Monthly climate guide

Gustavia weather in January

Expect warm weather in Gustavia in January: afternoons reach about 26°C (80°F), while nights drop to around 26°C (78°F). Around 16 mm of rain falls over the month (very dry), and skies are a mix of sun and cloud. Daytime highs are about the same as December and about the same as February.

What stands out in January

Days and nights are close, only about 1°C apart.
It's humid — around 76% — so the heat feels heavier.
It's one of the drier months, with about 69% less rain than Gustavia's average.
January sits in Gustavia's drier season — usually a comfortable time to visit.

Avg high

26°C

80°F

Avg low

26°C

78°F

Rainfall

16 mm

very dry

Humidity

76%

relative

Sky

36%

cloud · a mix of sun and cloud

Live Gustavia forecast Where else to go in January

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Gustavia weather by month

Low → high °C Rain (mm)

Show the monthly averages as a table

Average monthly climate in Gustavia
Month	Avg high	Avg low	Rain	Humidity	Cloud cover
January	26°C / 80°F	26°C / 78°F	16 mm	76%	36%
February	26°C / 79°F	25°C / 77°F	12 mm	76%	31%
March	26°C / 79°F	25°C / 77°F	16 mm	75%	38%
April	27°C / 80°F	26°C / 78°F	27 mm	76%	43%
May	28°C / 82°F	27°C / 80°F	71 mm	79%	59%
June	28°C / 83°F	27°C / 81°F	45 mm	79%	56%
July	29°C / 83°F	28°C / 82°F	56 mm	79%	50%
August	29°C / 84°F	28°C / 82°F	74 mm	79%	46%
September	29°C / 84°F	28°C / 82°F	90 mm	79%	54%
October	29°C / 84°F	28°C / 82°F	91 mm	78%	48%
November	28°C / 83°F	27°C / 81°F	84 mm	78%	47%
December	27°C / 81°F	26°C / 79°F	39 mm	77%	39%

What to pack for January

T-shirts plus a light layer for the evening
Comfortable trainers or sandals for long walks
Sunglasses
Quick-dry fabrics — it feels stickier than the temperature suggests

Full season-by-season packing guide →

Is January a good time to visit Gustavia?

Compare the months in the chart above to find your ideal window.

Best time to visit Gustavia →

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Gustavia weather in January. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/saint-barthelemy/gustavia/january

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Gustavia in January: quick answers

Is January a good time to visit Gustavia?

Yes. January is one of the best months for Gustavia, with highs around 26°C and about 16 mm of rain.

How warm is Gustavia in January?

Average highs are about 26°C (80°F) and average lows about 26°C (78°F), based on 10 years of daily data.

Does it rain a lot in Gustavia in January?

Gustavia typically gets around 16 mm of rain in January — very dry.

Figures are long-term averages for the area around Gustavia (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.