Index

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• Introduction
• North-west - Changuinola
• North side - Colón
• South side - Panama City
• The south-west - Santiago de Veraguas
• Hills and mountains
• Hurricanes
• Best Time
• What to pack

Introduction

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In Panama, a Central American country located just north of the equator, the climate is tropical, hot all year round.
The main difference is found in the rains, which are determined by the seasonal shift of the sun, which in turn determines the prevailing currents.
From May to November the south-west currents predominate, which bring abundant rainfall on the southern slope exposed to the Pacific Ocean; however, it rains on the north side as well, so this is the rainy season.
In contrast, from December to April the northeastern trade winds prevail, which bring abundant rainfall on the north side on the Caribbean Sea, especially in the first part (December-January), that is to say when the sea is warmer, while on the south side, beyond the mountain ranges that are stretched in the interior of the country as a backbone, this is the dry season.
The rains occur mostly in the form of heavy downpour or thunderstorm (called aguaceros), usually in the afternoon or evening, but they can continue even in the early hours of the night.
However, there are some variations from one year to the next, which make the weather quite unpredictable, especially on the north side, while on the southern side the seasons are more defined.
The temperatures vary little throughout the year; however, the coolest months, or rather the least hot, are usually October and November, at the end of the rainy season, although during this period the humidity makes the heat unpleasant. The hottest months are usually March and April, before the rainy season.

North-west

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In the north-west, the province of Bocas del Toro has an equatorial climate, ie with no dry season. Near the border with Costa Rica, the northern side of the mountain range called Cordillera de Talamanca, where the Amistad International Park is found, is occupied by a cloud forest.
In this zone (see Changuinola, Bocas del Toro Archipelago), where about 2,500 millimeters (98 inches) of rain fall per year, there are two periods when the rains have a relative decline: February-March and (a little less) September-October, while the wettest months are July, November and December.

Changuinola

Here is the average precipitation in Changuinola.

Here are the average temperatures of Changuinola. As you can see, the temperatures are not too high, even though the air is humid.

In this zone, the period of the northeastern trade winds, though rainy, is quite sunny, especially from February to April, when the rains become a little less frequent.

Other areas of Panama have an equatorial climate: the northern slopes of the highest mountains, and, in the south-east, the inland area of the province the Darién Province, on the border with Colombia, where an impenetrable rainforest dominates, so much so that even the Pan-American Highway, which otherwise would connect the whole American continent from Alaska to Patagonia, is interrupted south of Yaviza (the interruption is called Darién Gap). In this area, more than 3,000 mm (118 in) of rain fall per year, the only time when precipitation goes down to around 150 mm (6 in) per month is January to March.

North side

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In the rest of the coast overlooking the Caribbean Sea, although the rains are more abundant than the southern side, there is a decrease in rainfall from January to April, more pronounced than in the northwest.

Colón

In Colón, near the Caribbean entrance to the Panama Canal, rainfall amounts to 3,300 mm (130 in) per year. In the wettest month, November, the rains become monsoon-like, reaching as high as 550 mm (21.5 in) in a month.
Here is the average precipitation in Colón.

North-east of Colón we find the San Blas archipelago, made up of coral islands inhabited by the Kuna Indians.

South side

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The southern side, being leeward from the trade winds, is not as rainy as the northern side, in addition it is a bit hotter. On the south coast (see Panama City), the monthly average temperature ranges from 26 °C (79 °F) in October and November to 28 °C (82 °F) in April, while along the north coast, as previously mentioned, the average ranges from 25 °C (77 °F) in November and December to 27 °C (81 °F) in April and May.

Panama City

In Panama City, the capital, located on the Pacific side, about 1,730 mm (68 in) of rain fall, almost all in the rainy season, from May to mid-December. This period is also characterized by a hot and muggy weather with poor sunshine.
Here is the average precipitation.

In return, in the period from January to April, the sun shines and it almost never rains, but it's hot, with lows around 23/24 °C (73/75 °F) and highs around 32 °C (90 °F).
Here are the average temperatures of Panama City.

