Cañas weather in August

In August, Cañas sees average daytime highs of 28°C and overnight lows near 22°C, with 209 mm of rain across 24.3 wet days and about 12.3 hours of daylight. It is the 5th-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 2% of the time in August, and the air most often feels oppressive.

Daylight stretches from about 12 h 30 min at the start of August to 12 h 12 min by month's end. Set against the rest of the year, August is Cañas's 9th-clearest and 9th-windiest month. For the whole year in context, see Cañas's year-round climate.

Daytime high
28°
5th warmest
Overnight low
22°
9th coldest
Rainfall
209 mm
24.3 wet days
Daylight
12 h 18 min
5:34 AM – 5:55 PM
Cloud cover
88%
9th clearest
Wind
8 km/h
9th windiest
Solar energy
4.46 kWh/m²
Travel score
3.8
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical August day in Cañas reaches about 28°C in the afternoon and slips back to 22°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 30°C. Set against its neighbours, August runs on par with July and on par with September.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12822
22822
32822
42822
52822
62822
72822
82822
92822
102822
112822
122822
132822
142822
152822
162822
172822
182822
192822
202822
212822
222822
232822
242822
252822
262822
272822
282822
292822
302822
312822

How August really feels in Cañas

Once humidity and wind are folded in, August 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

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

Cañas weather by month

How August compares with the rest of the year at a glance. August is the 5th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 20°164.811.57.6
Feb28° / 20°82.311.77.9
Mar29° / 20°72.211.96.9
Apr30° / 21°377.212.25.2
May29° / 22°22121.812.53.7
Jun28° / 22°26525.612.63.5
Jul28° / 22°17822.712.54.2
Aug28° / 22°20924.312.33.8
Sep28° / 21°29027.712.13.3
Oct28° / 21°31227.611.83.6
Nov27° / 21°1341811.55.0
Dec27° / 21°429.211.46.7

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 5% of August, with mostly cloudy or overcast conditions the remaining 94%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1892
2892
3892
4892
5892
6892
7892
8892
9793
10694
11694
12694
13694
14694
15694
16694
17694
18694
19694
20694
21694
22694
23694
24694
25694
26694
27694
28694
29694
30694
31595

Chance of precipitation in August

Any precipitation

Cañas gets around 209 mm of rain over 24.3 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 79% and peaks near 89% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
170
270
371
471
571
672
772
873
973
1074
1175
1275
1376
1477
1578
1679
1779
1880
1981
2082
2182
2283
2384
2485
2585
2686
2787
2887
2988
3088
3189

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the oppressive band about 92% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)
11189
21189
31090
41090
51090
61090
7991
8991
9991
10991
11892
12892
13892
14892
15892
16892
17892
18793
19793
20793
21793
22694
23694
24694
25694
26595
27595
28595
29595
30496
31496

Wind in August

Winds average 8 km/h in August.

Across August, daily wind ranges from about 6 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
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
286calm
296calm
306calm
316calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 12 h 30 min at the start of August to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over August. Sunrise moves from 5:33 AM to 5:34 AM, and sunset from 6:00 PM to 5:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.55:336:00
212.55:336:00
312.45:336:00
412.45:336:00
512.45:335:59
612.45:335:59
712.45:335:59
812.45:335:58
912.45:345:58
1012.45:345:57
1112.45:345:57
1212.45:345:57
1312.45:345:56
1412.45:345:56
1512.45:345:55
1612.35:345:55
1712.35:345:54
1812.35:345:54
1912.35:345:53
2012.35:345:53
2112.35:345:52
2212.35:345:52
2312.35:345:51
2412.35:345:51
2512.35:345:50
2612.35:345:50
2712.25:345:49
2812.25:345:49
2912.25:345:48
3012.25:345:47
3112.25:345:47

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.46 kWh/m².

For context, solar energy here swings from a low near 3.89 kWh/m² to a high of 6.1 kWh/m² in March across the year — August's 4.46 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.4Bright
24.4Bright
34.4Bright
44.4Bright
54.4Bright
64.4Bright
74.4Bright
84.4Bright
94.4Bright
104.4Bright
114.4Bright
124.4Bright
134.4Bright
144.4Bright
154.5Bright
164.5Bright
174.5Bright
184.5Bright
194.5Bright
204.5Bright
214.5Bright
224.5Bright
234.5Bright
244.5Bright
254.5Bright
264.5Bright
274.5Bright
284.5Bright
294.5Bright
304.5Bright
314.5Bright
Planning a trip in August

Hazard calendar for Cañas

In seasonPeak

In August, Cañas sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Cañas's rainy season runs May–October, when most of the year's rain falls.

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

Is August a good time to visit Cañas?

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

3.8
Sightseeing
8th-best month of the year
4.3
Beach & pool
9th-best month of the year

August is a weaker month for outdoor sightseeing in Cañas.

What to pack for Cañas in August

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

In August, Cañas sees daytime highs around 28°C and nights near 22°C. Pack light clothes and rain gear. About 24 days see rain.

light clothesrain gear

Sea temperature near Cañas in August

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

The sea at the nearest coast (about 61 km away) is warmest in May at about 29°C and coldest in February near 27°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
Jan27Warm
Feb27Warm
Mar27Warm
Apr29Tropical
May29Tropical
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct28Tropical
Nov28Warm
Dec27Warm

UV index in Cañas in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Cañas peaks around March 19 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highMar 19UV 14Dec 16UV 10
UV index (midday)Level
Jan11Extreme
Feb13Extreme
Mar14Extreme
Apr14Extreme
May13Extreme
Jun13Extreme
Jul12Extreme
Aug13Extreme
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec9Very high

Air quality in Cañas in August

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Cañas is worst in May — around 23 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (January, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMay 1623 µg/m³Jan 1210 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar13Moderate
Apr21Moderate
May23Moderate
Jun21Moderate
Jul22Moderate
Aug20Moderate
Sep18Moderate
Oct15Moderate
Nov12Good
Dec10Good
Location & terrain

Where is Cañas?

Cañas sits at 10.4°N, 85.1°W, 86 m above sea level, in Costa Rica. The nearest listed city is Monteverde, 34 km away.

MonteverdeLiberiaNicoyaLa FortunaPuntarenasSan JoséChacaritaEsparza

Topography around Cañas

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

Within 3 km, the terrain around Cañas has only modest variations in elevation — a maximum elevation change of 181 m around an average of 83 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 723 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,977 m.

The land around Cañas is covered by grassland (46%) and trees (41%) within 3 km, trees (46%) and grassland (40%) within 16 km, and trees (59%) and grassland (25%) within 80 km.

3 km
181 m
16 km
723 m
80 km
1,977 m
treesgrasslandcroplandartificial surfaceswatermangroves
August weather nearby: Monteverde 34 km · Liberia 44 km · Nicoya 50 km · La Fortuna 50 km · Puntarenas 58 km · San José 58 km · Chacarita 61 km · Esparza 68 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 Cañas (10.4311°, -85.0982°, elevation 86 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).