Marco, United States experiences average highs of 28°C (82°F) and lows of 22°C (72°F) throughout the year. Rainfall is frequent, averaging about 13 rainy days per month. Sunshine is abundant, averaging about 10 hours per day. High humidity combined with warm temperatures produces a tropical feel year-round. Average highs have stayed broadly stable across the available records.
Marco, United States Weather & Climate 2026
Monthly climate averages for Marco, United States. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Dec 
Wetter season: May–Oct At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
6.3/10
Best: January, February, March, November, December
UV Index
7
High
Temperature 28°C / 22°C
Feels Like 31°C / 24°C
Rainy Days 13
Rainfall 108 mm
Sunshine 10 h
Humidity 77%
Wind Speed 15 km/h
Dew Point 20°C
Hottest Month
31°C
July
Avg Low26°C
Rain25days
Coldest Month
16°C
January
Avg High22°C
Rain6days
Driest Month
4days
February
Avg High25°C
Avg Low18°C
Windiest Month
18 km/h
March (Gusts 39)
Sea Temperature
20°C – 31°C
Warmest water: July (
31.4°C
)
Worst Time to Visit
Consider avoiding June, July, August, September due to extreme heat, heavy rainfall, oppressive humidity.
Sun Position
Sunrise 06:36
Daylight 13.8h
Sunset 20:21
Live conditions—
Marco on the map · live conditions
Marco, United States
- Continent
- Americas
- Country
- United States
- City
- Marco
- Population
- 14.9K
- Elevation
- 0 m
- Coordinates
- 25.97°, -81.73°
Seasonal Breakdown
Spring
Mar–May
Avg High 28°C
Avg Low 21°C
Rain 8 days/mo
1/3 best months
Summer
Jun–Aug
Avg High 31°C
Avg Low 25°C
Rain 25 days/mo
Autumn
Sep–Nov
Avg High 28°C
Avg Low 23°C
Rain 13 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 24°C
Avg Low 17°C
Rain 5 days/mo
3/3 best months
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 22°C / 16°C . Feb: 25°C / 18°C . Mar: 26°C / 19°C . Apr: 28°C / 21°C . May: 30°C / 23°C . Jun: 30°C / 25°C . Jul: 31°C / 26°C . Aug: 31°C / 26°C . Sep: 30°C / 25°C . Oct: 29°C / 23°C . Nov: 26°C / 20°C . Dec: 24°C / 18°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 43 mm. Feb: 30 mm. Mar: 35 mm. Apr: 43 mm. May: 111 mm. Jun: 258 mm. Jul: 197 mm. Aug: 208 mm. Sep: 187 mm. Oct: 92 mm. Nov: 47 mm. Dec: 44 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 74%. Feb: 77%. Mar: 72%. Apr: 70%. May: 73%. Jun: 81%. Jul: 82%. Aug: 83%. Sep: 83%. Oct: 78%. Nov: 75%. Dec: 77%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 18 km/h . Feb: 17 km/h . Mar: 18 km/h . Apr: 18 km/h . May: 16 km/h . Jun: 13 km/h . Jul: 12 km/h . Aug: 13 km/h . Sep: 14 km/h . Oct: 16 km/h . Nov: 16 km/h . Dec: 16 km/h .
Sunshine
Sunshine
Sunshine: Jan: 9h. Feb: 10h. Mar: 11h. Apr: 11h. May: 12h. Jun: 11h. Jul: 11h. Aug: 10h. Sep: 10h. Oct: 10h. Nov: 9h. Dec: 9h.
