Watertown weather by month & the best time to visit
United States · small town · continental climate

The best time to visit Watertown is July — its sunniest month (Sunshine Score 75/100), with August and September close behind. Watertown averages about 1,866 hours of sunshine a year. Daytime highs around 24°C / 75°F and roughly 80 mm of rain in July.
When is the best time to visit Watertown?
For sunshine, the best time to visit Watertown is July, then August and September. The dullest month is January (0/100, 68 mm of rain). The full month-by-month picture is in the table below.
How sunny is Watertown?
Watertown gets a moderate 1,866 hours of sunshine a year. 75 Sunshine Score points separate July (75) from January (0), so the month you pick matters. It ranks #455 of 580 destinations in United States for annual sunshine, below the national median of 2,279 hours. The year's 941 mm of rain spreads fairly evenly across the months, with no pronounced dry season.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 0 | -1° / 30°F | -7° / 19°F | 68 mm | 1 |
| February | 0 | -1° / 30°F | -7° / 19°F | 61 mm | 1 |
| March | 0 | 3° / 37°F | -3° / 27°F | 59 mm | 3 |
| April | 6 | 9° / 48°F | 2° / 36°F | 75 mm | 4 |
| May | 44 | 15° / 59°F | 8° / 46°F | 79 mm | 6 |
| June | 74 | 20° / 68°F | 14° / 57°F | 87 mm | 7 |
| July | 75 | 24° / 75°F | 18° / 64°F | 80 mm | 7 |
| August | 75 | 24° / 75°F | 18° / 64°F | 79 mm | 6 |
| September | 75 | 21° / 70°F | 15° / 59°F | 78 mm | 5 |
| October | 34 | 14° / 57°F | 9° / 48°F | 112 mm | 3 |
| November | 0 | 8° / 46°F | 3° / 37°F | 77 mm | 1 |
| December | 0 | 2° / 36°F | -3° / 27°F | 86 mm | 1 |
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Watertown: questions and answers
What kind of destination is Watertown?
Watertown is a small town in United States with a continental climate.
How many hours of sunshine does Watertown get a year?
Watertown gets about 1,866 hours of sunshine a year, at its best around July.
When is the best time to visit Watertown?
The sunniest time to visit Watertown is July, when the Sunshine Score peaks at 75/100 (with August and September close behind). Expect daytime highs around 24°C / 75°F.
What is the least sunny month in Watertown?
January is the least sunny month in Watertown, scoring 0/100 with about 68 mm of rain.
How strong is the sun in Watertown?
The typical midday UV index in Watertown peaks around 7 (high) in June, easing to about 1 (low) in January. Month-by-month midday UV values are in the UV column of the table on this page.
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