Sebastian weather in March

In March, Sebastian sees average daytime highs of 78°F and overnight lows near 62°F, with 2.2 in of rain across 7.6 wet days and about 11.8 hours of daylight. It is the 9th-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 76°F in the first days to 80°F by the end. The sky is clear or mostly clear about 36% of the time in March, and the air most often feels dry.

Daylight stretches from about 11 h 24 min at the start of March to 12 h 12 min by month's end. Set against the rest of the year, March is Sebastian's 3rd-clearest and 1st-windiest month. For the whole year in context, see Sebastian's year-round climate.

Daytime high
78°
9th warmest
Overnight low
62°
4th coldest
Rainfall
2.2 in
7.6 wet days
Daylight
11 h 48 min
6:38 AM – 6:25 PM
Cloud cover
52%
3rd clearest
Wind
8 mph
1st windiest
Solar energy
5.15 kWh/m²
Travel score
7.3
out of 10

Sebastian is city in Indian River County, State of Florida, United States.

Density
637/km²
people per km²
Founded
1882

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in March

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 76°F in the first days to 80°F by the end.

A typical March day in Sebastian reaches about 78°F in the afternoon and slips back to 62°F overnight — a 16°F spread between the day's warmth and the night's chill. On most days the high lands between 69°F and 85°F. Set against its neighbours, March runs about 3°F warmer than February and about 4°F cooler than April.

40°60°80°151015202531
Avg high (°F)Avg low (°F)
17660
27660
37660
47660
57660
67660
77660
87661
97661
107661
117761
127761
137761
147761
157762
167762
177762
187862
197862
207862
217863
227863
237863
247963
257963
267964
277964
287964
298064
308064
318064

How March really feels in Sebastian

Once humidity and wind are folded in, March averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

March sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Sebastian weather by month

How March compares with the rest of the year at a glance. March is the 9th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan72° / 57°2.06.910.47.2
Feb74° / 58°1.77117.4
Mar78° / 62°2.27.611.87.3
Apr82° / 67°2.17.712.66.6
May85° / 72°3.211.313.45.1
Jun88° / 75°7.221.413.73.2
Jul89° / 77°6.723.213.62.8
Aug89° / 77°7.224.9132.7
Sep87° / 76°6.221.412.23.4
Oct83° / 72°3.712.711.35.5
Nov78° / 65°1.67.510.67.2
Dec74° / 60°1.55.610.37.5

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 19% of March, with mostly cloudy or overcast conditions the remaining 45%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15347
25347
35347
45446
55446
65446
75446
85446
95446
105446
115347
125347
135446
145446
155545
165545
175545
185545
195545
205545
215644
225644
235644
245644
255743
265743
275743
285842
295743
305743
315743

Chance of precipitation in March

Any precipitation

Sebastian gets around 2.2 in of rain over 7.6 wet days in March. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 24% and peaks near 29% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
123
222
322
421
521
620
720
819
919
1020
1120
1221
1322
1423
1524
1624
1725
1826
1927
2028
2128
2229
2329
2429
2529
2629
2728
2828
2927
3027
3127

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

Most of March feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, March lands in the dry band about 35% of days. Sticky, muggy-or-worse air turns up on roughly 19% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1391824200
2401823190
3411823190
4411822180
5421922170
6431922170
7431922160
8431922160
9431922150
10431923150
11421924150
12411925150
13402025151
14392026141
15382027151
16362127151
17352128151
18342228152
19332228162
20312228162
21302327172
22292327183
23282427193
24272426193
25272426203
26262525213
27262525213
28252525223
29252525233
30242426233
31232426243

Wind in March

Winds average 8 mph in March, the windiest month of the year.

Across March, daily wind ranges from about 8 mph on the calmest days to 8 mph at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (mph)Feels
18light breeze
28light breeze
38light breeze
48light breeze
58light breeze
68light breeze
78light breeze
88light breeze
98light breeze
108light breeze
118light breeze
128light breeze
138light breeze
148light breeze
158light breeze
168light breeze
178light breeze
188light breeze
198light breeze
208light breeze
218light breeze
228light breeze
238light breeze
248light breeze
258light breeze
268light breeze
278light breeze
288light breeze
298light breeze
308light breeze
318light breeze

Sunrise & sunset in March

DaylightNight

Daylight runs from about 11 h 24 min at the start of March to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 48 minutes over March. Sunrise moves from 6:54 AM to 6:20 AM, and sunset from 6:16 PM to 6:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.46:546:16
211.46:536:17
311.46:526:18
411.56:516:18
511.56:506:19
611.56:496:20
711.56:486:20
811.66:476:21
911.66:456:21
1011.66:446:22
1111.76:436:23
1211.76:426:23
1311.76:416:24
1411.76:406:24
1511.86:396:25
1611.86:386:25
1711.86:376:26
1811.96:356:26
1911.96:346:27
2011.96:336:28
2111.96:326:28
2212.06:316:29
2312.06:306:29
2412.06:286:30
2512.06:276:30
2612.16:266:31
2712.16:256:31
2812.16:246:32
2912.26:236:32
3012.26:216:33
3112.26:206:33

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 5.15 kWh/m².