Sea Temperature
Sea Temperatureswim
Line chart showing monthly sea temperature. Jan: 20°C . Feb: 22°C . Mar: 24°C . Apr: 26°C . May: 29°C . Jun: 30°C . Jul: 31°C . Aug: 31°C . Sep: 31°C . Oct: 28°C . Nov: 24°C . Dec: 22°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 5. Feb: UV 6. Mar: UV 8. Apr: UV 8. May: UV 9. Jun: UV 8. Jul: UV 8. Aug: UV 8. Sep: UV 8. Oct: UV 7. Nov: UV 5. Dec: UV 5.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy
Climate Trends
Average highs have stayed broadly stable across the available records. Average rainfall is trending drier by about 27 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Aug 2025 · 31°C | Jul · 31°C |
| Coldest month | Jan 2025 · 14°C | Jan · 16°C |
| Wettest month | Aug 2025 · 183 mm | Jun · 258 mm |
| Windiest month | Mar 2025 · 18 km/h | Mar · 18 km/h |
Month-by-Month Weather Table
January best
Excellent 
February best
Excellent March best
Excellent April
Excellent May
Fair June
Wet July
Wet August
Wet September
Wet October
Good November best
Excellent December best
Excellent | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January best | 22°C / 16°C | 23°C / 15°C | 6days (43 mm) Good | 8.6h Good | 74% Muggy | 4.7 Moderate | Excellent | View Details |
| February best | 25°C / 18°C | 26°C / 19°C | 4days (30 mm) Good | 9.9h Good | 77% Humid | 6.2 High | Excellent | View Details |
| March best | 26°C / 19°C | 28°C / 19°C | 5days (35 mm) Good | 10.6h Excellent | 72% Muggy | 7.5 Very High | Excellent | View Details |
| April | 28°C / 21°C | 31°C / 23°C | 8days (43 mm) Wet | 11.4h Excellent | 70% Muggy | 8.4 Very High | Excellent | View Details |
| May | 30°C / 23°C | 34°C / 26°C | 12days (111 mm) Wet | 11.7h Excellent | 73% Muggy | 8.7 Very High | Fair | View Details |
| June | 30°C / 25°C | 36°C / 30°C | 23days (258 mm) Wet | 11h Excellent | 81% Humid | 8.3 Very High | Wet | View Details |
| July | 31°C / 26°C | 38°C / 31°C | 25days (197 mm) Wet | 11h Excellent | 82% Humid | 8.4 Very High | Wet | View Details |
| August | 31°C / 26°C | 37°C / 31°C | 26days (208 mm) Wet | 10.1h Excellent | 83% Humid | 8.2 Very High | Wet | View Details |
| September | 30°C / 25°C | 36°C / 30°C | 22days (187 mm) Wet | 9.9h Good | 83% Humid | 7.6 Very High | Wet | View Details |
| October | 29°C / 23°C | 32°C / 26°C | 12days (92 mm) Wet | 9.6h Good | 78% Humid | 6.5 High | Good | View Details |
| November best | 26°C / 20°C | 28°C / 21°C | 5days (47 mm) Good | 9.2h Good | 75% Muggy | 5.4 High | Excellent | View Details |
| December best | 24°C / 18°C | 26°C / 18°C | 5days (44 mm) Good | 8.7h Good | 77% Humid | 4.7 Moderate | Excellent | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Marco are January, February, March, November, December, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Marco, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Marco is July, with average daytime highs of 31°C (87°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Marco is January, with average overnight lows of 16°C (60°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Marco is June, averaging 258mm of precipitation across 23 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Marco runs through August, July, June, September, with the heaviest rainfall in August. Based on 10-year averages for Marco.
Marco receives approximately 122 sunshine hours per year. The sunniest month is May with around 12 hours. Based on climate data for Marco.
The least favorable months to visit Marco are June, July, August, September, primarily due to extreme heat, heavy rainfall, oppressive humidity. For the best conditions, consider January, February, March, November, December instead.
The annual average UV index in Marco is 7, classified as high. SPF 30+ sunscreen, sunglasses, and seeking shade between 10:00–16:00 are strongly recommended.
Average humidity in Marco is 77%, classified as humid. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes — sea temperatures in March, April, May, June, July, August, September, October, November average 28°C (82°F), which is warm and comfortable for swimming and water activities.
Average wind speeds in Marco are 15 km/h (9 mph). The windiest month is March with peak winds reaching 18 km/h (11 mph) (gusts up to 39 km/h / 24 mph).
Marco averages 4 clear-sky days per month with overall cloud cover around 54%. The clearest skies occur in March.
The annual average dew point in Marco is 20°C (68°F), which feels muggy and uncomfortable. Expect heavy perspiration during warmer months — stay hydrated and take breaks in air-conditioned spaces.
Marco has a Tropical Monsoon climate, classified as Am under the Köppen system. Tropical climates are warm year-round with high rainfall and temperatures rarely dropping below 18°C (64°F).
The 'feels like' temperature in Marco ranges from 24°C (75°F) to 31°C (88°F) on average. Humidity and radiant heat mean it often feels warmer than the thermometer reads, especially in summer months.
June is not the best time to visit Marco, with a climate score of 1.9/10. Consider visiting during January, February, March, November, December instead for better conditions.
For June in Marco, pack Umbrella, Waterproof jacket, Waterproof shoes, Breathable clothing, Sunscreen (SPF 30+). With average highs of 30°C (86°F) and 23 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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