San Bernardino weather in March

In March, San Bernardino sees average daytime highs of 31°C and overnight lows near 22°C, with 109 mm of rain across 10.3 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 32°C in the first days to 30°C by the end. The sky is clear or mostly clear about 45% of the time in March, and the air most often feels oppressive.

Daylight stretches from about 12 h 36 min at the start of March to 11 h 48 min by month's end. Set against the rest of the year, March is San Bernardino's 5th-clearest and 12th-windiest month. For the whole year in context, see San Bernardino's year-round climate.

Daytime high
31°
4th warmest
Overnight low
22°
9th coldest
Rainfall
109 mm
10.3 wet days
Daylight
12 h 12 min
6:53 AM – 7:04 PM
Cloud cover
50%
5th clearest
Wind
10 km/h
12th windiest
Solar energy
5.37 kWh/m²
Travel score
4.6
out of 10

San Bernardino is district of Paraguay.

Density
41/km²
people per km²
Founded
1881

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

Temperature in March

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 32°C in the first days to 30°C by the end.

A typical March day in San Bernardino reaches about 31°C in the afternoon and slips back to 22°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 35°C. Set against its neighbours, March runs about 1°C cooler than February and about 3°C warmer than April.

15°20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13222
23222
33222
43222
53222
63222
73222
83222
93222
103122
113122
123122
133122
143122
153122
163122
173121
183121
193121
203121
213121
223121
233021
243021
253021
263021
273021
283021
293021
303020
313020

How March really feels in San Bernardino

Once humidity and wind are folded in, March averages 23 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
23
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in March is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

San Bernardino weather by month

How March compares with the rest of the year at a glance. March is the 4th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 23°12412.913.43.5
Feb32° / 23°14212.312.93.7
Mar31° / 22°10910.312.24.6
Apr28° / 19°1428.911.46.2
May24° / 16°1308.810.87.2
Jun23° / 14°978.310.57.1
Jul23° / 13°827.710.67.4
Aug26° / 15°706.611.17.7
Sep27° / 16°1138.611.86.9
Oct29° / 19°19612.112.65.3
Nov30° / 20°17711.113.24.8
Dec32° / 22°16312.713.53.9

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 45% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 14% of March, with mostly cloudy or overcast conditions the remaining 41%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15743
25842
35842
45842
55941
65941
75941
85941
95941
105941
115842
125842
135842
145842
155842
165842
175842
185842
195842
205842
215842
225941
235941
245941
255941
265941
275941
285941
295941
306040
315941

Chance of precipitation in March

Any precipitation

San Bernardino gets around 109 mm of rain over 10.3 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 34% and peaks near 40% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
140
239
338
438
537
636
735
835
934
1034
1133
1233
1333
1433
1533
1633
1733
1833
1933
2033
2133
2233
2333
2433
2533
2632
2732
2832
2932
3032
3131

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, March lands in the oppressive band about 43% of days. Sticky, muggy-or-worse air turns up on roughly 79% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1041023585
2041024575
3041126554
4031127554
5031128544
6031230514
7031231513
8031232503
9031333493
10021334483
11021434473
12031435462
13031535452
14031536442
15031636432
16041636421
17041636421
18151736411
19161736401
20161836391
21171836380
22171836370
23271836360
24281937350
25281937350
26281937340
27381937340
28381937330
29381937330
30381937330
31481936320

Wind in March

Winds average 10 km/h in March, the calmest month.

Across March, daily wind ranges from about 10 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in March

DaylightNight

Daylight runs from about 12 h 36 min at the start of March to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 48 minutes over March. Sunrise moves from 6:46 AM to 7:00 AM, and sunset from 7:19 PM to 6:48 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.66:467:19
212.56:467:18
312.56:477:17
412.56:477:16
512.56:487:15
612.46:487:14
712.46:497:14
812.46:497:13
912.46:507:12
1012.36:507:11
1112.36:517:10
1212.36:517:09
1312.36:527:07
1412.26:527:06
1512.26:537:05
1612.26:537:04
1712.26:547:03
1812.16:547:02
1912.16:557:01
2012.16:557:00
2112.16:566:59
2212.06:566:58
2312.06:576:57
2412.06:576:56
2512.06:576:55
2611.96:586:54
2711.96:586:53
2811.96:596:51
2911.96:596:50
3011.87:006:49
3111.87:006:48

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 5.37 kWh/m².

For context, solar energy here swings from a low near 2.8 kWh/m² to a high of 6.7 kWh/m² in December across the year — March's 5.37 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.7Bright
55.7Bright
65.7Bright
75.7Bright
85.6Bright
95.6Bright
105.6Bright
115.5Bright
125.5Bright
135.5Bright
145.4Bright
155.4Bright
165.3Bright
175.3Bright
185.3Bright
195.2Bright
205.2Bright
215.2Bright
225.1Bright
235.1Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
284.9Bright
294.9Bright
304.9Bright
314.8Bright
Planning a trip in March

Is March a good time to visit San Bernardino?

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

4.6
Sightseeing
9th-best month of the year
6.7
Beach & pool
5th-best month of the year

March is a reasonable time to visit San Bernardino for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for San Bernardino in March

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

In March, San Bernardino sees daytime highs around 31°C and nights near 22°C. Pack light clothes. Worth having: rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

UV index in San Bernardino in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in San Bernardino peaks around January 17 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 15 at about 5 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighModerateHighVery highExtremeJan 17UV 15Jul 15UV 5
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar11Extreme
Apr9Very high
May6High
Jun5Moderate
Jul5Moderate
Aug5High
Sep8Very high
Oct8Very high
Nov12Extreme
Dec13Extreme

Air quality in San Bernardino 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 San Bernardino is worst in September — around 28 µg/m³ PM2.5 (moderate), about 2.9× the cleanest month (December, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodGoodModerateGoodSep 1227 µg/m³Dec 1910 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb12Moderate
Mar11Good
Apr13Moderate
May13Moderate
Jun15Moderate
Jul17Moderate
Aug25Moderate
Sep28Moderate
Oct18Moderate
Nov13Moderate
Dec10Good
Location & terrain

Where is San Bernardino?

San Bernardino sits at 25.3°S, 57.3°W, 0 m above sea level, in Paraguay. The nearest listed city is Areguá, 9.0 km away.

Topography around San Bernardino

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

Within 3 km, the terrain around San Bernardino has only modest variations in elevation — a maximum elevation change of 183 m around an average of 91 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 272 m; within 80 km, significant variations in elevation — a maximum elevation change of 529 m.

The land around San Bernardino is covered by trees (51%) and water (42%) within 3 km, trees (72%) within 16 km, and grassland (52%) and trees (39%) within 80 km.

3 km
183 m
16 km
272 m
80 km
529 m
treesgrasslandcroplandartificial surfaceswaterwetland
March weather nearby: Areguá 9.0 km · Itauguá 11 km · Capiatá 16 km · Caacupé 18 km · San Lorenzo 22 km · Itá 22 km · Fernando de la Mora 23 km · Limpio 25 km

Paraguay travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B / C / N
220 V · 50 Hz
Prices
≈ 35% of US
price level, 2025
GDP per capita
$7,027
2025
Happiness
6.2 / 10
World Happiness, 2025
Safe drinking water
64%
of population, 2024
Homicide rate
6.8
per 100k, 2023
Road deaths
22
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Moderate
EF EPI 531
Religion
Roman Catholic 80%Protestant 7%Believer 6%other 1%

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 San Bernardino (-25.3107°, -57.2963°, elevation 0 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. 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).