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Arenal, Guanacaste

83°F
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Arenal

Guanacaste

83°
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Arenal, Guanacaste Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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Today Hourly 10-Day Radar MinuteCast®

Monthly

Air Quality Health & Activities

April

January February March April May June July August September October November December

2026

2025 2026 2027

10-Day

S
M
T
W
T
F
S
29
85°
68°
30
86°
69°
31
87°
69°
1
87°
68°
2
83°
66°
3
86°
68°
4
87°
67°
5
87°
67°
6
88°
66°
7
88°
67°
8
85°
69°
9
87°
70°
10
85°
69°
11
A little rain; windy, humid
84°
72°
12
Windy; an a.m. shower or two
83°
70°
13
Windy; an a.m. shower or two
85°
71°
14
A couple of showers; windy
83°
69°
15
Breezy; an a.m. shower or two
83°
69°
16
Breezy in the morning
85°
66°
17
Mostly cloudy
89°
63°
18
Partly sunny
92°
64°
19
Plenty of sunshine
91°
65°
20
Plenty of sun
92°
66°
21
Humid with a little rain
91°
65°
22
A shower in the afternoon
92°
64°
23
Humid; afternoon rain
91°
63°
24
A few morning showers; humid
86°
70°
25
Humid; a little morning rain
87°
69°
26
Cloudy and humid
86°
70°
27
Mostly cloudy and humid
85°
70°
28
Mostly cloudy and humid
85°
69°
29
A t-shower in spots; humid
86°
70°
30
Couple of thunderstorms
85°
70°
1
Still cloudy and humid
84°
69°
2
Rather cloudy and humid
85°
70°

Temperature Graph

°F
100° 92° 84° 76° 68° Apr
Today 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo

April Weather in Arenal

Arenal's April 2026 forecast shows daily high temperatures ranging from 83° to 92°, with overnight lows between 63° and 72°. The average high for April is 87° with an average low of 68°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how April weather will actually feel in Arenal. See also: May | June | July.

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Weather Near Arenal:

  • Agua Caliente, Guanacaste
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