Destination guide
Miami weather by month
March, February and April offer Miami's best balance of warmth, sunshine and fewer rainy days. March is a particularly useful starting point, with daytime temperatures of 25°C, around 7 rainy days and sea temperatures of 24°C. Winter suits travellers who prefer milder conditions, while summer brings hotter days and warmer water at the cost of more frequent rain. Autumn gradually becomes less wet, making November a good alternative if you want warmth without the summer rainfall pattern.
- Hottest month
- 30.1°CJuly
- Coolest month
- 23.2°CJanuary
- Warmest sea
- 29.9°CAugust
- Flight from London
- 9 h 42 minLong-haul (7 h+) · estimated
Miami, month by month
A little perspective
Miami through the year
Every month at a glance; "best" marks our three top months on warmth, dryness and sunshine.
| Month | Day | Night | Sea | Sun/day | Rain mm | Rainy days | Days 25°C+ |
|---|---|---|---|---|---|---|---|
| January | 23.2°C | 18.0°C | 23.9°C | 5.3 | 52 | 8 | 32% |
| Februarybest | 24.0°C | 18.8°C | 23.7°C | 6.2 | 41 | 7 | 43% |
| Marchbest | 25.1°C | 19.7°C | 24.2°C | 6.6 | 49 | 7 | 59% |
| Aprilbest | 26.8°C | 21.6°C | 25.4°C | 7.2 | 56 | 8 | 84% |
| May | 28.2°C | 23.4°C | 26.8°C | 7.3 | 99 | 12 | 99% |
| June | 29.2°C | 25.2°C | 28.5°C | 4.8 | 158 | 20 | 100% |
| July | 30.1°C | 25.9°C | 29.5°C | 5.2 | 112 | 20 | 100% |
| August | 30.1°C | 26.0°C | 29.9°C | 4.8 | 142 | 22 | 100% |
| September | 29.3°C | 25.5°C | 29.3°C | 4.1 | 158 | 22 | 100% |
| October | 27.9°C | 24.0°C | 28.0°C | 5.2 | 118 | 15 | 97% |
| November | 25.8°C | 21.5°C | 26.3°C | 5.5 | 56 | 9 | 75% |
| December | 24.2°C | 19.6°C | 24.9°C | 5.3 | 41 | 8 | 49% |
Day = average daytime high, night = average night-time low, 1991-2020.Sun is hours per day; rainy days count 1 mm or more.
Day, night and sea
Monthly average temperatures, 1991-2020
- Day
- Night
- Sea
Best months here
On warmth, low rainfall and sunshine, start with these.
When to go to Miami
For beach weather, look at months where the daytime average clears 25°C and rainy days stay low: March, April, May, June, July, August, September, October, November. June is the wettest month (158 mm, about 20 rainy days) and February the driest (41 mm). The sea is warmest in August at 29.9°C and coolest in February at 23.7°C.
Getting there
A direct flight from London Gatwick to Miami International Airport (MIA, 10 km from Miami) takes roughly 9 h 42 min - long-haul (7 h+) by UK standards. Time-zone: America/New York.
Records and extremes, 1991-2020
The hottest day recorded in Miami between 1991 and 2020 reached 35.4°C on 10 April 2020; the coldest fell to 3.3°C on 10 January 2010. In July one day in ten tops 31.4°C and about 56% of days pass 30°C; in January one night in ten drops to 12.3°C or below. The wettest single month of the period was May 2018 with 442 mm, against a May average of 99 mm.
Sunrise, sunset and daylight in Miami
Local time on the 15th of each month; daylight-saving rules as of 2020.
