Puerto Barrios climate
Puerto Barrios (Guatemala) has a tropical monsoon climate (Köppen Am). The average temperature over the year is 26 °C80 °F, and about 1,739 mm68 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Puerto Barrios climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin |
|---|---|---|---|---|
| Jan | 2781 | 2169 | 2475 | 1044.1 |
| Feb | 2984 | 2170 | 2577 | 783.1 |
| Mar | 3187 | 2271 | 2679 | 622.4 |
| Apr | 3391 | 2374 | 2883 | 512.0 |
| May | 3391 | 2476 | 2983 | 1275.0 |
| Jun | 3187 | 2577 | 2882 | 2148.4 |
| Jul | 3086 | 2576 | 2781 | 1887.4 |
| Aug | 3086 | 2577 | 2781 | 1957.7 |
| Sep | 3085 | 2577 | 2781 | 2279.0 |
| Oct | 2984 | 2475 | 2680 | 2058.1 |
| Nov | 2882 | 2272 | 2577 | 1746.8 |
| Dec | 2781 | 2170 | 2476 | 1134.4 |
| Year | 3391 | 2169 | 2680 | 1,73968 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 87% | 63% | 3.7 | 11:17 |
| Feb | 83% | 50% | 4.7 | 11:37 |
| Mar | 78% | 45% | 5.4 | 12:01 |
| Apr | 75% | 48% | 5.8 | 12:28 |
| May | 78% | 69% | 5.4 | 12:51 |
| Jun | 86% | 78% | 5.3 | 13:03 |
| Jul | 88% | 76% | 5.4 | 12:58 |
| Aug | 89% | 71% | 5.5 | 12:39 |
| Sep | 90% | 73% | 5.3 | 12:12 |
| Oct | 90% | 75% | 4.3 | 11:45 |
| Nov | 89% | 70% | 3.5 | 11:22 |
| Dec | 89% | 63% | 3.5 | 11:12 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Puerto Barrios is like
The warmest month is May, with an average high of 33 °C91 °F and a low of 24 °C76 °F. The coldest is January, when highs average 27 °C81 °F and lows 21 °C69 °F. Seasonal differences are small — just 4.8 °C8.6 °F between the warmest and the coolest month.
It is wet, with about 1,739 mm68 in of precipitation per year. The wettest three-month stretch is August–October, which brings 36% of the annual total. The wettest month is September (227 mm9.0 in), the driest is April (51 mm2.0 in).
Relative humidity ranges from 75% in April to 90% in September. The clearest skies (lowest average cloud amount, 45%) are typical of March. Average wind speed near the ground ranges from 2 km/h (1 mph) in September to 2 km/h (1 mph) in January. Daylight lasts from about 11.2 hours in December to 13.1 hours in June.
Best time to visit Puerto Barrios
Based on these averages, the most comfortable months for sightseeing and outdoor activities are February and March: average highs of 29 °C84 °F to 31 °C87 °F with 62 mm2.4 in to 78 mm3.1 in of precipitation per month.
The most challenging month is September, which is very wet (227 mm9.0 in) and humid (90% relative humidity).
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Puerto Barrios
- Wetter months (June–November) — highs 2882 to 31 °C87 °F, lows 2272 to 25 °C77 °F, about 201 mm7.9 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses and a good rain jacket or umbrella and quick-drying shoes.
- Drier months (December–May) — highs 2781 to 33 °C91 °F, lows 2169 to 24 °C76 °F, about 89 mm3.5 in of precipitation a month. Pack light summer clothes such as T-shirts, shorts or light dresses.
How Puerto Barrios compares
Compared with San Pedro Sula, about 66 km to the east, Puerto Barrios is on average 0.3 °C0.5 °F warmer and receives 12% more precipitation (1,739 mm68 in vs 1,547 mm61 in). The difference is largest in April (0.6 °C1.1 °F warmer).
Of the 8 places in Guatemala covered by World Climates, Puerto Barrios is the warmest by annual mean temperature and the 4th wettest by annual precipitation. See all of them on the Guatemala climate page.
Places in other countries with the most similar temperature and rainfall pattern: Choloma (Honduras, Am), San Pedro Sula (Honduras, Am) and El Progreso (Honduras, Am).
Nearby places
- San Pedro Sula 66 km · 26 °C79 °F · 1,547 mm61 in
- Choloma 70 km · 26 °C80 °F · 1,547 mm61 in
- Puerto Cortez 72 km · 27 °C80 °F · 1,783 mm70 in
- El Progreso 93 km · 27 °C80 °F · 1,624 mm64 in
- Chiquimula 145 km · 25 °C77 °F · 1,439 mm57 in
- Siguatepeque 150 km · 21 °C70 °F · 1,244 mm49 in
- Belmopan 171 km · 26 °C78 °F · 1,644 mm65 in
- Cobán 192 km · 19 °C67 °F · 1,469 mm58 in
Frequently asked questions
What is the warmest month in Puerto Barrios?
May is the warmest month in Puerto Barrios, with an average high of 33 °C (91 °F) and an average low of 24 °C (76 °F).
What is the coldest month in Puerto Barrios?
January is the coldest month, with an average high of 27 °C (81 °F) and an average low of 21 °C (69 °F).
When does it rain the most in Puerto Barrios?
September is the wettest month with about 227 mm (9.0 in) of precipitation; April is the driest with about 51 mm (2.0 in).
What is the best time to visit Puerto Barrios?
Judging by long-term averages, the most comfortable months are February and March.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 334 m, while Puerto Barrios lies at about 6 m. Temperatures on this page were therefore adjusted by +2.1 °C3.8 °F using the standard lapse rate of 6.5 °C per 1,000 m.