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Wettest Places on Earth by Average Annual Rainfall

This chart ranks the wettest places on Earth by average annual rainfall, in millimetres. Mawsynram in India, drenched by monsoon clouds funnelled off the Bay of Bengal, is widely regarded as the wettest inhabited place on the planet.

About: Wettest Places on Earth by Average Annual Rainfall

Overview of the data behind this chart
This chart ranks the wettest places on Earth by average annual rainfall, in millimetres. Mawsynram in India, drenched by monsoon clouds funnelled off the Bay of Bengal, is widely regarded as the wettest inhabited place on the planet.

AI Insight

Mawsynram, India, tops the list at about 11,872 mm of rain a year, roughly ten metres of water and more than fifteen times the global city average. Its neighbour Cherrapunji (11,777 mm) and Colombia's Tutunendo (11,770 mm) are nearly tied, showing that the wettest places on Earth are separated by only a few percent. Geography is the common thread: most of these locations sit where moisture-laden ocean winds are forced upward by mountains, wringing out enormous rainfall. India's Meghalaya hills, Colombia's Choco rainforest, New Zealand's Southern Alps (Cropp River, 11,516 mm) and the slopes of Cameroon and Hawaii all follow this pattern. The five wettest all exceed 10,000 mm annually, a staggering volume that shapes local life, agriculture and the record-breaking waterfalls and rivers these regions are known for.

Key Findings

Auto-computed highlights from this dataset
🏆
Mawsynram (India) leads with 11,872 in All Time.
📊
Average value in All Time: 11,038  ·  median: 11,516.
↔️
Gap in All Time: Mawsynram (India) is 1.2× larger than Mount Waialeale (Hawaii, USA).

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Wettest Places on Earth by Average Annual Rainfall

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Data Insights

Numbers, trends & sources behind this chart
Admin
Data Points
7
7 categories  ·  1 year
Top Value
11,872
Mawsynram (India)
Average Annual Rainfall (mm) · All Time
Metrics
1
Average Annual Rainfall (mm)
Period
All Time
Single year snapshot

Category Rankings

Average Annual Rainfall (mm) · All Time
# Category All Time
🥇 Mawsynram (India) 11,872
🥈 Cherrapunji (India) 11,777
🥉 Tutunendo (Colombia) 11,770
4 Cropp River (New Zealand) 11,516
5 Debundscha (Cameroon) 10,299
6 Big Bog (Hawaii, USA) 10,272
7 Mount Waialeale (Hawaii, USA) 9,763
Statistical Summary — Average Annual Rainfall (mm) · All Time
11,872
Maximum
9,763
Minimum
11,038
Average
11,516
Median

What This Data Shows

Auto-generated trend summaries per category
Mawsynram (India)
Recorded 11,872 Average Annual Rainfall (mm) in All Time.
Cherrapunji (India)
Recorded 11,777 Average Annual Rainfall (mm) in All Time.
Tutunendo (Colombia)
Recorded 11,770 Average Annual Rainfall (mm) in All Time.
Cropp River (New Zealand)
Recorded 11,516 Average Annual Rainfall (mm) in All Time.
Debundscha (Cameroon)
Recorded 10,299 Average Annual Rainfall (mm) in All Time.
Big Bog (Hawaii, USA)
Recorded 10,272 Average Annual Rainfall (mm) in All Time.
Mount Waialeale (Hawaii, USA)
Recorded 9,763 Average Annual Rainfall (mm) in All Time.

Full Data Table

7 records across 1 year
7 sourced
Category Metric All Time Source
Mawsynram (India) Average Annual Rainfall (mm) 11,872
Cherrapunji (India) Average Annual Rainfall (mm) 11,777
Tutunendo (Colombia) Average Annual Rainfall (mm) 11,770
Cropp River (New Zealand) Average Annual Rainfall (mm) 11,516
Debundscha (Cameroon) Average Annual Rainfall (mm) 10,299
Big Bog (Hawaii, USA) Average Annual Rainfall (mm) 10,272
Mount Waialeale (Hawaii, USA) Average Annual Rainfall (mm) 9,763

Data Sources & References

All external sources cited in this dataset

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