San Isidro weather in February

In February, San Isidro sees average daytime highs of 24°C and overnight lows near 20°C, with 140 mm of rain across 21.6 wet days and about 11.7 hours of daylight. It is the 4th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 24°C through the month. The sky is clear or mostly clear about 50% of the time in February, and the air most often feels muggy.

Daylight stretches from about 11 h 36 min at the start of February to 11 h 48 min by month's end. Set against the rest of the year, February is San Isidro's 1st-clearest and 5th-windiest month. For the whole year in context, see San Isidro's year-round climate.

Daytime high
24°
4th warmest
Overnight low
20°
3rd coldest
Rainfall
140 mm
21.6 wet days
Daylight
11 h 42 min
5:59 AM – 5:40 PM
Cloud cover
46%
1st clearest
Wind
5 km/h
5th windiest
Solar energy
5.94 kWh/m²
Travel score
5.1
out of 10

San Isidro is district in Pérez Zeledón canton, San José province, Costa Rica.

Density
182/km²
people per km²
Founded
1892

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

Temperature in February

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 24°C through the month.

A typical February day in San Isidro reaches about 24°C in the afternoon and slips back to 20°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 25°C. Set against its neighbours, February runs on par with January and on par with March.

15°20°25°30°151015202528
Avg high (°C)Avg low (°C)
12420
22420
32420
42420
52420
62420
72420
82420
92420
102420
112420
122420
132420
142420
152420
162420
172420
182420
192420
202420
212420
222420
232420
242420
252420
262420
272420
282520

San Isidro weather by month

How February compares with the rest of the year at a glance. February is the 4th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan24° / 20°21025.211.54.8
Feb24° / 20°14021.611.75.1
Mar25° / 21°13825.611.94.7
Apr25° / 21°33028.612.23.8
May24° / 21°73030.812.43.4
Jun24° / 21°70929.912.53.4
Jul24° / 21°8333112.53.4
Aug24° / 21°9333112.33.4
Sep24° / 21°8083012.13.4
Oct24° / 20°95230.811.83.4
Nov24° / 20°92429.911.63.5
Dec24° / 20°41328.811.54.1

Cloud cover in February

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 50% of the time in February, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 24% of February, with mostly cloudy or overcast conditions the remaining 25%.

0%25%50%75%100%151015202528
Clearer (%)Cloudier (%)
17723
27723
37723
47723
57624
67624
77624
87624
97525
107525
117525
127525
137525
147525
157525
167525
177525
187426
197426
207426
217426
227426
237426
247426
257327
267327
277426
287426

Chance of precipitation in February

Any precipitation

San Isidro gets around 140 mm of rain over 21.6 wet days in February. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 77% and peaks near 80% on the wettest days.

0%20%40%60%80%151015202528
Rain chance (%)
175
275
375
475
575
675
775
876
976
1076
1176
1277
1377
1477
1577
1678
1778
1878
1978
2078
2179
2279
2379
2480
2580
2680
2780
2880

Humidity in February

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, February lands in the muggy band about 73% of days. Sticky, muggy-or-worse air turns up on roughly 75% of them.

0%25%50%75%100%151015202528
Humid (%)Muggy (%)Oppressive (%)
127721
227721
327721
427721
527721
626731
726731
826731
925741
1025741
1124751
1224751
1324751
1424751
1524751
1625741
1725741
1825741
1925741
2026722
2126722
2226722
2326722
2426722
2526722
2625732
2724742
2823752

Wind in February

Winds average 5 km/h in February.

Across February, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202528
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm

Sunrise & sunset in February

DaylightNight

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

Days grow by about 12 minutes over February. Sunrise moves from 6:00 AM to 5:54 AM, and sunset from 5:36 PM to 5:42 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202528
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:005:36
211.66:005:36
311.66:005:37
411.66:005:37
511.66:005:37
611.66:005:38
711.66:005:38
811.66:005:38
911.66:005:39
1011.76:005:39
1111.75:595:39
1211.75:595:39
1311.75:595:40
1411.75:595:40
1511.75:595:40
1611.75:585:40
1711.75:585:41
1811.75:585:41
1911.75:585:41
2011.75:575:41
2111.75:575:41
2211.75:575:41
2311.85:565:42
2411.85:565:42
2511.85:555:42
2611.85:555:42
2711.85:555:42
2811.85:545:42

Solar energy in February

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in February, about 5.94 kWh/m².

For context, solar energy here swings from a low near 3.71 kWh/m² to a high of 6.24 kWh/m² in March across the year — February's 5.94 kWh/m² sits near the top of that range.

0246151015202528
Solar energy (kWh/m²)Level
15.7Bright
25.8Bright
35.8Bright
45.8Bright
55.8Bright
65.8Bright
75.8Bright
85.9Bright
95.9Bright
105.9Bright
115.9Bright
125.9Bright
135.9Bright
145.9Bright
156.0Bright
166.0Bright
176.0Bright
186.0Bright
196.0Intense
206.0Intense
216.0Intense
226.0Intense
236.0Intense
246.1Intense
256.1Intense
266.1Intense
276.1Intense
286.1Intense
Planning a trip in February

Hazard calendar for San Isidro

In seasonPeak

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

San Isidro's rainy season runs May–November, when most of the year's rain falls.

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

Is February a good time to visit San Isidro?

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

5.1
Sightseeing
1st-best month of the year
4.4
Beach & pool
1st-best month of the year

February is a reasonable time to visit San Isidro for sightseeing.

What to pack for San Isidro in February

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

In February, San Isidro sees daytime highs around 24°C and nights near 20°C. Pack rain gear. Worth having: light clothes and sun protection. About 22 days see rain.

rain gearlight clothessun protection

Sea temperature near San Isidro in February

The nearest coast averages about 30°C in February — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 28 km away) is warmest in March at about 30°C and coldest in November near 28°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan29Tropical
Feb30Tropical
Mar30Tropical
Apr30Tropical
May29Tropical
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct28Tropical
Nov28Warm
Dec28Tropical

UV index in San Isidro in February

LowModerateHighVery highExtreme

Clear-sky midday UV in February peaks around 14 (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 Isidro peaks around March 16 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 16UV 14Dec 16UV 10
UV index (midday)Level
Jan12Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May13Extreme
Jun13Extreme
Jul12Extreme
Aug13Extreme
Sep13Extreme
Oct12Extreme
Nov12Extreme
Dec10Extreme
Location & terrain

Where is San Isidro?

San Isidro sits at 9.4°N, 83.7°W, 713 m above sea level, in Costa Rica. The nearest listed city is Manuel Antonio, 51 km away.

Manuel AntonioParaísoTurrialbaCartagoSan DiegoPatarráSan MiguelAserrí

Topography around San Isidro

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

Within 3 km, the terrain around San Isidro has only modest variations in elevation — a maximum elevation change of 211 m around an average of 723 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,363 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,764 m.

The land around San Isidro is covered by trees (40%), grassland (31%) and artificial surfaces (28%) within 3 km, trees (71%) and grassland (27%) within 16 km, and trees (67%) and water (22%) within 80 km.

3 km
211 m
16 km
2,363 m
80 km
3,764 m
treesgrasslandartificial surfaceswatermangroves
February weather nearby: Manuel Antonio 51 km · Paraíso 56 km · Turrialba 60 km · Cartago 60 km · San Diego 68 km · Patarrá 68 km · San Miguel 69 km · Aserrí 70 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 San Isidro (9.3674°, -83.6971°, elevation 713 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).