Climate for Station: Guantanamo Bay Nas, Guantanamo, Cuba

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Phillips Park

Guantanamo, Cuba

2026-02-28 21:28

26.1°C

Feels 30.3°C

H: 31.7°C / L: 21.5°C

Precip: 0mm | Wind: 4.3 kph

▲ 2.0°C vs historical high

Partly cloudy

2026-03-01

H: 31.5°C

L: 21°C

Rain: 0%

Rainfall: 0.03mm

Wind: 18kph

▲ 1.7°C

2026-03-02

H: 28.5°C

L: 20.8°C

Rain: 0%

Rainfall: 0mm

Wind: 18.7kph

▼ 1.2°C

2026-03-03

H: 31.8°C

L: 23.7°C

Rain: 0%

Rainfall: 0.09mm

Wind: 33.5kph

▲ 2.1°C

2026-03-04

H: 29°C

L: 23°C

Rain: 83%

Rainfall: 0.4mm

Wind: 37.4kph

▼ 0.9°C

2026-03-05

H: 29.1°C

L: 23.2°C

Rain: 88%

Rainfall: 0.16mm

Wind: 34.9kph

▼ 0.7°C

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Climate Analysis & Overview

Guantanamo Bay Nas, located in Caimanera, Cuba, is experiencing nuanced climate dynamics. While all-time temperature trends show a slight warming, recent trends indicate a divergence with cooling highs and warming lows. Precipitation patterns have become more evenly distributed, suggesting a shift in rainfall dynamics.

Tropical Climate Dynamics

Guantanamo Bay Nas is situated within a tropical savanna climate zone, according to the Köppen classification. This climate is characterised by distinct wet and dry seasons, influenced by the Caribbean Sea's proximity. The station's all-time temperature trends reveal a gradual warming, with highs increasing by 0.11°C (0.20°F) and lows by 0.07°C (0.13°F). However, the past decade presents a more complex picture: highs have cooled by 0.14°C (0.25°F), while lows have warmed by 0.33°C (0.59°F). This divergence suggests potential shifts in daily temperature ranges, possibly influenced by regional weather patterns and oceanic currents.

Precipitation Patterns and Distribution

The Precipitation Concentration Index (PCI) provides insights into rainfall distribution. A decrease from a baseline of 16.13 to a current value of 14.02 indicates that precipitation has become more evenly distributed over the year. This shift suggests a reduction in the intensity of individual rainfall events, which could mitigate flood risks and benefit agriculture. The PCI value, now below 20, reflects a moderate concentration, aligning with Cuba's broader climate resilience goals, which include improving water management and reducing the impact of extreme weather events.

Temperature Extremes

Guantanamo Bay Nas has recorded a maximum temperature of 38.9°C (102.0°F) and a minimum of 13.9°C (57.0°F). These extremes highlight the station's capacity for significant thermal variation, despite its tropical location. Such temperature records are crucial for understanding the potential impacts of heatwaves and cold snaps on local ecosystems and infrastructure.

Regional Climate Considerations

The station's climate data should be viewed within the context of Cuba's regional climate initiatives, which aim to enhance resilience against climate change. Recent weather events, including hurricanes and tropical storms, have underscored the importance of adaptive strategies. The observed cooling of highs over the past decade may be linked to increased cloud cover or changes in sea surface temperatures, both of which are areas of active research.

Geographical Influences

The geographical setting of Guantanamo Bay, bordered by mountains and the sea, plays a pivotal role in its climate profile. The mountains can alter wind patterns and precipitation, while the sea moderates temperature extremes. This interplay of geographical features contributes to the unique climate dynamics observed at the station, offering valuable insights for climatologists and policymakers alike.

Station Statistics

10-Year Trend

High: -0.17 °C/decade

Low: +0.27 °C/decade

Rain: +1.61 mm/decade

25-Year Trend

High: +0.87 °C/decade

Low: +0.13 °C/decade

Rain: +0.28 mm/decade

50-Year Trend

High: +0.01 °C/decade

Low: +0.05 °C/decade

Rain: +0.16 mm/decade

All-Time Trend

High: +0.12 °C/decade

Low: +0.08 °C/decade

Rain: +0.04 mm/decade

Percentage Above-Average Days

Last 12 Months: 51.2%

This Year: 26.4%

Precipitation Concentration Index (PCI) ℹ️

Last 12 Months: 16.4

Historical Average: 17.4

Percentile Rank of Last 12 Months ℹ️

High: 73^rd percentile

Low: 95^th percentile

Rain: 88^th percentile

Change in Variance ℹ️

High: -34.1%

Low: -7.0%

Intraday: -30.0%

Data Coverage

97.8%

First Year of Data

1945

Station Location

Historical Weather Records

	Max High	Avg High	Min High	Max Avg	Avg Avg	Min Avg	Max Low	Avg Low	Min Low	Max Precipitation	Avg Precipitation	Avg Snow
Record	38.9 °C	—	21.1 °C	32.1 °C	—	18.1 °C	28.3 °C	—	13.9 °C	255.0 mm	—	—
January	36.0 °C	29.5 °C	21.7 °C	28.8 °C	24.5 °C	18.8 °C	25.6 °C	20.3 °C	13.9 °C	223.8 mm	0.7 mm	0.0 mm
February	35.0 °C	29.6 °C	21.1 °C	28.2 °C	24.8 °C	18.1 °C	26.7 °C	20.3 °C	13.9 °C	56.6 mm	0.7 mm	0.0 mm
March	35.0 °C	30.0 °C	21.7 °C	28.7 °C	25.4 °C	20.7 °C	27.2 °C	21.1 °C	15.0 °C	61.7 mm	0.9 mm	0.0 mm
April	35.0 °C	30.6 °C	23.3 °C	29.4 °C	26.3 °C	21.9 °C	27.2 °C	22.1 °C	17.2 °C	73.9 mm	1.0 mm	0.0 mm
May	37.2 °C	31.2 °C	24.4 °C	30.1 °C	27.1 °C	22.4 °C	27.2 °C	23.3 °C	19.0 °C	183.4 mm	2.7 mm	0.0 mm
June	37.2 °C	32.1 °C	23.9 °C	31.3 °C	28.1 °C	23.7 °C	27.8 °C	24.3 °C	20.6 °C	255.0 mm	1.9 mm	0.0 mm
July	37.8 °C	33.0 °C	28.1 °C	32.1 °C	28.7 °C	25.0 °C	27.8 °C	24.6 °C	21.1 °C	111.4 mm	1.0 mm	0.0 mm
August	38.9 °C	33.1 °C	26.7 °C	31.4 °C	28.7 °C	24.7 °C	28.3 °C	24.6 °C	20.6 °C	69.9 mm	1.7 mm	0.0 mm
September	37.8 °C	32.6 °C	25.6 °C	31.4 °C	28.2 °C	23.4 °C	28.3 °C	24.4 °C	21.1 °C	132.6 mm	2.7 mm	0.0 mm
October	38.3 °C	31.8 °C	25.6 °C	31.0 °C	27.4 °C	23.4 °C	27.8 °C	23.8 °C	20.0 °C	193.0 mm	4.4 mm	0.0 mm
November	37.2 °C	31.1 °C	24.4 °C	29.7 °C	26.3 °C	20.5 °C	28.0 °C	22.6 °C	16.1 °C	78.2 mm	1.6 mm	0.0 mm
December	35.0 °C	30.1 °C	23.9 °C	29.5 °C	25.1 °C	19.5 °C	26.1 °C	21.1 °C	13.9 °C	79.0 mm	0.8 mm	0.0 mm