When to go · Costa Rica
Costa Rica in August
Mixed month. Humpback whales off Uvita (Aug–Oct); rain most afternoons.
Key facts
- Verdict
- Mixed
- Crowds
- Medium
- Costa Rica
- Prices
- Medium
- Costa Rica
Verdict
Humpback whales off Uvita (Aug–Oct); rain most afternoons.
Is another month better than August?
August is rated mixed. These months rate higher:
- JanuaryGreatDry and sunny on the Pacific; windy in Guanacaste; peak prices after New Year.
- FebruaryGreatDry and clear; whale-free but good wildlife; book cars early.
- MarchGreatHot and dry; Semana Santa may fall here (check) — beaches full.
- AprilGreatHottest month in Guanacaste; Easter crowds if late; still dry.
Weather in August
- Guanacaste and the north Pacific · Liberia, Tamarindo, Nosara, Santa Teresarainy
The driest region: brown hills and hot days Dec–Apr; a short dry spell (veranillo) in July.
- Central and south Pacific · Manuel Antonio, Uvita, Osa, Corcovadorainy
Very wet Sep–Oct; some Osa lodges close and Corcovado can shut in October (check).
- Central Valley and mountains · San José, Monteverde, Poás, Irazúrainy
Spring-like 18–26 °C (64–79 °F); Monteverde is cool, windy and misty — pack a fleece.Spring-like 64–79 °F (18–26 °C); Monteverde is cool, windy and misty — pack a fleece.
- Northern plains · La Fortuna, Arenalrainy
Rain any month; Arenal's cone is often in cloud — mornings are clearest.
- Caribbean · Puerto Viejo, Cahuita, Tortuguerofine
Reverse pattern: September–October are the driest months; Nov–Jan the wettest.
- Central Pacific: Jacó and the central coast · Sea level, Tárcoles to Queposrainy
Dry season roughly December to April; heaviest rain September–October, often in afternoon bursts.
- Central Pacific: Gulf islands and Montezuma side · Nicoya Gulf coastrainy
Similar pattern; the gulf crossing can be rough in wind.
- Central Valley: Central Valley floor · San José, Alajuela, Heredia, Cartagorainy
December–April is the driest window; May–November brings afternoon showers. Temperatures sit around 20–26 °C (68–79 °F) by day and 10–15 °C (50–59 °F) at night year-round.December–April is the driest window; May–November brings afternoon showers. Temperatures sit around 68–79 °F (20–26 °C) by day and 50–59 °F (10–15 °C) at night year-round.
- Guanacaste: Guanacaste coast and lowlands · Liberia, the beach strip, Nicoyarainy
Dry season roughly December to April with strong sun and wind; rain concentrates June–October, often as afternoon showers. The province is hotter and drier than the rest of Costa Rica.
- Limón Province: Caribbean coast (Puerto Limón to Sixaola) · Sea-level lowlands along the coast roadrainy
No true dry season. September and October are the driest months; February and March are the next best. Expect 27–31 °C (81–88 °F) year-round and short heavy showers.No true dry season. September and October are the driest months; February and March are the next best. Expect 81–88 °F (27–31 °C) year-round and short heavy showers.
- Limón Province: Tortuguero and the canals · Northern Limón, boat access onlyrainy
Rain almost daily; turtle nesting peaks July to October, with green turtles the main species.
- North Costa Rica: La Fortuna / Arenal · Volcano foothills and lake basinrainy
Driest stretch is roughly December to April; the rest of the year is green and wet, with afternoon downpours. Arenal is often cloud-covered — mornings give the clearest views.
- North Costa Rica: Sarapiquí and the northern lowlands · Rainforest toward the Nicaraguan borderrainy
One of the wettest parts of the country; rain most months, so plan indoor and river activities with wet-weather backup.
- South Pacific Costa Rica: Costanera Sur coast · Dominical, Uvita, Ojochalrainy
Dry season roughly December to April; heaviest rain September and October.
- South Pacific Costa Rica: Osa Peninsula · Puerto Jiménez, Drake Bay, Corcovadorainy
One of the wettest parts of Costa Rica; expect mud and leeches on trails in the wet months.
