Weather, Volcano Alerts & Closures

This page is informational. Binding terms are defined by the documents below.

Order of precedence (if there is any discrepancy):

  1. Official E-Voucher / Invoice (PDF) (your booking-specific contract)
  2. Booking, Payment & Cancellation Policy
  3. Inclusions & Exclusions Policy
  4. Travel Guide pages (informational)

1) Why conditions can change fast

Mountain weather and volcanic activity can change quickly. Safety decisions may require route adjustments, rescheduling, or site substitutions.

2) What JVTO monitors

JVTO monitors relevant conditions to support trip planning and on-ground coordination. Final decisions regarding site access and closures are made by the relevant park offices and local authorities.

  • local weather conditions along the route
  • site access conditions communicated by local authorities/park offices
  • operational constraints (road closures, safety alerts)

3) How JVTO handles closures

If a site is closed or unsafe:

  • JVTO may substitute an alternative site or adjust timings;
  • JVTO will prioritize safety and practicality;
  • the remedy depends on what costs are already committed to third parties (e.g., tickets, hotels).

Binding terms are in the Booking, Payment & Cancellation Policy and your voucher.

4) What you should prepare

Prepare for cold mornings and wet conditions:

  • warm layers (especially for sunrise)
  • rain protection
  • proper footwear for wet terrain

5) Cancellations vs closures

Guest cancellations follow the standard cancellation rules as stated in the Booking, Payment & Cancellation Policy

6) Driving times & buffers

Driving times in East Java can vary due to traffic, weather, and road works. JVTO includes buffer planning where possible, but flexibility is essential in mountain logistics.

7) Communication

JVTO will communicate changes through official channels. Please keep your WhatsApp reachable during travel dates. Changes may be communicated at night or early morning due to sunrise or trek schedules.

8) Binding note

Your Official E-Voucher / Invoice (PDF) remains the booking-specific reference for inclusions and plan details.

Frequently Asked Questions

What happens if Bromo is closed due to volcanic activity?

If Bromo is closed for safety reasons, JVTO may substitute with alternative viewpoints or activities. The specific remedy depends on what costs have already been committed and the terms in your Booking, Payment & Cancellation Policy.

Do I get a refund if weather affects my tour?

Weather-related changes are handled differently from guest cancellations. If JVTO can provide alternative arrangements, these will be offered. Refunds depend on what costs have already been committed to third parties (hotels, permits, etc.).

How will I know if there are last-minute changes?

JVTO communicates through official WhatsApp channels. Keep your phone accessible, especially on travel dates. Our crew will also provide real-time updates during the tour.

What should I pack for changing mountain weather?

Pack layers: warm clothing for cold mornings (especially for Bromo sunrise), waterproof jacket, proper hiking shoes with good grip, and sun protection. Check our Packing & Fitness guide for detailed recommendations.

Can I cancel my tour if the weather forecast looks bad?

Guest cancellations follow the standard cancellation rules, including the 48-hour cutoff. Weather forecasts don't automatically trigger cancellations - JVTO makes decisions based on actual conditions and safety assessments on the day.

Important Notice About Natural Phenomena

Certain natural phenomena like blue fire at Ijen and perfect sunrise views at Bromo depend on:

  • Wind direction and gas levels at Ijen
  • Cloud cover and fog conditions
  • Park regulations and crowd control measures
  • Current volcanic activity levels

JVTO plans itineraries based on the best available local knowledge, but these phenomena are never guaranteed. Screenshots or photos on our website are examples of past conditions, not promises for your specific date.

Weather Preparedness Checklist

For Cold Mornings (Bromo/Ijen)

  • Warm jacket or fleece layer
  • Thermal base layer
  • Beanie or warm hat
  • Gloves (lightweight)
  • Extra pair of socks

For Wet Conditions (Waterfalls)

  • Waterproof jacket or poncho
  • Quick-dry clothing
  • Waterproof shoes or sandals with grip
  • Waterproof bag for electronics
  • Small towel and change of clothes