30YearWeather
Sumba
When to avoid visiting Sumba, Indonesia
Seasonal Comparison

Least Favorable Months in Sumba

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

January55/100February56/100March56/100

Good news: Sumba has no truly bad months!

With a score of 55/100, even January(the "worst" month) is still a reasonable time to visit. These months are simply the least favorable compared to other months in Sumba, not objectively bad. Many travelers enjoy visiting during these periods and benefit from lower prices and fewer crowds.

Why January is the Least Favorable (But Still Okay) Time to Visit Sumba

Is January a Good Time to Visit Sumba?

👌Worthwhile timing with some trade-offs
Short Answer

January brings oppressive conditions to Sumba: 30°C highs feel like 40°C due to 84% humidity. Only recommended for heat-tolerant travelers willing to limit outdoor activities during peak afternoon hours.

Decision Factors

Oppressive heat and humidity

30.4°C with 84% humidity - challenging conditions

High rainfall period

70% rain probability, 8.5mm average

Vaccinations required

Yellow Fever

Feels significantly hotter than 30.4°C

Heat index: 40°C due to 84% humidity

Warm tropical seas

29.7°C sea temperature - Hot Soup

Seismically active region

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

Good For

  • 💼
    Business travelers

    Climate-controlled meetings unaffected by weather

Who Should Avoid

  • 💰
    Budget travelers

    Peak season means premium prices everywhere

  • 👨‍👩‍👧‍👦
    Families with children

    40°C heat index dangerous for children

  • 👴
    Elderly travelers

    Heat index of 40°C poses health risks

  • 🥾
    Outdoor enthusiasts

    70% rain probability disrupts outdoor activities

930 observations30-year historical data
Confidence: 99%

Key Challenges During These Months

Extreme Heat

Temperatures can become dangerously hot with oppressive humidity

Heavy Rainfall

Monsoon or rainy season brings frequent downpours and potential flooding

Months to Avoid: Detailed Breakdown

Worst55

January

Oppressive heat and humidity, High rainfall period

View details
2nd Worst56

February

Oppressive heat and humidity, High rainfall period

View details
3rd Worst56

March

Oppressive heat and humidity, High rainfall period

View details

Looking for the Best Time Instead?

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

Best Time to Visit Sumba

Frequently Asked Questions

When should I avoid visiting Sumba?

Based on 30 years of data, the most challenging months are January, February, March. Primary concerns include: oppressive heat and humidity, high rainfall period.

What is the worst month to visit Sumba?

January is typically the most challenging month, scoring only 55/100 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.