30YearWeather
Nuku'alofa in September
Nuku'alofa weather in September - Tonga
😊Warm & Pleasant

Nuku'alofa Weather in September

Plan your September trip to Nuku'alofa, Tonga. Based on 30 years of NASA data, expect temperatures of 23°C (high) to 21°C (low), with 19% rain probability and 8 hours of daily sunshine. The Coastal Waters averages 24°C in September. Great conditions with only 0 rainy days expected.

Avg High
23°C

Hottest around day 17

Avg Low
21°C

Coolest around day 2

Rainy Days
0days

19% avg rain chance

Sunshine
8hrs/day

Autumn season

Sea Temperature in September

Coastal Waters(Ocean)

24.1°C

Monthly Average

Water Feel
☀️Warm

Perfect for swimming and water sports

Swim Rating
Excellent for swimming

Based on average sea surface temperature

Body of Water
Coastal Waters

Ocean

Nuku'alofa coastline

Nuku'alofa September Weather Calendar

Click any day to see detailed weather information

Currency

TOP

T$ Tongan paʻanga

Language

English

+1 more

Driving

Left side

Travel Intelligence

Exclusive flight analytics & health data for Nuku'alofa

Smart Flight Estimator

Airport-to-Airport Logistics

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Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Remote
2/ 100
Traffic Index

Off the beaten path

Peak Daily Arrivals

0

slots per day

Peak

Nov

Low

Dec

Monthly Traffic Distribution

4
Jan
3
Feb
3
Mar
3
Apr
3
May
3
Jun
4
Jul
3
Aug
3
Sep
2
Oct
4
Nov
2
Dec
Traffic Level
Low Season

Key Connections

Nadi (NAN)
Auckland (AKL)
Sydney Kingsford Smith (SYD)

Health & Safety Advisory

CDC travel health recommendations

7 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

Recommended for unvaccinated travelers one year old or older going to Tonga.Infants 6 to 11 months old should also be vaccinated against Hepatitis A. The dose does not count toward the routine 2-dose series.Travelers allergic to a vaccine component should receive a single dose of immune globulin, which provides effective protection for up to 2 months depending on dosage given.Unvaccinated travelers who are over 40 years old, are immunocompromised, or have chronic medical conditions planning to depart to a risk area in less than 2 weeks should get the initial dose of vaccine and at the same appointment receive immune globulin.

Hepatitis B

Recommended for unvaccinated travelers of all ages traveling to Tonga.

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 Tonga.If rabies exposures occur while in Tonga, 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.

Typhoid

Recommended for most travelers, especially those staying with friends or relatives or visiting smaller cities or rural areas.

+1 more

Source: CDC Travelers' Health

View Complete Health Guide

Is September a Good Time to Visit Nuku'alofa?

👍Great time to visit - recommended
Short Answer

Ideal beach conditions in Nuku'alofa during September: 24.1°C turquoise waters, 24°C air, 19% rain. 1.9m calm waves suit families and swimmers alike.

Decision Factors

Vaccinations required

Yellow Fever

Seismically active region

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

Rough sea conditions

1.88m average wave height - Surfers Only

Ideal temperature range

23.5°C - perfect for sightseeing and outdoor activities

Pleasant swimming conditions

24.1°C sea temperature

Health precautions needed

Be aware of: Leptospirosis, Zika, Hantavirus

Good For

  • 🏖️
    Beach lovers

    24.1°C warm seas and 19% rain probability

  • 👨‍👩‍👧‍👦
    Families with children

    Comfortable 23.5°C temperatures and low 19% rain risk

  • 👴
    Elderly travelers

    Comfortable 23.5°C temperature range with manageable humidity

  • 🥾
    Outdoor enthusiasts

    Ideal hiking conditions: 23.5°C, 19% rain chance

  • 🏛️
    Cultural tourists

    Comfortable conditions for exploring museums and sites

Who Should Avoid

Suitable for most traveler types

900 observations30-year historical data
Confidence: 99%

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Nuku'alofa in September averages 23°C with 19% precipitation probability."

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

Frequently Asked Questions: Nuku'alofa in September

What are the temperatures in Nuku'alofa in September?

Daytime highs average 23°C, nights drop to 21°C. Temperatures remain fairly consistent.

How many rainy days in Nuku'alofa in September?

Expect around 0 days with measurable rainfall. Rain is unlikely to disrupt plans.

What to wear in Nuku'alofa in September?

Comfortable casual wear with a light jacket for evenings.

Is September peak season in Nuku'alofa?

This is typically peak season with higher prices. Book 2-3 months ahead.