Mercedes Norte weather in March

In March, Mercedes Norte sees average daytime highs of 26°C and overnight lows near 17°C, with 20 mm of rain across 5.2 wet days and about 11.9 hours of daylight. It is the 2nd-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 38% of the time in March, and the air most often feels comfortable.

Daylight stretches from about 11 h 48 min at the start of March to 12 h 06 min by month's end. Set against the rest of the year, March is Mercedes Norte's 3rd-clearest and 3rd-windiest month. For the whole year in context, see Mercedes Norte's year-round climate.

Daytime high
26°
2nd warmest
Overnight low
17°
4th coldest
Rainfall
20 mm
5.2 wet days
Daylight
11 h 54 min
5:48 AM – 5:44 PM
Cloud cover
49%
3rd clearest
Wind
8 km/h
3rd windiest
Solar energy
5.95 kWh/m²
Travel score
7.5
out of 10

Temperature in March

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 26°C through the month.

A typical March day in Mercedes Norte reaches about 26°C in the afternoon and slips back to 17°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 28°C. Set against its neighbours, March runs about 1°C warmer than February and on par with April.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12616
22617
32617
42617
52617
62617
72617
82617
92617
102617
112617
122617
132617
142617
152617
162617
172617
182617
192617
202617
212617
222617
232617
242617
252617
262617
272717
282717
292717
302717
312717

Mercedes Norte weather by month

How March compares with the rest of the year at a glance. March is the 2nd-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 16°295.811.57.8
Feb25° / 16°204.111.78.0
Mar26° / 17°205.211.97.5
Apr27° / 17°6211.212.26.2
May25° / 18°33324.712.54.2
Jun25° / 18°39027.312.63.8
Jul24° / 18°2672512.54.3
Aug25° / 18°35226.412.34.0
Sep24° / 17°42428.312.13.7
Oct24° / 17°44428.811.83.8
Nov24° / 17°22421.511.54.8
Dec24° / 17°7210.811.46.9

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 29% of March, with mostly cloudy or overcast conditions the remaining 33%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17525
27525
37525
47426
57426
67426
77426
87327
97327
107228
117129
127030
136931
146832
156733
166634
176634
186535
196436
206436
216337
226238
236238
246238
256139
266040
276040
285941
295941
305842
315743

Chance of precipitation in March

Any precipitation

Mercedes Norte gets around 20 mm of rain over 5.2 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 17% and peaks near 23% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
114
214
314
414
514
614
714
814
914
1014
1114
1215
1315
1416
1517
1617
1718
1818
1919
2019
2119
2220
2320
2420
2521
2621
2721
2822
2922
3022
3123

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, March lands in the comfortable band about 61% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
11857232
21758232
31759222
41759222
51760212
61662202
71662202
81563202
91563202
101464202
111464202
121464202
131365202
141364212
151364212
161264222
171264222
181263232
191163242
201162252
211163251
221063261
231062271
241061281
251059301
261058311
271057321
281056331
291054351
30954361
31952381

Wind in March

Winds average 8 km/h in March.

Across March, daily wind ranges from about 7 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in March

DaylightNight

Daylight runs from about 11 h 48 min at the start of March to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over March. Sunrise moves from 5:56 AM to 5:39 AM, and sunset from 5:44 PM to 5:44 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.85:565:44
211.85:565:44
311.85:555:44
411.85:555:44
511.85:545:44
611.85:545:44
711.85:535:44
811.95:535:44
911.95:525:44
1011.95:525:44
1111.95:515:44
1211.95:505:44
1311.95:505:44
1411.95:495:44
1511.95:495:44
1611.95:485:44
1711.95:485:44
1812.05:475:44
1912.05:465:44
2012.05:465:44
2112.05:455:44
2212.05:455:44
2312.05:445:44
2412.05:445:44
2512.05:435:44
2612.05:425:44
2712.05:425:44
2812.05:415:44
2912.15:415:44
3012.15:405:44
3112.15:395:44

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 5.95 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 3.65 kWh/m² to a high of 5.95 kWh/m² in March across the year — March's 5.95 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.8Bright
55.9Bright
65.9Bright
75.9Bright
85.9Bright
95.9Bright
105.9Bright
115.9Bright
125.9Bright
135.9Bright
146.0Bright
156.0Bright
166.0Bright
176.0Bright
186.0Bright
196.0Bright
206.0Bright
216.0Bright
226.0Bright
236.0Bright
246.0Intense
256.0Intense
266.0Intense
276.0Intense
286.0Intense
296.0Intense
306.0Intense
316.0Intense
Planning a trip in March

Hazard calendar for Mercedes Norte

In seasonPeak

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

Mercedes Norte's rainy season runs May–November, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is March a good time to visit Mercedes Norte?

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

7.5
Sightseeing
3rd-best month of the year
7.2
Beach & pool
2nd-best month of the year

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

What to pack for Mercedes Norte in March

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

In March, Mercedes Norte sees daytime highs around 26°C and nights near 17°C. Worth packing: light clothes and sun protection. About 5 days see rain.

light clothessun protection

Sea temperature near Mercedes Norte in March

The nearest coast averages about 29°C in March — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 56 km away) is warmest in April at about 29°C and coldest in November near 28°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb29Tropical
Mar29Tropical
Apr29Tropical
May29Tropical
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct28Tropical
Nov28Warm
Dec28Tropical

UV index in Mercedes Norte in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 15 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mercedes Norte peaks around March 19 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 19UV 15Dec 16UV 10
UV index (midday)Level
Jan12Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May13Extreme
Jun13Extreme
Jul13Extreme
Aug13Extreme
Sep13Extreme
Oct12Extreme
Nov12Extreme
Dec10Extreme

Air quality in Mercedes Norte 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 Mercedes Norte is worst in May — around 19 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (January, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMay 1718 µg/m³Jan 149 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb10Good
Mar11Good
Apr17Moderate
May19Moderate
Jun17Moderate
Jul18Moderate
Aug17Moderate
Sep16Moderate
Oct14Moderate
Nov12Good
Dec10Good
Location & terrain

Where is Mercedes Norte?

Mercedes Norte sits at 10.0°N, 84.1°W, 1,118 m above sea level, in Costa Rica. The nearest listed city is San Francisco, 1.0 km away.

Topography around Mercedes Norte

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Mercedes Norte.

Within 3 km, the terrain around Mercedes Norte has significant variations in elevation — a maximum elevation change of 295 m around an average of 1,131 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,296 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,470 m.

The land around Mercedes Norte is covered by artificial surfaces (62%) and trees (25%) within 3 km, trees (57%) and artificial surfaces (28%) within 16 km, and trees (71%) within 80 km.

3 km
295 m
16 km
2,296 m
80 km
3,470 m
treesgrasslandcroplandartificial surfaceswater
March weather nearby: San Francisco 1.0 km · Heredia 2.0 km · San Pablo 4.0 km · San Juan 7.0 km · Colima 8.0 km · San Rafael 9.0 km · Alajuela 9.0 km · San Jose 9.0 km

Costa Rica travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 59% of US
price level, 2025
GDP per capita
$19,970
2025
Happiness
7.4 / 10
World Happiness, 2025
Safe drinking water
81%
of population, 2024
Homicide rate
17.7
per 100k, 2023
Road deaths
14.8
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 516
Religion
Roman Catholic 48%none 27%Evangelical and Pentecostal 20%other 3%

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 Mercedes Norte (10.0061°, -84.1302°, elevation 1,118 m), 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. 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).