Average Rainy - Precipitation days in Guam

Guam sees 243 days of precipitation annually, totaling to 2128 mm of rain. Learn more about it on this page.

Monthly Distribution of Rainy Days

Precipitation peaks in August with 362 mm falling over 20 rainy days. The driest period is March, receiving 59 mm across 20 rainy days.

Amsterdam Precipitation Days Compared World Wide

On average, Guam receives over 243 days of precipitation annually. For comparison, here is some data from popular tourist destinations around the world:

In Riyadh, Saudi Arabia, there are about 29 precipitation days annually, reflecting its dry desert environment.

In Kuala Lumpur, Malaysia, the city experiences around 212 precipitation days annually, consistent with its tropical rainforest climate.

In Lisbon, Portugal, there are an average of 113 precipitation days annually, characterized by wet winters and dry summers typical of the Mediterranean climate.

The climate in San Francisco, USA, sees around 70 precipitation days annually, mostly during the winter months.

Osaka, Japan, experiences 198 precipitation days annually, with wetter summers compared to winter.

In Tokyo, Japan, the city sees around 181 precipitation days annually, with significant summer rains due to typhoon season.

Rain Facts From Around the Globe

Here are some amazing facts about rain and precipitation worldwide:

• Cherrapunji, India, records an average of 322 rainy days each year. Despite this, the wettest place is Mount Waialeale in Hawaii with 11500 mm annual rainfall.
• The fastest recorded raindrop fell at 18 meters per second during a thunderstorm in Brazil.
• The Atacama Desert in Chile is so dry that some weather stations have never recorded rainfall since their installation.
• The largest recorded raindrop measured 8.8 mm in diameter during a tropical storm on La Réunion Island.
• Some clouds can weigh up to 500,000 tons, that's equivalent to the weight of 100 elephants.

For more detailed information about rainfall patterns in Guam, visit our Rainfall & Precipitation page.