| Month (15th) | Sunrise | Sunset | Daylight | Sunshine/day |
|---|---|---|---|---|
| January | 07:09 | 17:51 | 10.7 h | 5.3 h |
| February | 06:57 | 18:13 | 11.3 h | 6.2 h |
| March | 07:30 | 19:29 | 12.0 h | 6.6 h |
| April | 06:58 | 19:44 | 12.8 h | 7.2 h |
| May | 06:35 | 19:59 | 13.4 h | 7.3 h |
| June | 06:29 | 20:13 | 13.7 h | 4.8 h |
| July | 06:39 | 20:15 | 13.6 h | 5.2 h |
| August | 06:54 | 19:57 | 13.0 h | 4.8 h |
| September | 07:07 | 19:25 | 12.3 h | 4.1 h |
| October | 07:20 | 18:54 | 11.6 h | 5.2 h |
| November | 06:39 | 17:32 | 10.9 h | 5.5 h |
| December | 07:00 | 17:32 | 10.5 h | 5.3 h |
Winter: milder days and relatively little rain
December to February suits travellers who want outdoor time without the strongest heat. January is the coolest month, with days around 23°C and nights around 18°C, so pack a light layer rather than relying entirely on summer clothes. December is slightly warmer, including in the sea, while February brings more sunshine and fewer rainy days than January. February is the strongest winter choice if your priority is a balance of comfortable daytime warmth and relatively little rain. Sea temperatures of 24°C in January and February make swimming an option, though your comfort will depend on how warm you like the water. January's catch is its milder weather and shorter sunshine average, rather than frequent rain.
Spring: the best balance before rain becomes more frequent
March and April are the clearest choices for a trip built around being outdoors. March averages 25°C by day, rising to 27°C in April, and both offer 7 hours of sunshine. Rain remains relatively infrequent, so there is less need to organise your holiday around wet-weather alternatives than in summer. April also has slightly warmer sea temperatures and evenings, making it a good choice if March sounds a little mild. May shifts the balance: days reach 28°C and the sea reaches 27°C, but rainy days rise to 12. Choose May for warmer swimming rather than the best chance of keeping outdoor plans unchanged, and leave room for breaks from the midday heat.
Summer and autumn: warmer water, more flexible plans
June to September suits travellers who put warm seas ahead of fewer rainy days. July and August reach around 30°C by day, with sea temperatures also at 30°C, but warm nights offer little cooling. Pack light clothing and rain protection, and keep outdoor plans flexible: August and September average 22 rainy days. September is still hot, rather than a clear move into cooler weather, and has the lowest sunshine average. October begins to improve, with fewer rainy days while the sea stays at 28°C. November is a more balanced autumn option, bringing daytime temperatures of 26°C, sea temperatures of 26°C and 9 rainy days. It suits travellers who want warmth with less frequent rain than in summer.
A little more detail
Miami weather FAQs
Plain answers, grounded in the averages.
What is the best time to visit Miami?
Judged on warmth, low rainfall and sunshine, the best months in Miami are March, February and April. July is the hottest month (average high 30.1°C) and January the coolest (23.2°C).
How many months a year is Miami over 25°C?
9 months in Miami average a daytime high of 25°C or more, and 12 average 20°C or more.
When is the rainy season in Miami?
June is the wettest month in Miami (158 mm on average) and February the driest (41 mm). Annual rainfall averages 1082 mm.
What is the hottest temperature recorded in Miami?
The hottest day recorded in Miami between 1991 and 2020 reached 35.4°C on 10 April 2020; the coldest fell to 3.3°C on 10 January 2010. Records come from daily data for 1991-2020, not from a single station's all-time history.
When is Miami sunniest?
March, April and May share the highest sunshine average at 7 hours a day. March and April are better choices if you also want fewer rainy days; May offers warmer sea temperatures, but rain becomes more frequent.
When is the sea warmest for swimming?
July and August have the warmest sea temperatures, averaging 30°C. The trade-off is frequent rain and hot nights. For warm water with fewer rainy days, consider May or October, when the sea averages 27°C and 28°C respectively.
Will I need a jacket in the evenings?
A light layer is sensible in winter, especially in January when nights average 18°C. February and December evenings are warmer but can still suit an extra layer. Summer nights stay warm, with July and August averaging 26°C, so lighter clothing is the more practical starting point.
See also: United States weather by month · where else is hot in July
About these averages
ERA5-Land climate reanalysis via Open-Meteo (11 km grid) and NOAA Coral Reef Watch 5 km sea temperatures, 1991-2020
Averages computed from daily values at Miami. Sea temperature from the nearest 5 km sea cell, 1.9 km from that point. Sunshine hours are estimated from average cloud cover.Records are the highest and lowest daily values in that 30-year period, not all-time records. These are climate averages, not a forecast for your trip. How we measure holiday weather
- Hot · 25°C+
- Warm · 20°C to below 25°C
- Mild · 15°C to below 20°C
- Cool · below 15°C