The amount of sunshine in Panama City is not great because some cloudiness can always form, however, it's better at the height of the dry season, from February to April. On the other hand, even in the rainy season, the sun makes its appearance on average for a few hours a day, at least in the plains and along the coasts. The cloudiest areas are the east, towards the border with Colombia, and the mountainous inland areas. Here are the sunshine hours per day in Panama City.

The sea in Panama is warm enough for swimming all year round: the water temperature ranges from 27 °C to 29 °C (81 to 84 °F). And this applies to both coasts.

The south-west

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Across the southern plains to the west of the Gulf of Panana (see David, Santiago), and in the Azuero Peninsula, during the dry season the rainfall drops below 100 mm (4 in) already in December; the sun shines along the coast and the heat is intense in the interior, with highs around 35 °C (95 °F).

Santiago de Veraguas

Here are the average temperatures in Santiago de Veraguas.

South of the coast, we find the pristine island of Coiba, which is also a national park, and a UNESCO World Heritage Site.
In the southern provinces of Herrera, Coclé and Los Santos, west of the Gulf of Panama (see Anton, Chitré, in the small area circled in light red), precipitation drops to around 1,500 millimeters (60 inches) per year. In this region, the vegetation is less dense, in fact there are also grasslands and shrubs. In the inland region, there is even a desert, in the Sarigua National Park, actually formed as a result of deforestation made by settlers in the last century, to make room for pastures, rather than to the climate.

Hills and mountains

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To find some cool weather, you have to climb above 1,000 meters (3,300 feet), in the so-called tierras templadas ("temperate lands"), which have a milder climate. In Boquete, 1,200 meters (3,900 feet) above sea level, on the slopes of Barú volcano, which is the highest peak in Panama with its 3,475 meters (11,401 feet), the average temperature fluctuates between 20 °C and 21 °C (68 and 70 °F) throughout the year.
Here are the average temperatures.

In Boquete, 2.900 mm (114 in) of rain fall per year; the rains exceed 300 mm (12 in) from May to November, while they drop below 100 mm (4 in) per month from January to March.
Above 2,000 meters (6,500 feet), in the tierras frías ("cold lands"), nights can be cold, especially in the period from December to March. Above 3,000 meters (10,000 ft), it can get cold even during the day.

Hurricanes

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Panama is almost always spared from hurricanes, which pass through the Caribbean Sea and Central America at a higher latitude. The only hurricane to hit Panama in historical times was Martha, which followed an abnormal trajectory (from north to south) and hit the coast in Mosquito Bay, in November 1969. More recently, two hurricanes, Otto in November 2016 and Nate in November 2017, have affected Panama, even though they passed over the Caribbean Sea more to the north. However, the hurricane season runs from June to November, even though at so low a latitude they are almost always formed at the end of the period, that is, in October and November.

Best Time

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The best time to visit Panama as a whole runs from February to April, and in particular the months of February and March: it's hot almost everywhere, the sun shines and there is little rain, except on the north-west of the Caribbean coast and in the interior of the Darién province, where rainfall is quite frequent even during this period.
On the southern side, overlooking the Pacific Ocean, you can go from December (or better yet January) to April.

What to pack

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For plains and coasts: bring lightweight clothes, a light sweatshirt for the evening and for air conditioning. In the rainy season (from May to mid-December in Panama City, and throughout the year in areas with an equatorial climate), you can add a light raincoat or umbrella. When going to the reef, you can bring snorkeling equipment, including water shoes or rubber-soled shoes.
For the tierras templadas: all year round, bring light clothing, a sweatshirt or sweater for the evening; a raincoat or umbrella in the rainy season. In the dry season, sunscreen and a sun hat.
For the tierras frías: throughout the year, bring clothes for spring and autumn, a T-shirt for the day, a sweater or sweatshirt and jacket for the evening, a raincoat or umbrella in the rainy season.
For high mountains: bring warm clothes, a jacket, hiking boots.

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