Changwat Chiang Mai Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Changwat Chiang Mai, Thailand. This average is based on long-term data collected between 1990 and 2020. Let's now guide you through the details for a complete overview.

Changwat Chiang Mai is known for its substantial rainfall, with annual precipitation reaching 1178 mm (46 in). While the overall climate is wet, there are notable seasonal patterns that create interesting contrasts, as demonstrated in our graph below.

Monthly Precipitation Levels

The average number of days each month with precipitation (> 0.2 mm (0.01 in))

Changwat Chiang Mai can be quite wet during August, receiving approximately 256 mm (10 in) of precipitation over 20 rainy days.

In contrast February, experiences much drier conditions, with 4.5 mm (0.2 in) of rainfall, spread across a single rainy day.

August, the wettest month, has a maximum daytime temperature of 32°C (90°F). The city receives 116 hours of sunshine in this period. During the driest month February you can expect a temperature of 34°C (93°F). For more detailed insights into the city's temperatures, visit our Changwat Chiang Mai Temperature page.

Changwat Chiang Mai's average annual precipitation is 1178 mm (46 in). Let's compare this to some popular worldwide tourist destinations:

In Lisbon, Portugal, the average annual precipitation is 774 mm (30 in), characterized by wet winters and dry summers typical of the Mediterranean climate.

Meanwhile, Buenos Aires, Argentina, enjoys a humid subtropical climate with 1000 mm (39 in) of annual rainfall, mostly in the summer.

In Brisbane, Australia, the annual precipitation is 979 mm (39 in), making it wetter than Sydney.

Singapore, situated near the equator, gets 2581 mm (102 in) of rainfall annually, with no distinct dry season and consistent monthly precipitation.

Precipitation amounts are measured using specific gauges installed at weather stations, collecting both rain and snow and any other type of precipitation. Rainfall is measured directly in millimeters, while that from snow and ice is obtained by melting it. Automated systems often incorporate heaters to make this easier.

Information from these stations is transmitted via Wi-Fi, satellite, GPS, or telephone connections to central monitoring networks. This information is immediately updated and integrated into weather models and forecasts.

Tropical Rainforests: In tropical regions, rainfall is generally abundant year-round. Areas near the equator, like the Amazon rainforest, can receive up to 3000 mm (118 in) of rain annually.

Desert Regions: Deserts such as the Sahara and Arabian deserts typically see less than 250 mm (9.8 in) of rainfall annually. Rainfall tends to be infrequent, but when it does occur, it is often intense.

Temperate Zones: In temperate regions, precipitation tends to be more evenly distributed, though areas closer to the ocean may see more rain in the winter months, and areas further inland experience drier summers.

Polar Regions: Precipitation in polar regions, like Antarctica, is extremely low, often falling as snow. Average annual precipitation in Antarctica is less than 200 mm (7.9 in), with some areas receiving as little as 50 mm (2 in) annually.

• The U.S. has a significant number of thunderstorms every year, with over 14.6 million taking place across the world annually.
• Approximately 70% of lightning bolts strike land rather than oceans.
• A storm named John was the longest-lasting Pacific tropical storm, continuing for 31 days. As it crossed the dateline twice, it changed status from a hurricane to a typhoon and back to a hurricane.

For more detailed information about Changwat Chiang Mai's weather, including sunshine hours, humidity levels, and temperature data, visit our Changwat Chiang Mai Climate page.