30YearWeather
Colombo
When to avoid visiting Colombo, Sri Lanka
Seasonal Comparison

Least Favorable Months in Colombo

Based on 30 years of NASA satellite data, Colombo enjoys relatively good weather year-round. However, if you're comparing months, May, June, July are the least favorable — though still perfectly visitable.

May47/100June47/100July47/100

Good news: Colombo has no truly bad months!

With a score of 47/100, even May(the "worst" month) is still a reasonable time to visit. These months are simply the least favorable compared to other months in Colombo, not objectively bad. Many travelers enjoy visiting during these periods and benefit from lower prices and fewer crowds.

Why May is the Least Favorable (But Still Okay) Time to Visit Colombo

Is May a Good Time to Visit Colombo?

🤔Requires preparation but many visit successfully
Short Answer

Storm season alert for Colombo in May: beyond the 30°C, 81% rain averages, hurricane risk requires travel insurance and schedule flexibility.

Decision Factors

Cyclone season active

Indian Ocean zone - expect potential cyclone activity

Oppressive heat and humidity

29.6°C with 86% humidity - challenging conditions

High rainfall period

81% rain probability, 7.8mm average

Vaccinations required

Yellow Fever

Feels significantly hotter than 29.6°C

Heat index: 38°C due to 86% humidity

Warm tropical seas

30.3°C sea temperature - Hot Soup

Good For

  • 💼
    Business travelers

    Climate-controlled meetings unaffected by weather

  • 🎯
    Adventure seekers

    1.63m waves - good for surfing and water sports

Who Should Avoid

  • 💰
    Budget travelers

    Peak season means premium prices everywhere

  • 👴
    Elderly travelers

    Heat index of 38°C poses health risks

  • 🥾
    Outdoor enthusiasts

    81% rain probability disrupts outdoor activities

  • 📸
    Photographers

    84% cloud cover limits natural light opportunities

930 observations30-year historical data
Confidence: 99%

Key Challenges During These Months

Extreme Heat

Temperatures can become dangerously hot with oppressive humidity

Months to Avoid: Detailed Breakdown

Worst47

May

Cyclone season active, Oppressive heat and humidity

View details
2nd Worst47

June

Cyclone season active, Oppressive heat and humidity

View details
3rd Worst47

July

Cyclone season active, Oppressive heat and humidity

View details

Looking for the Best Time Instead?

Discover the optimal months to visit Colombo with ideal weather conditions, fewer crowds, and better prices.

Best Time to Visit Colombo

Frequently Asked Questions

When should I avoid visiting Colombo?

Based on 30 years of data, the most challenging months are May, June, July. Primary concerns include: cyclone season active, oppressive heat and humidity.

What is the worst month to visit Colombo?

May is typically the most challenging month, scoring only 47/100 in our travel conditions analysis.

Can I still visit during these months?

Yes, many travelers still visit during challenging months. Come prepared with appropriate gear, flexible bookings, and backup plans. Lower prices and fewer tourists can offset the weather challenges.

Are hotels cheaper during these months?

Often yes. Low season typically means reduced hotel rates, easier reservations, and fewer crowds at popular attractions. Some travelers prefer this trade-off.