Arima Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Arima, Trinidad, Trinidad & Tobago. 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.

Arima is known for its substantial rainfall, with annual precipitation reaching 1393 mm (55 in).

Monthly Precipitation Levels

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

Arima can be quite wet during November, receiving approximately 179 mm (7 in) of precipitation over 25 rainy days.

In contrast March, experiences much drier conditions, with 42 mm (1.7 in) of rainfall, spread across 10 rainy days.

November, the wettest month, has a maximum daytime temperature of 30°C (86°F). The city receives 196 hours of sunshine in this period. During the driest month March you can expect a temperature of 30°C (86°F). For more detailed insights into the city's temperatures, visit our Arima Temperature page.

Arima's average annual precipitation is 1393 mm (55 in). Let's compare this to some popular worldwide tourist destinations:

The climate in San Francisco, USA, is influenced by coastal weather, with 469 mm (18 in) of rainfall mostly during the winter months.

Osaka, Japan, experiences 1507 mm (59 in) of rainfall annually, spread across the year with wetter summers.

Melbourne, Australia, has 690 mm (27 in) of rainfall annually, spread fairly evenly throughout the year.

Bangkok, Thailand, experiences a tropical monsoon climate with 1668 mm (66 in) of annual rainfall, with the heaviest precipitation occurring during September and October.

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.

The proximity of a location to a large body of water can significantly affect its rainfall patterns:

• Ocean Influence: Coastal regions typically receive more rainfall due to the presence of moisture-laden winds from the ocean. These regions tend to have more humid climates and experience more frequent precipitation, especially in winter.
• Continental Climates: Areas further from the sea, such as inland or continental regions, experience less frequent rainfall and more extreme seasonal variations in precipitation.

• 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 Arima's weather, including sunshine hours, humidity levels, and temperature data, visit our Arima Climate page.