Monthly Traffic Distribution

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Traffic Level

Low Season

Key Connections

Christchurch (CHC)

Wellington (WLG)

Gold Coast (OOL)

Sydney Kingsford Smith (SYD)

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 September a Good Time to Visit Hamilton?

👌A reasonable choice for your trip(63/100)

Short Answer

Hamilton shines in September with 15°C pleasant temperatures and minimal 35% rain chance. Expect 8.6 hours of sunshine daily - pack light layers for evenings.

Decision Factors

Vaccinations required

Yellow Fever

Seismically active region

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

Very high humidity

82% average humidity

Health precautions needed

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

Plenty of sunshine

8.6h of sunshine daily

Shoulder season - balanced conditions

77% of peak - good value with moderate crowds

Good For

🏛️
Cultural tourists
Comfortable conditions for exploring museums and sites
💼
Business travelers
Climate-controlled meetings unaffected by weather

Who Should Avoid

👴
Elderly travelers
82% humidity creates difficult conditions

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Hamilton in September averages 15°C with 35% precipitation probability."

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

Frequently Asked Questions: Hamilton in September

What are the temperatures in Hamilton in September?

Daytime highs average 15°C, nights drop to 8°C. Temperatures remain fairly consistent.

How many rainy days in Hamilton in September?

Expect around 30 days with measurable rainfall. An umbrella is advisable.

What to wear in Hamilton in September?

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

Is September peak season in Hamilton?

This is shoulder season—moderate prices and manageable crowds.

Hamilton Weather in September

Hamilton September Weather Calendar

Essential Travel Info for Hamilton

Travel Intelligence

Smart Flight Estimator

Flight Connectivity Analysis

Monthly Traffic Distribution

Key Connections

Health & Safety Advisory

COVID-19

Hepatitis A

Hepatitis B

Measles

Rabies

Yellow Fever

Is September a Good Time to Visit Hamilton?

Decision Factors

Good For

Who Should Avoid

Related Guides

Frequently Asked Questions: Hamilton in September

What are the temperatures in Hamilton in September?

How many rainy days in Hamilton in September?

What to wear in Hamilton in September?

Is September peak season in Hamilton?