Weather and climate in Surfside, FL
What the weather is like in Surfside
The warmest month in Surfside is August, with average highs of 86°F. The coolest is January, when nights average 67°F. About 52.2 in of rain and snow falls in a typical year, most in June and least in January.
Skies are clearest in April (49% average cloud cover) and cloudiest in June (64%). Combining cloud with the length of truly dark nights, February, November, December offer the most clear, dark hours for stargazing.
Clear, dark hours per night
Hours of full astronomical darkness in mid-month, multiplied by the average share of clear sky. A rough guide to how much good observing time a typical night offers.
Monthly averages
| Month | High | Low | Precipitation | Cloud cover | Humidity | Wind | Dark hours |
|---|---|---|---|---|---|---|---|
| January | 73°F | 67°F | 1.7 in | 58% | 75% | 11 mph | 10.6 h |
| February | 75°F | 69°F | 1.9 in | 53% | 75% | 10 mph | 10.1 h |
| March | 76°F | 71°F | 2.2 in | 52% | 73% | 11 mph | 9.4 h |
| April | 79°F | 74°F | 3.0 in | 49% | 73% | 10 mph | 8.6 h |
| May | 81°F | 77°F | 5.3 in | 50% | 75% | 10 mph | 7.7 h |
| June | 84°F | 81°F | 7.5 in | 64% | 78% | 8 mph | 7.2 h |
| July | 85°F | 82°F | 6.5 in | 60% | 76% | 7 mph | 7.5 h |
| August | 86°F | 83°F | 7.2 in | 59% | 77% | 7 mph | 8.2 h |
| September | 85°F | 81°F | 7.5 in | 63% | 78% | 8 mph | 9.1 h |
| October | 82°F | 79°F | 4.9 in | 56% | 76% | 10 mph | 9.9 h |
| November | 78°F | 74°F | 2.5 in | 55% | 75% | 11 mph | 10.5 h |
| December | 75°F | 71°F | 2.0 in | 57% | 77% | 10 mph | 10.7 h |
Climate averages: NASA POWER, 2001–2025, for the grid area around 26.00, -80.00 (about 50 km across). High and low temperatures are estimated from the monthly mean and the average daily range. Hills, coasts and cities can differ from the area average. Sources and methods.