The best time to visit Panama City
Any time is a good time to visit Panama City as it's constantly warm and comfortable. The best months to visit Panama City are between March and April. Although these are the most expensive and crowded months, the temperatures perfect and there's plenty to do. Just make sure to plan your trip a few months in advance if you plan to go during these months.
Between May and October is a close runner up in terms of the best months to visit Panama City. You'll catch considerably less tourist traffic and plane tickets and lodgings won't be as expensive during this time. Additionally, the weather is still warm and comfortable, but as the season goes on the rains begin to get more intense. Between July and August the most rain comes down, so pack an umbrella!
Between November and February is considered the off season, but it's still a good time of the year to go to Panama City. Temperatures dip a bit to between 40-60 degrees Fahrenheit (4.44-15.6 degrees Celsius) but they're still comfortable. Additionally, there's extremely few crowds and both lodging and plane tickets will be considerably more affordable.