Santa Helena weather in April

In April, Santa Helena sees average daytime highs of 28°C and overnight lows near 19°C, with 106 mm of rain across 8.4 wet days and about 11.4 hours of daylight. It is the 7th-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 29°C in the first days to 26°C by the end. The sky is clear or mostly clear about 45% of the time in April, and the air most often feels muggy.

Daylight stretches from about 11 h 48 min at the start of April to 11 h 06 min by month's end. Set against the rest of the year, April is Santa Helena's 4th-clearest and 9th-windiest month. For the whole year in context, see Santa Helena's year-round climate.

Daytime high
28°
7th warmest
Overnight low
19°
6th coldest
Rainfall
106 mm
8.4 wet days
Daylight
11 h 24 min
7:55 AM – 7:20 PM
Cloud cover
50%
4th clearest
Wind
10 km/h
9th windiest
Solar energy
4.44 kWh/m²
Travel score
6.3
out of 10

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 29°C in the first days to 26°C by the end.

A typical April day in Santa Helena reaches about 28°C in the afternoon and slips back to 19°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 32°C. Set against its neighbours, April runs about 2°C cooler than March and about 4°C warmer than May.

10°15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12921
22921
32921
42921
52920
62920
72920
82920
92920
102920
112920
122920
132820
142820
152820
162819
172819
182819
192819
202819
212719
222719
232719
242719
252719
262718
272718
282718
292618
302618

How April really feels in Santa Helena

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

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

Santa Helena weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 23°12815.213.43.9
Feb31° / 23°12513.812.94.0
Mar30° / 22°1011212.24.7
Apr28° / 19°1068.411.46.3
May24° / 16°1399.110.87.1
Jun23° / 15°1148.810.57.1
Jul23° / 14°997.910.67.4
Aug25° / 15°856.511.17.7
Sep27° / 17°1339.211.86.8
Oct29° / 20°16212.612.65.3
Nov30° / 21°13311.613.24.9
Dec31° / 22°15414.413.54.2

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 13% of April, with mostly cloudy or overcast conditions the remaining 42%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15941
25941
35941
45941
55941
65941
75941
85941
95941
105941
115941
125842
135842
145941
155941
165941
175842
185842
195842
205743
215644
225644
235644
245644
255743
265644
275644
285644
295545
305545

Chance of precipitation in April

Any precipitation

Santa Helena gets around 106 mm of rain over 8.4 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 28% and peaks near 32% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
132
232
331
430
530
629
729
829
928
1028
1128
1228
1328
1428
1528
1628
1728
1828
1928
2028
2128
2228
2328
2427
2527
2627
2727
2827
2926
3026

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the muggy band about 43% of days. Sticky, muggy-or-worse air turns up on roughly 59% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
126194429
226194428
336204428
437204327
537204326
648204326
748204325
859204324
959204423
10510204422
11610204420
12610204419
13611204518
14611214517
15611214615
16611224614
17611234613
18711244612
19711254611
20711264610
2171127459
2271129449
2381130438
2481131427
2581133417
2691134406
2791235386
28101236375
29111336355
30121337345

Wind in April

Winds average 10 km/h in April.

Across April, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

Sunrise & sunset in April

DaylightNight

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

Days shrink by about 42 minutes over April. Sunrise moves from 7:49 AM to 8:02 AM, and sunset from 7:35 PM to 7:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.87:497:35
211.87:497:34
311.77:497:33
411.77:507:32
511.77:507:31
611.77:517:30
711.67:517:29
811.67:517:28
911.67:527:27
1011.67:527:26
1111.57:537:25
1211.57:537:24
1311.57:547:23
1411.57:547:22
1511.47:557:21
1611.47:557:20
1711.47:557:19
1811.47:567:18
1911.37:567:17
2011.37:577:16
2111.37:577:15
2211.37:587:15
2311.37:587:14
2411.27:597:13
2511.27:597:12
2611.28:007:11
2711.28:007:10
2811.18:017:09
2911.18:017:09
3011.18:027:08

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.44 kWh/m².

For context, solar energy here swings from a low near 2.97 kWh/m² to a high of 6.39 kWh/m² in December across the year — April's 4.44 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.7Bright
74.7Bright
84.7Bright
94.7Bright
104.6Bright
114.6Bright
124.6Bright
134.5Bright
144.5Bright
154.5Bright
164.4Bright
174.4Bright
184.3Bright
194.3Bright
204.3Bright
214.2Bright
224.2Bright
234.2Bright
244.1Bright
254.1Bright
264.0Bright
274.0Bright
284.0Moderate
294.0Moderate
303.9Moderate
Planning a trip in April

Is April a good time to visit Santa Helena?

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

6.3
Sightseeing
6th-best month of the year
7.1
Beach & pool
1st-best month of the year

April is a reasonable time to visit Santa Helena for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Santa Helena in April

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

In April, Santa Helena sees daytime highs around 28°C and nights near 19°C. Pack light clothes. Worth having: rain gear. About 8 days see rain.

light clothesrain gear

UV index in Santa Helena in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April 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 Santa Helena peaks around January 19 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighExtremeJan 19UV 15Jul 11UV 5
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar12Extreme
Apr9Very high
May6High
Jun5High
Jul5Moderate
Aug7High
Sep6High
Oct10Very high
Nov12Extreme
Dec13Extreme

Air quality in Santa Helena 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 Santa Helena is worst in September — around 21 µg/m³ PM2.5 (moderate), about 3.6× the cleanest month (March, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1620 µg/m³Mar 156 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb6Good
Mar6Good
Apr7Good
May7Good
Jun8Good
Jul7Good
Aug12Moderate
Sep21Moderate
Oct12Good
Nov8Good
Dec7Good
Location & terrain

Where is Santa Helena?

Santa Helena sits at 24.9°S, 54.3°W, 254 m above sea level, in Brazil. The nearest listed city is Marechal Cândido Rondon, 44 km away.

Topography around Santa Helena

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

Within 3 km, the terrain around Santa Helena has only modest variations in elevation — a maximum elevation change of 72 m around an average of 238 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 259 m; within 80 km, large variations in elevation — a maximum elevation change of 674 m.

The land around Santa Helena is covered by cropland (31%), trees (30%) and water (20%) within 3 km, trees (33%), cropland (31%) and water (28%) within 16 km, and cropland (57%) and trees (28%) within 80 km.

3 km
72 m
16 km
259 m
80 km
674 m
treesgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Marechal Cândido Rondon 44 km · Medianeira 54 km · Matelândia 55 km · São Miguel do Iguaçu 55 km · Toledo 62 km · Santa Terezinha de Itaipu 65 km · Ciudad del Este 78 km · Foz do Iguacu 81 km

Brazil travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / N
127 / 220 V · 60 Hz
Prices
≈ 46% of US
price level, 2025
GDP per capita
$10,713
2025
Happiness
6.6 / 10
World Happiness, 2025
Safe drinking water
89%
of population, 2024
Homicide rate
19.3
per 100k, 2023
Road deaths
16
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 482
Religion
Roman Catholic 57%Evangelical 27%none 9%other 4%

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 Santa Helena (-24.8603°, -54.3328°, elevation 254 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).