Gretna Weather in January
Gretna in January averages 17°C (63°F) during the day and 7°C (45°F) at night. This is part of the winter season, and quite a bit of rainfall is expected this month.
Rainfall in Gretna in January
Historically, January sees about 11 days of rain, with a monthly average of 115 mm (4.5 in). Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.
Temperature in Gretna in January
January in Gretna brings typical temperatures with highs around 17°C (63°F) and lows of 7°C (45°F). Winter occurs in January. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. With lows around 7°C (45°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep. This period usually represents the year's more moderate temperatures, but it's far from being chilly.
Sunshine in Gretna in January
The city usually sees around 152 hours of sunlight, indicating a moderately sunny period.
Wind Speed in Gretna in January
January sees wind speeds averaging 4 m/s (8 knots). You'll experience variable conditions with moderate winds that create small waves on water and keep branches moving. Conditions range from light winds to moderate breezes throughout the month.
Average water temperature in January
The water sits at 20°C (68°F), which is a nice temperature for swimming. Not too cold, not too warm — most visitors are happy to spend time in the water.For Gretna itself, November generally stands out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Gretna's climate page.
Gretna Temperature in January
Min Temperature
7°C (45°F)
Max Temperature
17°C (63°F)
Water Temperature
20°C (68°F) *
Chance of Rain
36%
Precipitation
115 mm (4.5 in)
Rainy days
11 days
Humidity
75% *
Windspeed
4 m/s (8 knots) *
Sunshine
152 hours *
Percentage Sunshine
47% *
Best Places in the United States of America in January
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in January →
perfect weather
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unpleasant
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What to Wear in Gretna in January
Pleasant temperatures in January mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes. The water temperature sits at about 20°C (68°F), making it perfect for swimming and water activities. Don't forget to pack your favorite swimwear and perhaps some snorkel gear. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Gretna in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Gretna's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Gretna climate overview or explore weather in the United States of America.
