How Wet Is Mount Waialeale?

With an average of around 450 inches of rain per year, Mount Waialeale is often touted as the wettest place on Earth. In 1982, the mountain experienced a mind-boggling 683 inches of rain, the highest ever recorded in the area.

Even the name lets you know what to expect. In Hawaiian, the word Waialeale means “overflowing water.” Interestingly, just a few miles away, average rainfall drops to just 10 inches per year, making the contrast between Mount Waialeale and its environs even more dramatic.

Why Is Mount Waialeale Included as One of the Wettest Place on Earth?

Like most of the mountains found in Hawaii, Mount Waialeale began its existence as a volcano. While it’s been dormant for years, the volcanic shield and steep cliffs formed by earlier activity now act as a trap for the rainfall-laden trade winds blowing in from the Pacific Ocean.

Part of the reason for Mount Waialeale’s wet nature is its position in the Hawaiian islands. As the northernmost large Hawaiian island, Kauai gets exposed to winter rains and front winds more than other islands in the chain. Because of the mountain’s shape and height, it lies under the trade wind inversion layer, which keeps trade winds from rising away and escaping before rain can fall. Meanwhile, the sharp cliffs encourage hot, humid air to rise quickly, which leads to a cycle of condensation and rain all concentrated in a small area.

What this means for you: an impressive display of crashing waterfalls and abundant foliage that makes for great snapshots and a moisture-laden back-to-nature vibe you can’t find anywhere else on Earth.

Impressive Mount Waialeale

At the center of this ancient volcano, a series of waterfalls cascade down into a barrel-like cavern with a freshwater pool at the base, creating a dramatic “Weeping Wall” that can be spotted from above on a helicopter tour of the area. The largest of these falls, Waipoo Falls, sends a steady stream of roiling water down 800 feet into the pool below.

All this water also feeds into four separate rivers — the Waimea, Hanapēpē, Makaweli and Wailua — helping cement Kauai’s place as the only Hawaiian island with navigable rivers. So when you’re headed out for a fun Wailua River kayaking trip to Kamokila Village or Fern Grotto with your family, give a thought — and a bit of thanks — to Mount Waialeale.



Discovering Nature’s Secrets: How Wettest Places on Earth are Chosen

The wettest places on Earth are determined by various types of precipitation like rain, snow, or fog. Several factors, such as wind patterns, terrain, temperature differences, and proximity to water bodies, influence this. Monsoon season showcases nature’s beauty, enhancing the greenery as water meets land. While some avoid traveling during heavy rains, the monsoon offers unique experiences only found during this time.

Beyond the Rain: A Comprehensive Guide to the Wettest Places on Earth

1. Mawsynram, India

Located in Meghalaya’s East Khasi Hills district, Mawsynram is celebrated as the wettest place on Earth, receiving so much rain that its average annual rainfall reaches a staggering 11,871 millimeters. Its proximity to the Bay of Bengal is a significant factor in this deluge. Warm, moisture-laden monsoonal winds from this bay, funneled by the surrounding mountains, drench Mawsynram, giving it unmatched precipitation levels. This region is blessed with abundant rivers and waterfalls. Mawsynram’s inhabitants have skillfully adapted to their moist environment, using reed canopies for farming activities and adding grass on their roofs to lessen the ceaseless sound of rain. Known as the ‘Abode of the Clouds’, Meghalaya enchants visitors with its various natural wonders, including cascading waterfalls and unique root bridges.



2. Cherrapunji, India

Garnering a remarkable 11,777 millimeters of rainfall annually, Cherrapunji stands as Earth’s penultimate rain-drenched locale and the second rainiest place on Earth. Only 15 kilometers from Mawsynram, Cherrapunji frequently endures prolonged rain spells, sometimes lasting an unyielding 15-21 days during the wet season. Perched upon the Khasi Hills, this region elevates at a stature of 4,500 feet above the ocean’s embrace. Winters in Cherrapunji present a paradox: residents grapple with water scarcity, even as thermometers register a brisk 7 degrees Celsius. Contrastingly, summers hover around a temperate 23 degrees Celsius. Beyond its meteorological claims, Meghalaya is enthralled with over a millennia’s worth of subterranean wonders. Notably, the Mawsmai cave, near Cherrapunji, remains a pinnacle of exploration for many.



