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When is the best time to visit Boston?
In general the best time to visit Boston is probably July, when the weather is usually great. The hottest months are June, July, August, while the coldest months are January, February, December.
The best time to visit may differ depending on what you are looking for:
- The best time for a sunbathing holiday is June, July, August. Average maximum temperatures are up to +27°C in July and it has 3 sunny days on average.
- In general, it’s pleasant to walk and do outdoor activities during May - September.
- If you want to avoid wet weather, then your choice is August, September, October with the lowest chance of rain.
Average weather in Boston in different months
This is the average weather in Boston for each month based on historic data:
May, June, July, August, September, October usually has good weather. Average maximum temperature reaches +27°C during July.
In January, February, March, April, November, December the weather is average. Expect around 57 rainy days, and the precipitation amounts to approximately 104 mm in April.
Climate in Boston
Here is the detailed breakdown of the climate in Boston for each month:
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum Temperature | |||||||||||
| +22°C | +22°C | +29°C | +31°C | +35°C | +36°C | +38°C | +36°C | +35°C | +29°C | +25°C | +22°C |
| Average Maximum Temperature | |||||||||||
| +3°C | +4°C | +8°C | +13°C | +19°C | +24°C | +27°C | +26°C | +22°C | +17°C | +11°C | +5°C |
| Minimum Temperature | |||||||||||
| -24°C | -23°C | -15°C | -8°C | +1°C | +7°C | +10°C | +8°C | +3°C | -3°C | -13°C | -20°C |
| Avg. water temperature | |||||||||||
| +7°C | +5°C | +5°C | +8°C | +11°C | +17°C | +21°C | +21°C | +20°C | +18°C | +13°C | +10°C |
| Humidity, % | |||||||||||
| 64 | 62 | 62 | 63 | 67 | 69 | 69 | 70 | 72 | 70 | 66 | 65 |
| Rain, mm | |||||||||||
| 62 | 54 | 87 | 104 | 99 | 113 | 114 | 111 | 98 | 110 | 94 | 84 |
| Snow, mm | |||||||||||
| 31 | 33 | 21 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 21 |
| Average wind speed, m/s | |||||||||||
| 4 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 4 | 4 | 4 |
| Sunny Days | |||||||||||
| 5 | 5 | 5 | 4 | 4 | 3 | 3 | 5 | 7 | 7 | 5 | 4 |
| Cloud Days | |||||||||||
| 11 | 10 | 10 | 10 | 10 | 11 | 11 | 10 | 10 | 11 | 12 | 12 |
| Rainy Days | |||||||||||
| 6 | 5 | 10 | 15 | 16 | 14 | 14 | 14 | 12 | 13 | 12 | 9 |
| Snowy Days | |||||||||||
| 9 | 8 | 5 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 6 |
Average Temperature
Here are the average maximum and minimum temperatures in Boston during the whole year:
The hottest month in Boston is July with average maximum temperature going up to +27°C. The coldest month is January with the lowest temperatures of -5°C.
Water temperature
Here are the water temperatures in Boston during the whole year:
Boston achieves its warmest water temperature in August, where the average sea temperature goes up to +20°C. Coldest water temperature is in March with +3°C in average.
Humidity
The temperature feels different depending on humidity. Here is how humidity in Boston looks throughout the year, in %:
The most humid month in Boston is September with average humidity going up to 72%. The least humid month is February with an average humidity of 62%.
Rain
Amount of rainfall in mm. in Boston during the whole year based on historical data:
The sunniest and driest month is September with approximately 7 sunny days and a total precipitation of around 98 mm. The rainiest and wettest month is July with approximately 14 rainy days and 114 mm of total precipitation.
Snow
Amount of snow in mm. in Boston during the whole year based on historical data:
The snowiest month is February with approximately 8 snowy days.
FAQ
Frequently asked questions about the weather in Boston:
What is the hottest month in Boston?
The hottest month in Boston is July with average maximum temperature of +27°C.
What is the coldest month in Boston?
The coldest month in Boston is January with minimum temperatures of -5°C.
Is Boston worth visiting in winter?
Winter in Boston could be a good time to visit, as the weather is generally ok.
When does it rain the least in Boston?
if you're looking to visit Boston when it rains the least, you should plan your trip for July, June, August. During this time, rainfall is rare with the driest month being February with only 54 mm of rain.
Other cities in USA
Check out the weather for other cities in USA.
Monthly weather in Boston
Source of the data
For this page, we’ve looked at the typical weather in Boston, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.