Monthly weather averages & travel planning

North America › 🇺🇸 United States › Miami
Updated: March 2026
March is a good time to visit Miami (7/10). With 11 daily sunshine hours and only 7 rain days, this month delivers genuinely reliable outdoor conditions, ranking it 4th sunniest of the year in Miami. Culture-focused travellers and those who prefer lighter crowds will find March a practical choice, with prices running lower than peak April without sacrificing all the good weather. April offers a similar profile at lower hotel rates if dates are flexible. The main practical note: Miami's popular sites are busiest between 10am and 3pm regardless of season. Arriving at opening time or after 4pm makes a significant difference to the experience. Planning tips: accommodation is generally available without long lead times, and flight prices are typically lower than peak season. Flexible travellers will find the best deals by booking 2-4 weeks ahead. Mid-week arrivals consistently unlock lower hotel rates than weekend check-ins.
Miami's March weather is shaped by atmospheric forces that make the data more than just numbers. The 25°C average high reflects a transitional pressure pattern where mid-latitude westerlies alternately bring mild maritime air and cooler polar intrusions. As a result, 11 daily sunshine hours are recorded on average, and rainfall of 49mm is distributed across approximately 7 days because precipitation events tend to be brief and infrequent.
25°C
77°F
Avg High
20°C
68°F
Avg Low
7 days
49 mm total
Rain Days
11h
per day avg
Sunshine
70%
Moderate
Humidity
The narrow 5°C gap between daytime and overnight temperatures, characteristic of coastal cities with maritime moderation, means a single mid-layer works across the whole day. Humidity averages 70%, which is comfortable for most visitors. On warmer days, lighter fabrics help with the mild stickiness in the afternoon. UV index averages 6 this month, classed as moderate. Sunscreen is a sensible precaution for extended outdoor time, particularly at midday. Wind averages 23 km/h, light enough to be refreshing on warm days but noticeable in open coastal areas or elevated viewpoints. In Fahrenheit: 77°F average high, 68°F overnight low. Data sourced from Open-Meteo ERA5 climate reanalysis (1991–2020 normals).
Packing for Miami in March means dressing for 25°C days and 20°C evenings. A light cotton tee with a casual overshirt works well at 25°C, the overshirt doubles as a layer for air-conditioned venues. Evening temperatures settle at 20°C, a modest 5°C drop that a light cardigan or denim jacket covers. Comfortable walking trainers are the versatile choice for both outdoor sightseeing and indoor venues.
Local tip: Layers are more practical than a single heavy garment in Miami. The day-to-evening temperature shift rewards packing a versatile mid-layer you can add or remove as conditions change.
March has no major festivals or public holidays in Miami, which is one of its practical advantages for independent travellers. Attractions run at lower capacity than during peak event periods, queues are shorter, and accommodation is easier to find without needing to book many months in advance. Local restaurants, markets, and transport operate at a relaxed pace, making this an ideal time for visitors who prefer a more authentic, unhurried experience of everyday city life rather than large crowds drawn in by a single major headline event.
Based on 25°C average highs and 7 rainy days
March marks the transition into warmer conditions in Miami, as the sun angle climbs and day length extends. Temperatures averaging 25°C by day and 20°C overnight reflect a city shaking off winter: the morning air still carries a cool edge, but afternoons are noticeably warmer than even four weeks prior. At 26 degrees north latitude, spring is one of the most dynamic periods in the annual cycle, with weekly temperature changes that can be larger than the month-to-month shifts of summer. This volatility is part of the appeal: Miami in March has a freshness and energy that peak-summer heat tends to mute. The warmth is sufficient for outdoor dining and long walking days. Climate data: Open-Meteo ERA5 (1991–2020).
Sunshine Hours
The average number of hours per day with direct sunlight. Calculated from satellite measurements. Days with more than 7 hours of sunshine are ideal for outdoor activities. Under 3 hours means overcast conditions dominate.
UV Index
A scale from 0-11+ measuring ultraviolet radiation intensity. UV 0-2: Minimal risk. UV 3-5: Moderate, wear sunscreen. UV 6-7: High, hat and SPF 30+ essential. UV 8-10: Very High, limit midday exposure. UV 11+: Extreme, seek shade between 10am-4pm.
Rain Days
A rain day is counted when precipitation exceeds 0.1mm. This threshold captures even light drizzle. Unlike total rainfall in mm, rain days tells you how often you might need an umbrella, which is useful for planning outdoor activities.
Humidity
Relative humidity as a percentage. Below 40%: Dry, skin and throat may feel parched. 40-60%: Comfortable, ideal for most people. 60-80%: Sticky, light breathable fabrics recommended. Above 80%: Muggy, heat feels more intense; quick-dry clothing is essential.
Miami in March
March ranks 4th sunniest of the year in Miami, with an average 11 daily sunshine hours. The driest months are February, March, and January. July is the hottest month (30°C avg high); January is the coolest (23°C). From here, temperatures rise 2°C into April. Compared to last month (February: 24°C high, 7 rain days), March is warmer and equally dry. March sits in the middle of the annual sunshine ranking for Miami, offering a reasonable balance of good weather and manageable crowds.
| Month | High | Low | Rain Days | Sun | Details |
|---|---|---|---|---|---|
| January | 23°C | 18°C | 8 | 9h | View |
| February | 24°C | 19°C | 7 | 10h | View |
| March | 25°C | 20°C | 7 | 11h | View |
| April | 27°C | 22°C | 8 | 12h | View |
| May | 28°C | 23°C | 12 | 12h | View |
| June | 29°C | 25°C | 20 | 11h | View |
| July | 30°C | 26°C | 21 | 12h | View |
| August | 30°C | 26°C | 22 | 11h | View |
| September | 29°C | 25°C | 22 | 10h | View |
| October | 28°C | 24°C | 15 | 10h | View |
| November | 26°C | 22°C | 9 | 9h | View |
| December | 24°C | 20°C | 8 | 9h | View |
January
8 rain days, 9h sun
February
7 rain days, 10h sun
March
7 rain days, 11h sun
April
8 rain days, 12h sun
May
12 rain days, 12h sun
June
20 rain days, 11h sun
July
21 rain days, 12h sun
August
22 rain days, 11h sun
September
22 rain days, 10h sun
October
15 rain days, 10h sun
November
9 rain days, 9h sun
December
8 rain days, 9h sun
Cities within 500 km with comparable weather conditions
Data Sources for Miami
Climate normals represent 30-year averages (1991-2020). Individual years may vary.