- San José26 °C (79 °F) / 18 °C (64 °F), 20 rain days79 °F (26 °C) / 64 °F (18 °C), 20 rain days
- Alajuela27 °C (81 °F) / 17 °C (63 °F), 19 rain days81 °F (27 °C) / 63 °F (17 °C), 19 rain days
- Atenas27 °C (81 °F) / 18 °C (64 °F), 9 rain days81 °F (27 °C) / 64 °F (18 °C), 9 rain days
- Bijagua de Upala28 °C (82 °F) / 20 °C (68 °F), 16 rain days82 °F (28 °C) / 68 °F (20 °C), 16 rain days
- Brasilito33 °C (91 °F) / 24 °C (75 °F), 9 rain days91 °F (33 °C) / 75 °F (24 °C), 9 rain days
- Bribri29 °C (84 °F) / 22 °C (72 °F), 16 rain days84 °F (29 °C) / 72 °F (22 °C), 16 rain days
- Cabo Matapalo30 °C (86 °F) / 22 °C (72 °F), 21 rain days86 °F (30 °C) / 72 °F (22 °C), 21 rain days
- Cahuita33 °C (91 °F) / 25 °C (77 °F), 16 rain days91 °F (33 °C) / 77 °F (25 °C), 16 rain days
- Carate30 °C (86 °F) / 22 °C (72 °F), 20 rain days86 °F (30 °C) / 72 °F (22 °C), 20 rain days
- Cartago25 °C (77 °F) / 16 °C (61 °F), 20 rain days77 °F (25 °C) / 61 °F (16 °C), 20 rain days
- Curridabat25 °C (77 °F) / 17 °C (63 °F), 20 rain days77 °F (25 °C) / 63 °F (17 °C), 20 rain days
- Dominical30 °C (86 °F) / 23 °C (73 °F), 20 rain days86 °F (30 °C) / 73 °F (23 °C), 20 rain days
- Drake Bay33 °C (91 °F) / 25 °C (77 °F), 16 rain days91 °F (33 °C) / 77 °F (25 °C), 16 rain days
- Esterillos31 °C (88 °F) / 23 °C (73 °F), 15 rain days88 °F (31 °C) / 73 °F (23 °C), 15 rain days
- Finca Sonador29 °C (84 °F) / 22 °C (72 °F), 15 rain days84 °F (29 °C) / 72 °F (22 °C), 15 rain days
- Golfito29 °C (84 °F) / 22 °C (72 °F), 13 rain days84 °F (29 °C) / 72 °F (22 °C), 13 rain days
- Grecia29 °C (84 °F) / 22 °C (72 °F), 15 rain days84 °F (29 °C) / 72 °F (22 °C), 15 rain days
- Heredia25 °C (77 °F) / 17 °C (63 °F), 20 rain days77 °F (25 °C) / 63 °F (17 °C), 20 rain days
- Jacó31 °C (88 °F) / 23 °C (73 °F), 17 rain days88 °F (31 °C) / 73 °F (23 °C), 17 rain days
- La Fortuna29 °C (84 °F) / 21 °C (70 °F), 20 rain days84 °F (29 °C) / 70 °F (21 °C), 20 rain days
- Las Catalinas32 °C (90 °F) / 24 °C (75 °F), 15 rain days90 °F (32 °C) / 75 °F (24 °C), 15 rain days
- Liberia31 °C (88 °F) / 23 °C (73 °F), 14 rain days88 °F (31 °C) / 73 °F (23 °C), 14 rain days
- Los Chiles28 °C (82 °F) / 22 °C (72 °F), 12 rain days82 °F (28 °C) / 72 °F (22 °C), 12 rain days
- Malpaís30 °C (86 °F) / 23 °C (73 °F), 17 rain days86 °F (30 °C) / 73 °F (23 °C), 17 rain days
- Manuel Antonio30 °C (86 °F) / 23 °C (73 °F), 13 rain days86 °F (30 °C) / 73 °F (23 °C), 13 rain days
- Montezuma28 °C (82 °F) / 22 °C (72 °F), 15 rain days82 °F (28 °C) / 72 °F (22 °C), 15 rain days
- Nicoya30 °C (86 °F) / 22 °C (72 °F), 13 rain days86 °F (30 °C) / 72 °F (22 °C), 13 rain days
- Nosara33 °C (91 °F) / 24 °C (75 °F), 10 rain days91 °F (33 °C) / 75 °F (24 °C), 10 rain days
- Parismina33 °C (91 °F) / 24 °C (75 °F), 15 rain days91 °F (33 °C) / 75 °F (24 °C), 15 rain days
- Pavones30 °C (86 °F) / 22 °C (72 °F), 23 rain days86 °F (30 °C) / 72 °F (22 °C), 23 rain days
- Playa Carrillo31 °C (88 °F) / 24 °C (75 °F), 15 rain days88 °F (31 °C) / 75 °F (24 °C), 15 rain days
- Playa Grande32 °C (90 °F) / 23 °C (73 °F), 13 rain days90 °F (32 °C) / 73 °F (23 °C), 13 rain days
- Playa Hermosa, Garabito31 °C (88 °F) / 23 °C (73 °F), 15 rain days88 °F (31 °C) / 73 °F (23 °C), 15 rain days
- Playa Hermosa, Osa28 °C (82 °F) / 22 °C (72 °F), 16 rain days82 °F (28 °C) / 72 °F (22 °C), 16 rain days
- Playas del Coco33 °C (91 °F) / 23 °C (73 °F), 13 rain days91 °F (33 °C) / 73 °F (23 °C), 13 rain days
