Boston Weather in April

April in Boston brings moderate temperatures, with daytime highs of 14°C (57°F) and nights around 5°C (41°F). Quite a bit of rainfall is expected, around 91 mm (3.6 in), so pack an umbrella.

Rainfall in Boston in April

Typically, about 11 days will experience rainfall, with an average of 91 mm (3.6 in) for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in Boston in April

If you're visiting Boston in April, expect highs of 14°C (57°F) and overnight lows around 5°C (41°F). This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With overnight lows of 5°C (41°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Boston in April

Expect sunny days throughout the month, with an estimated 229 hours of sunshine. Despite the cool temperatures, the sunny skies make it a pleasant time to visit Boston.

Wind Speed in Boston in April

Average wind conditions reach 6 m/s (12 knots) in April. This creates notably windy weather that is clearly felt and can influence daily activities. Keep in mind this is an average. Some days are less intense, while others can be quite gusty.

Average water temperature in April

The water temperature is only 6°C (43°F) this month — cold enough that most people will want to stay out. Hardy swimmers may manage a quick dip, but it won't be comfortable.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. August and September typically offer the best weather for Boston.

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For a detailed overview over the year and the best time to visit the United States of America, check out our Boston's climate page.

Boston Temperature in April

Min Temperature 5°C (41°F)  

Max Temperature 14°C (57°F)  

Water Temperature 6°C (43°F)  

Chance of Rain 37%  

Precipitation 91 mm (3.6 in)  

Rainy days 11 days  

Humidity 63%  

Windspeed 6 m/s (12 knots)  

Sunshine 229 hours  

Percentage Sunshine 57%  

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Boston typically rise from around 11°C (52°F) at the start of April to approximately 15°C (59°F) by the end. Nights are cold, with lows typically ranging from 3°C (37°F) to 8°C (46°F).

Average temperatures in April

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Daily Historical Precipitation

50-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in April

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Historical weather for Boston in April

Browse day-by-day weather records for Boston spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Historical weather Temperatures Precipitation

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‹ January February March April May June July August September October November December ›

Boston historical weather extremes in April

Based on 50 years of weather observations (1976-2026), these are the most extreme conditions recorded in Boston.

• Boston recorded its highest April temperature of 34°C (93°F) on April 18, 1976.
• Boston registered its coldest April night on April 7, 1982, with temperatures dropping to -9°C (16°F).

What to Wear in Boston in April

The weather can swing between comfortable and chilly in April, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Expect heavy rainfall, so bring good rain protection and waterproof bags. Expect water temperatures of around 6°C (43°F), which is definitely too cold for comfortable swimming. Your luggage space is better used for other items. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Boston in April

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

4/10

Cycling

6/10

Walking

6/10

Camping

4/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Boston's climate page.

More climate data for Boston

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Boston climate overview or explore weather in the United States of America.