Sea Isle Weather & Climate: Best Time to Visit

Average temperatures, rainfall, sunshine and the best time to visit Sea Isle.

Climate overview of Sea Isle

The climate in Sea Isle, United States of America, is marked by large temperature swings across the seasons, ranging from 33°C (91°F) in August to 16°C (61°F) in January.

Rainfall is high, totalling around 1198 mm (47 in) per year. September is the wettest month and February the driest. The most sunshine falls in July, with an average of 10.4 hours of daily sunshine.

Sea Isle Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Sea Isle — and find the best time to visit.

Monthly Temperature in Sea Isle

In Sea Isle, temperatures differ significantly between summer and winter months. Average maximum daytime temperatures range from a very warm 33°C (91°F) in August, the warmest time of the year, to a moderate 16°C (61°F) during cooler months like January.

At night, you can expect temperatures ranging from 27°C (81°F) in August to around 9°C (48°F) during January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Rainfall in Sea Isle

Sea Isle experiences significant rainfall throughout the year, averaging 1198 mm (47 in) of precipitation annually. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, September it receives heavy rainfall, averaging 174 mm (6.9 in) of precipitation, recorded across 13 rainy days. In contrast, the driest month February brings less rainfall, with 55 mm (2.2 in) over 8 rainy days. For more details, please visit our Sea Isle Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

Sunshine Hours in Sea Isle

Seasonal changes in sunshine hours are quite dramatic in Sea Isle. While July receives considerable daily sunshine with up to 10.4 hours, January marks the darkest time of the year, where sunshine is scarce with only 4.9 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Galveston, the United States of America (30 KM, 18 Miles).

Daily hours of sunshine

Data from: Galveston, the United States of America (30 KM, 18 Miles).

Best Time to Visit Sea Isle

The best time to visit Sea Isle is during March, April, May, October and November, when the weather provides comfortable temperatures between 21°C (70°F) and 28°C (82°F). With rainfall of 81 mm (3.2 in) to 118 mm (4.6 in), you can expect pleasant weather during your visit in these months.

Be prepared for heavier rainfall during September, the wettest period of the year.

Need help choosing your next travel destination? We offer a specialized tool that matches you with locations based on your weather preferences. Explore destinations that suit your climate preferences.

Frequently asked questions about the climate in Sea Isle

What is the best time to visit Sea Isle?

March, April, May and November typically offer the most optimal weather in Sea Isle. In contrast, August tends to have less optimal conditions.

What temperatures can I expect in Sea Isle?

Daytime highs range from 16°C (61°F) in January to 33°C (91°F) in August. Nighttime lows range from 9°C (48°F) to 27°C (81°F). Temperatures vary considerably through the year.

How much rain does Sea Isle get?

Annual rainfall is around 1198 mm (47 in). September is the wettest month with 174 mm (6.9 in), while February is the driest with 55 mm (2.2 in).

How sunny is Sea Isle?

Sea Isle receives around 2,716 hours of sunshine per year. July is the sunniest month with 311 hours, while January is the cloudiest with just 147 hours. Overall, Sea Isle enjoys abundant sunshine.

Sea Isle 3-Day Forecast

Sea Isle 3-Day Forecast

Sea Isle on the map

Sea Isle is highlighted — select any city to see its climate.

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