- Pochote32 °C (90 °F) / 24 °C (75 °F), 15 rain days90 °F (32 °C) / 75 °F (24 °C), 15 rain days
- Potrero33 °C (91 °F) / 24 °C (75 °F), 14 rain days91 °F (33 °C) / 75 °F (24 °C), 14 rain days
- Providencia23 °C (73 °F) / 13 °C (55 °F), 19 rain days73 °F (23 °C) / 55 °F (13 °C), 19 rain days
- Puerto Jimenez27 °C (81 °F) / 22 °C (72 °F), 18 rain days81 °F (27 °C) / 72 °F (22 °C), 18 rain days
- Puerto Limón33 °C (91 °F) / 26 °C (79 °F), 12 rain days91 °F (33 °C) / 79 °F (26 °C), 12 rain days
- Puerto Viejo de Sarapiquí29 °C (84 °F) / 22 °C (72 °F), 15 rain days84 °F (29 °C) / 72 °F (22 °C), 15 rain days
- Puerto Viejo de Talamanca30 °C (86 °F) / 23 °C (73 °F), 19 rain days86 °F (30 °C) / 73 °F (23 °C), 19 rain days
- Punta Uva32 °C (90 °F) / 25 °C (77 °F), 15 rain days90 °F (32 °C) / 77 °F (25 °C), 15 rain days
- Quepos29 °C (84 °F) / 22 °C (72 °F), 21 rain days84 °F (29 °C) / 72 °F (22 °C), 21 rain days
- Quesada29 °C (84 °F) / 22 °C (72 °F), 15 rain days84 °F (29 °C) / 72 °F (22 °C), 15 rain days
- Sámara33 °C (91 °F) / 24 °C (75 °F), 12 rain days91 °F (33 °C) / 75 °F (24 °C), 12 rain days
- San Gerardo de Dota22 °C (72 °F) / 13 °C (55 °F), 19 rain days72 °F (22 °C) / 55 °F (13 °C), 19 rain days
- San Isidro de El General30 °C (86 °F) / 22 °C (72 °F), 14 rain days86 °F (30 °C) / 72 °F (22 °C), 14 rain days
- San Pedro de Montes de Oca27 °C (81 °F) / 19 °C (66 °F), 20 rain days81 °F (27 °C) / 66 °F (19 °C), 20 rain days
- San Ramón26 °C (79 °F) / 16 °C (61 °F), 13 rain days79 °F (26 °C) / 61 °F (16 °C), 13 rain days
- Santa Elena33 °C (91 °F) / 23 °C (73 °F), 13 rain days91 °F (33 °C) / 73 °F (23 °C), 13 rain days
- Santa Teresa30 °C (86 °F) / 23 °C (73 °F), 12 rain days86 °F (30 °C) / 73 °F (23 °C), 12 rain days
- Sierpe33 °C (91 °F) / 24 °C (75 °F), 14 rain days91 °F (33 °C) / 75 °F (24 °C), 14 rain days
- Sixaola29 °C (84 °F) / 24 °C (75 °F), 13 rain days84 °F (29 °C) / 75 °F (24 °C), 13 rain days
- Tilarán29 °C (84 °F) / 21 °C (70 °F), 16 rain days84 °F (29 °C) / 70 °F (21 °C), 16 rain days
- Tortuguero30 °C (86 °F) / 23 °C (73 °F), 22 rain days86 °F (30 °C) / 73 °F (23 °C), 22 rain days
- Turrialba30 °C (86 °F) / 22 °C (72 °F), 13 rain days86 °F (30 °C) / 72 °F (22 °C), 13 rain days
- Uvita30 °C (86 °F) / 23 °C (73 °F), 15 rain days86 °F (30 °C) / 73 °F (23 °C), 15 rain days
Festivals and holidays
Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.
Virgen de los Ángeles
2 Aug
Pilgrimage to Cartago; roads closed overnight.
Mother's Day
15 Aug
Restaurants full.
Virgin of Los Ángeles pilgrimage and holiday
1–2 August · San José
Walkers fill the road east; buses disrupted on 2 August.
Crowds and prices
- Crowds · Costa Rica
- Medium
- Prices · Costa Rica
- Medium
Compare two months
Weather, crowds and prices for any two months in Costa Rica, side by side.
Verdict
Aug: Mixed
Jan: Great (better)
Crowds
Aug: Medium
Jan: High
Prices
Aug: Medium
Jan: High
Festivals listed
Aug: 3
Jan: 3
August: Humpback whales off Uvita (Aug–Oct); rain most afternoons.
January: Dry and sunny on the Pacific; windy in Guanacaste; peak prices after New Year.
Costa Rica: figures are long-term averages from this guide, not a forecast.
What to pack
- A rain jacket or umbrella and shoes that dry fast
Where to go in August
Rated best or good this month
Best months: Dec–Apr, Jun–Sep
Best months: Dec–Apr (dry season); May–Nov is greener and cheaper with afternoon rain
Best months: Mar–Sep (turtle nesting season)
Best months: Jul–Oct for green turtles; Feb–Apr and Sep–Oct are the relatively drier windows