Climate Insights for Mayagüez

The climate in Mayagüez is hot. The average annual temperature is 26°C and approximately 1101mm of precipitation falls per year. September is the wettest month, receiving around 199mm of rainfall. Mayagüez is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are March, February, January, when temperatures can drop to 22°C.

Mayagüez has relatively stable temperatures year-round, staying within a 8°C range. The warmest month is August, when average highs reach 30°C and the mean temperature sits around 27°C. March is the coolest month, with minimum temperatures around 22°C and an average of 24°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows.

Mayagüez is a moderately rainy area, receiving approximately 1101mm of precipitation annually, which averages out to around 92mm per month. The wettest month is September, averaging 199mm of rainfall. November and October also tend to see above-average precipitation. The driest month is January, with just 27mm. That's 171mm less than September, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Mayagüez is relatively calm, with an average annual wind speed of 3km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 3km/h, though still comfortable for most outdoor activities. The calmest conditions occur in October, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.

It is currently summer in Mayagüez, which began on June 21, 2026. Mayagüez is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 30°C, while the coldest stretch bottoms out in March near 22°C. Autumn is next, beginning on September 23, 2026 — 92 days from now.

The best time to visit Mayagüez is during January, February, March, April and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 25°C with modest rainfall averaging 50mm per month. By contrast, August can be uncomfortably hot with temperatures reaching 30°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Mayagüez based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.