30YearWeather
Kahului in September
Kahului weather in September - United States
☀️Hot & Sunny

Kahului Weather in September

Plan your September trip to Kahului, United States. Based on 30 years of NASA data, expect temperatures of 30°C (high) to 24°C (low), with 2% rain probability and 8 hours of daily sunshine. Great conditions with only 0 rainy days expected.

Avg High
30°C

Hottest around day 17

Avg Low
24°C

Coolest around day 6

Rainy Days
0days

2% avg rain chance

Sunshine
8hrs/day

Autumn season

Kahului September Weather Calendar

Click any day to see detailed weather information

Currency

USD

$ United States dollar

Language

English

Driving

Right side

Safety

Moderate Safety

GPI: 2.44

Travel Intelligence

Exclusive flight analytics & health data for Kahului

Smart Flight Estimator

Airport-to-Airport Logistics

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Add your home location in settings to see airport details.

Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Moderate
42/ 100
Traffic Index

Balanced traffic

Peak Daily Arrivals

0

slots per day

Peak

May

Low

Dec

Monthly Traffic Distribution

90
Jan
88
Feb
96
Mar
78
Apr
118
May
76
Jun
66
Jul
75
Aug
66
Sep
69
Oct
55
Nov
49
Dec
Traffic Level
Low Season

Key Connections

Honolulu (HNL)
San Francisco (SFO)
Los Angeles (LAX)
Seattle Tacoma (SEA)
Phoenix Sky Harbor (PHX)

Health & Safety Advisory

CDC travel health recommendations

No Requirements

No Special Vaccinations Required

Standard travel precautions apply

Source: CDC Travelers' Health

View Complete Health Guide

Is September a Good Time to Visit Kahului?

👌Decent conditions for most activities
Short Answer

Storm season alert for Kahului in September: beyond the 30°C, 2% rain averages, hurricane risk requires travel insurance and schedule flexibility.

Decision Factors

Eastern Pacific Hurricane season active

Eastern Pacific zone - expect potential eastern pacific hurricane activity

Excellent dry conditions

Only 2% rain probability - ideal for outdoor activities

Plenty of sunshine

11.2h of sunshine daily

Shoulder season - balanced conditions

56% of peak - good value with moderate crowds

Good For

  • 👨‍👩‍👧‍👦
    Families with children

    Comfortable 29.7°C temperatures and low 2% rain risk

  • 🥾
    Outdoor enthusiasts

    Ideal hiking conditions: 29.7°C, 2% rain chance

  • 📸
    Photographers

    11.2h sunshine, 65% clear skies for golden hour shots

  • 🏛️
    Cultural tourists

    Comfortable conditions for exploring museums and sites

  • 💑
    Honeymoon couples

    Wedding score 99/100 with romantic weather conditions

Who Should Avoid

  • 🏖️
    Beach lovers

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

  • 💼
    Business travelers

    Storm season may cause flight disruptions

  • 🌡️
    Heat-sensitive visitors

    34°C feels-like temperature creates discomfort

900 observations30-year historical data
Confidence: 95%

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Kahului in September averages 30°C with 2% precipitation probability."

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

Frequently Asked Questions: Kahului in September

What are the temperatures in Kahului in September?

Daytime highs average 30°C, nights drop to 24°C. Temperatures remain fairly consistent.

How many rainy days in Kahului in September?

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

What to wear in Kahului in September?

Light, breathable fabrics. Don't forget sunglasses and a hat.

Is September peak season in Kahului?

This is shoulder season—moderate prices and manageable crowds.