It honestly depends on how the weather is on the day of the tour. Most of the tours are during the summer, so the temperature shouldn’t be too cold. However, it can be very windy and rainy in the area so we recommend checking the weather forecast for the day of your tour. Please make sure to bring appropriate clothing for the weather of the day. For example, we highly recommend bringing a waterproof jacket when there is a potential for rain. Even when it’s sunny and warm, we recommend that you bring a sweater with you. The temperature inside the volcano is always the same – around 4°C (37°F). That’s NOT t-shirt temperature! We also recommend that you wear hiking boots if you have them. Sneakers will work, but they will definitely get dirty and may get some punctures.