For context, solar energy here swings from a low near 3.05 kWh/m² to a high of 6.39 kWh/m² in May across the year — March's 5.15 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.6Bright
24.7Bright
34.7Bright
44.7Bright
54.8Bright
64.8Bright
74.9Bright
84.9Bright
94.9Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
145.1Bright
155.1Bright
165.1Bright
175.2Bright
185.2Bright
195.2Bright
205.3Bright
215.3Bright
225.3Bright
235.4Bright
245.4Bright
255.5Bright
265.5Bright
275.5Bright
285.6Bright
295.6Bright
305.6Bright
315.7Bright
Planning a trip in March

Hazard calendar for Sebastian

In seasonPeak

None of Sebastian's seasonal hazards are active in March. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Sebastian sits in the Atlantic hurricane belt; the season peaks August–October.

Sebastian's monsoon runs June–October, when most of the year's rain falls.

Atlantic hurricane
Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is March a good time to visit Sebastian?

Our two travel scores rate March for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

7.3
Sightseeing
3rd-best month of the year
6.7
Beach & pool
3rd-best month of the year

March is one of the better times to visit Sebastian for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Sebastian in March

From March's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In March, Sebastian sees daytime highs around 78°F and nights near 62°F. Worth packing: light clothes and sun protection. About 8 days see rain.

light clothessun protection

Sea temperature near Sebastian in March

The nearest coast averages about 71°F in March — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in September at about 83°F and coldest in February near 70°F.

The water stays above 68°F all year — warm enough for a swim any month.

70°75°80°85°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°F)Comfort
Jan70Refreshing
Feb70Refreshing
Mar71Refreshing
Apr74Refreshing
May77Warm
Jun80Warm
Jul82Warm
Aug82Warm
Sep83Tropical
Oct81Warm
Nov76Warm
Dec73Refreshing

UV index in Sebastian in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Sebastian peaks around July 14 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 4 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highHighModerateJul 14UV 11Dec 19UV 4
UV index (midday)Level
Jan5Moderate
Feb7High
Mar9Very high
Apr8Very high
May10Very high
Jun11Extreme
Jul11Extreme
Aug10Extreme
Sep9Very high
Oct7Very high
Nov5High
Dec4Moderate

Air quality in Sebastian in March

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where March falls, not just the annual average.

Air quality in Sebastian is worst in July — around 17 µg/m³ PM2.5 (moderate), about 3.1× the cleanest month (December, 6 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1817 µg/m³Dec 156 µg/m³
PM2.5 (µg/m³)Level
Jan6Good
Feb7Good
Mar9Good
Apr10Good
May10Good
Jun14Moderate
Jul17Moderate
Aug15Moderate
Sep10Good
Oct8Good
Nov6Good
Dec6Good
Location & terrain

Where is Sebastian?

Sebastian sits at 27.8°N, 80.5°W, 20 ft above sea level, in United States. The nearest listed city is Vero Beach, 13 mi away.

Topography around Sebastian

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Sebastian.

Within 2 miles, the terrain around Sebastian has only modest variations in elevation — a maximum elevation change of 43 ft around an average of 13 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 82 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 246 ft.

The land around Sebastian is covered by water (44%) and trees (28%) within 2 miles, water (45%), trees (28%) and grassland (21%) within 10 miles, and water (37%), grassland (32%) and trees (25%) within 50 miles.

2 miles
43 ft
10 miles
82 ft
50 miles
246 ft
treesgrasslandcroplandartificial surfaceswaterwetlandmangroves
March weather nearby: Vero Beach 13 mi · Vero Beach South 14 mi · Palm Bay 17 mi · Florida Ridge 17 mi · Melbourne 21 mi · West Melbourne 21 mi · Fort Pierce 27 mi · Port Saint Lucie 37 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Sebastian (27.8164°, -80.4706°, elevation 20 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).