San Borja weather in April

In April, San Borja sees average daytime highs of 30°C and overnight lows near 22°C, with 154 mm of rain across 16.7 wet days and about 11.7 hours of daylight. It is the 9th-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 14% of the time in April, and the air most often feels oppressive.

Daylight stretches from about 11 h 54 min at the start of April to 11 h 30 min by month's end. Set against the rest of the year, April is San Borja's 6th-clearest and 11th-windiest month. For the whole year in context, see San Borja's year-round climate.

Daytime high
30°
9th warmest
Overnight low
22°
6th coldest
Rainfall
154 mm
16.7 wet days
Daylight
11 h 42 min
6:37 AM – 6:17 PM
Cloud cover
70%
6th clearest
Wind
7 km/h
11th windiest
Solar energy
4.53 kWh/m²
Travel score
3.9
out of 10

San Borja is Municipio en Bolivia.

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

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical April day in San Borja reaches about 30°C in the afternoon and slips back to 22°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 33°C. Set against its neighbours, April runs on par with March and about 2°C warmer than May.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13123
23123
33123
43123
53123
63122
73122
83122
93122
103122
113122
123122
133122
143122
153022
163022
173022
183022
193022
203022
213022
223022
233022
243022
253021
263021
273021
283021
293021
303021

How April really feels in San Borja

Once humidity and wind are folded in, April averages 30 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
30
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

San Borja weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 23°34827.112.82.7
Feb31° / 23°30323.312.52.9
Mar31° / 23°2652412.13.0
Apr30° / 22°15416.711.73.9
May29° / 20°8611.311.35.5
Jun28° / 19°577.611.16.5
Jul28° / 18°496.211.26.5
Aug31° / 19°60711.54.9
Sep33° / 21°11810.811.93.6
Oct33° / 23°17817.612.33.0
Nov32° / 23°21219.412.73.0
Dec31° / 23°29424.612.92.8

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 14% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 19% of April, with mostly cloudy or overcast conditions the remaining 67%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12773
22773
32773
42971
52971
63070
73070
83169
93169
103268
113268
123268
133367
143367
153367
163466
173466
183466
193466
203565
213664
223664
233763
243763
253763
263763
273862
283862
293961
304060

Chance of precipitation in April

Any precipitation

San Borja gets around 154 mm of rain over 16.7 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 55% and peaks near 69% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
169
268
368
467
566
665
763
862
961
1059
1158
1256
1355
1454
1553
1652
1752
1851
1950
2050
2149
2249
2349
2449
2548
2648
2748
2847
2947
3046

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the oppressive band about 47% of days. Sticky, muggy-or-worse air turns up on roughly 92% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
100294643
2002104542
3002104542
4003114442
5003114441
6003124441
7004124440
8004134339
9004134339
10015144338
11015144337
12015144436
13015144435
14016144434
15016144533
16116144532
17126144632
18126144731
19126144730
20126144829
21126134928
22136135027
23136135126
24136135225
25147135124
26147135322
27157135321
28158135320
29158135518
30168145417

Wind in April

Winds average 7 km/h in April.

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

0246810151015202530
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

Sunrise & sunset in April

DaylightNight

Daylight runs from about 11 h 54 min at the start of April to 11 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over April. Sunrise moves from 6:35 AM to 6:40 AM, and sunset from 6:28 PM to 6:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:356:28
211.96:356:27
311.86:366:26
411.86:366:26
511.86:366:25
611.86:366:24
711.86:366:24
811.86:366:23
911.86:366:22
1011.76:366:21
1111.76:376:21
1211.76:376:20
1311.76:376:19
1411.76:376:19
1511.76:376:18
1611.76:376:17
1711.76:376:17
1811.66:376:16
1911.66:386:15
2011.66:386:15
2111.66:386:14
2211.66:386:13
2311.66:386:13
2411.66:396:12
2511.56:396:12
2611.56:396:11
2711.56:396:11
2811.56:396:10
2911.56:396:09
3011.56:406:09

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.53 kWh/m².

For context, solar energy here swings from a low near 3.68 kWh/m² to a high of 5.46 kWh/m² in October across the year — April's 4.53 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.6Bright
24.6Bright
34.6Bright
44.6Bright
54.6Bright
64.6Bright
74.6Bright
84.6Bright
94.6Bright
104.6Bright
114.6Bright
124.6Bright
134.6Bright
144.6Bright
154.5Bright
164.5Bright
174.5Bright
184.5Bright
194.5Bright
204.5Bright
214.5Bright
224.4Bright
234.4Bright
244.4Bright
254.4Bright
264.4Bright
274.3Bright
284.3Bright
294.3Bright
304.3Bright
Planning a trip in April

Hazard calendar for San Borja

In seasonPeak

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

San Borja's rainy season runs October–March, when most of the year's rain falls.

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

Is April a good time to visit San Borja?

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

3.9
Sightseeing
5th-best month of the year
5.6
Beach & pool
6th-best month of the year

April is a weaker month for outdoor sightseeing in San Borja.

What to pack for San Borja in April

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

In April, San Borja sees daytime highs around 30°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 17 days see rain.

light clothesrain gearsun protection

UV index in San Borja in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April 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 Borja peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near September 11 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeJan 21UV 15Sep 11UV 8
UV index (midday)Level
Jan16Extreme
Feb15Extreme
Mar14Extreme
Apr11Extreme
May9Very high
Jun8Very high
Jul8Very high
Aug8Very high
Sep8Very high
Oct12Extreme
Nov14Extreme
Dec13Extreme

Air quality in San Borja in April

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in San Borja is worst in September — around 50 µg/m³ PM2.5 (poor), about 6.4× the cleanest month (May, 8 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodModeratePoorModerateSep 2350 µg/m³May 218 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb12Good
Mar11Good
Apr9Good
May8Good
Jun8Good
Jul11Good
Aug22Moderate
Sep50Poor
Oct50Poor
Nov27Moderate
Dec11Good
Location & terrain

Where is San Borja?

San Borja sits at 14.9°S, 66.7°W, 195 m above sea level, in Bolivia. The nearest listed city is Caranavi, 140 km away.

CaranaviTrinidadSorataLa PazQuimeAchocallaLajaViacha

Topography around San Borja

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

Within 3 km, the terrain around San Borja has only modest variations in elevation — a maximum elevation change of 21 m around an average of 194 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 44 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,527 m.

The land around San Borja is covered by grassland (61%) and trees (28%) within 3 km, grassland (63%) and trees (30%) within 16 km, and trees (75%) and grassland (23%) within 80 km.

3 km
21 m
16 km
44 m
80 km
1,527 m
treesshrubsgrasslandartificial surfaceswaterwetland
April weather nearby: Caranavi 140 km · Trinidad 198 km · Sorata 228 km · La Paz 237 km · Quime 242 km · Achocalla 243 km · Laja 256 km · Viacha 260 km

Bolivia travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B / C
230 V · 50 Hz
Prices
≈ 40% of US
price level, 2025
GDP per capita
$5,148
2025
Happiness
5.8 / 10
World Happiness, 2025
Homicide rate
4.4
per 100k, 2023
Road deaths
21.1
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Moderate
EF EPI 521
Religion
Roman Catholic 65%Protestant 20%none 6%other 5%

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 Borja (-14.852°, -66.7495°, elevation 195 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).