3. Tutunendo, Columbia

Tutunendo, among Earth’s most drenched terrains, enjoys mere glimpses of sunlight, limited to just three to four hours daily. A persistent overcast dominates its skyline for the remaining hours. This Columbian haven, characterized by elevated humidity, tepid climes, subdued breezes, and abundant precipitation, rests adjacent to Quibdo—the planet’s most rain-soaked city. Remarkably, Tutunendo experiences biannual monsoons. Even during typically arid periods, such as February and March, rains grace its lands for an approximately 20 days each month, culminating in an annual deluge of 11,770 millimeters. A hallmark of this region is its myriad rivers, cascading effortlessly as mesmerizing waterfalls.

Notably, the two rainy seasons, amplified by the Pacific’s oceanic influences, infuse the land with relentless downpours, nourishing the verdant landscapes and dense rainforests. Quibdo, which lies a stone’s throw away from Tutunendo, wears the crown as the world’s wettest city. It is said that its residents rarely witness the heavens without the presence of ominous rain clouds, which perhaps explains why umbrellas are as commonplace as wallets in Quibdo. The persistent rainfall has carved out a unique way of life for the people in this region, weaving a tapestry of culture, tradition, and adaptation that is unrivaled. Amidst this watery milieu, the communities here have developed resilience, finding innovative ways to farm, build, and coexist with nature in a land where the sky frequently spills its bounty.



4. Cropp River, New Zealand

The Cropp River in New Zealand, spanning 5.6km, is the rainiest place in the southern hemisphere. It averages 11,515mm of rain annually. In December 1995, it recorded a remarkable 1,049mm in a single month. In New Zealand, the mountains get more rain than the flat areas. The Cleddau Valley in the south is another example of this rainy mountain trend.

This rain-soaked reputation makes both the Cropp River and the Cleddau Valley hotspots for researchers and weather enthusiasts. Their unique climates contribute to lush, verdant landscapes that are a haven for diverse wildlife. Tourists, too, flock to these areas, equipped with rain gear, to experience the unparalleled beauty of nature drenched in its prime. Moreover, this abundance of rainfall supports various ecosystems and plays a crucial role in maintaining the region’s freshwater reservoirs. As climate change continues to alter weather patterns globally, monitoring places like these becomes even more essential to understanding our planet’s evolving dynamics.



5. San Antonio de Ureca, Equatorial Guinea

Debundscha, nestled at the base of Mount Cameroon, is known for its constant rain, making it one of Earth’s rainiest locales with an annual rainfall of 10,299 millimeters. This has turned it into a major tourist attraction. It stands as Africa’s second most precipitous site. Three factors lead to its torrential downpour: equatorial positioning, the barrier of mountainous terrains, and proximity to the Atlantic coastline. The equatorial setting creates a continuously moist atmosphere, and the Atlantic brings rainclouds that are trapped by Mount Cameroon’s towering heights, peaking at 4,095 meters. These conditions create stunning vistas for those who visit.



Why Mount Waialeale Stands Out Among the Planet’s Rainiest Spots

Nestled in the heart of Kauai, Mount Waialeale boasts a mesmerizing beauty, but its most distinguishing feature is its astounding rainfall. Touted as one of the rainiest places on our planet, this majestic mountain receives an astonishing amount of precipitation annually. But what truly sets Mount Waialeale apart from other wet destinations isn’t just the quantity of rain it garners, but the unique ecosystem and unparalleled landscapes it nurtures as a result. Join us as we delve deeper into the reasons why Mount Waialeale truly stands out among the planet’s rain-soaked gems.

When it comes to natural beauty, Mount Waialeale’s high rainfall levels bring out the best of Kauai. Lots of rain means lots of lush foliage, flowing rivers and gorgeous waterfalls. The central peak, Kawaikini Peak, reaches 5,148 feet into the sky, and cloud cover typically obscures the highest point of the mountain.

Viewing the peak requires a combination of luck and planning. If you want to make the attempt, consider getting up early before the mid-day clouds move in and hike to Pu’u O Kila Lookout at Waimea Canyon, which stretches northward from the peak. Another option for avid hikers is to trek the 8-mile Alakai Swamp Trail located in Koke‘e State Park, where you can see views of the mountain about midway through your hike.

For most visitors, the best way to visit Mount Waialeale is via a helicopter tour, since trekking into the dramatic cavern at the center is typically considered an expert-level hike.

Whether your dream is to explore the lush trails surrounding Mount Waialeale or relax poolside with your favorite tropical cocktail, there’s plenty to do on Kauai’s South Shore. Book your stay at Koloa Landing Resort, the best resort in Kauai and start planning your island adventure today.