What city rains the most days

So you're wondering which place sees the most rainy days — not the heaviest downpours, just the most days with some kind of precipitation. Turns out the answer isn't one single spot but a handful of cities where drizzle and gray skies are basically the norm. Based on solid meteorological data, the winner tends to be somewhere near the equator or tucked against a big mountain range where moisture gets squeezed out like a sponge.

The World Meteorological Organization and various national weather services point to Hilo, Hawaii as the city with the most rainy days per year — about 276. That's roughly 75% of the year where you can expect at least some rain. Places like Quibdó and Buenaventura in Colombia aren't far behind, often clocking over 250 rainy days annually. These numbers aren't perfect but they're consistent across multiple datasets.

What is the difference between rainy days and total rainfall?

Here's where people get confused. "Rainy days" means days with at least 0.01 inches (0.25 mm) of precipitation. Total rainfall is just how much water actually falls. A city might have tons of rainy days but barely any accumulation — think constant mist or light drizzle. On the flip side, a place could have fewer rainy days but way more total rain if it gets slammed with heavy storms.

Take Hilo versus Mawsynram, India. Mawsynram gets over 11,000 mm of rain annually — the highest on Earth — but fewer rainy days than Hilo because its rain comes in intense monsoon bursts. So when you're asking "what city rains the most days," you're really asking about frequency, not volume. They're totally different things.

Which cities have the highest number of rainy days?

Here's a table with the main contenders, based on long-term climate data that's about as reliable as you'll get.

Just a heads up — these numbers are approximate averages over decades. Bergen in Norway and Auckland in New Zealand have high counts too, but they don't crack the top five.

Why does Hilo, Hawaii, rain so many days?

It's all about location. Hilo sits on the windward (eastern) side of the Big Island, where trade winds blow in from the northeast carrying moist Pacific air. When that air hits Mauna Kea and Mauna Loa, it's forced upward, cools, and condenses into clouds and rain. This orographic lift creates almost constant drizzle and frequent showers. You'll see cloud cover most of the time with brief sunny breaks — honestly it's why Hilo's the wettest city in the US by days of precipitation.

What are the top 3 rainiest cities in the world by frequency?

Based on rainy days per year, here's the consistent top three:

• Hilo, Hawaii, USA: Around 276 rainy days annually. The rain's usually light to moderate but it's incredibly frequent. You learn to live with it.
• Quibdó, Colombia: About 265 rainy days. It's in the Chocó region — one of the wettest places on Earth — where the Intertropical Convergence Zone and the Andes combine for almost daily rainfall.
• Buenaventura, Colombia: Roughly 258 rainy days. Another Colombian city in that same soaking region, a major port where rain is just part of daily life.

Does it rain more in Seattle or Hilo?

This one always comes up. Seattle's famous for rain but it's honestly not that rainy by these standards. Seattle gets about 150 rainy days per year. Hilo has 276 — nearly double. Sure, Seattle's rain is often just a light drizzle, but Hilo's is more frequent even if it's also often light. Total rainfall? Seattle gets around 37 inches annually while Hilo gets about 130. So Hilo wins on both frequency and volume. Seattle's reputation is mostly a myth when you look at the numbers.

Checklist for understanding rainy day data

• Check whether the data is for "rainy days" (frequency) or "total rainfall" (volume). They measure completely different things.
• Look at the time period. Thirty-year averages are way more reliable than single-year data.
• Know that definitions vary. Most use 0.01 inches (0.25 mm) as the threshold for a "rainy day."
• Watch out for microclimates. A city like Hilo can have a totally different climate from somewhere just 20 miles away.
• Stick with official sources: NOAA, World Meteorological Organization, or national meteorological services.

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