Playa Mansita, Hacienda Pinilla, Tamarindo, Guanacaste, 50309, Costa Rica
Contact: +1 (888) 605-1350
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JW Marriott Guanacaste Resort and Spa: Month-by-Month Weather Guide
Trying to understand the weather before booking JW Marriott Guanacaste Resort and Spa? This in-depth month-by-month guide breaks down Guanacaste’s dry season, rainy season, typical temperatures, afternoon shower patterns, wettest months, and beach-day expectations—so you can pack and plan with confidence. Whether you want the sunniest stretch from December through April, the lush feel of early green season, or a realistic look at September and October rains, this breakdown shows what each part of the year usually brings.
Planning your stay guide
Wondering what the weather is like by month at JW Marriott Guanacaste Resort and Spa? This guide breaks down what each month typically feels like in Guanacaste, Costa Rica—including average temperatures in °F, humidity, rain chances, and what that means for beach days, family activities, golf, and exploring the stunning Pacific coastline.
Quick takeaway:
JW Marriott Guanacaste Resort and Spa enjoys warm, tropical Pacific weather year-round. Most days land roughly between 82–95°F for daytime highs. The most consistently dry and comfortable stretch is usually December–April (often around 88–92°F highs with minimal rain), while May–November brings Costa Rica's "green season" with higher humidity (often around 86–90°F) and afternoon rain showers.
Guanacaste note: This region is one of Costa Rica's driest—even during the rainy season, mornings are often sunny and perfect for beach time, with brief tropical showers typically arriving in the afternoon.
JW Marriott Guanacaste Resort and Spa enjoys warm, tropical Pacific weather year-round. Most days land roughly between 82–95°F for daytime highs. The most consistently dry and comfortable stretch is usually December–April (often around 88–92°F highs with minimal rain), while May–November brings Costa Rica's "green season" with higher humidity (often around 86–90°F) and afternoon rain showers.
Guanacaste note: This region is one of Costa Rica's driest—even during the rainy season, mornings are often sunny and perfect for beach time, with brief tropical showers typically arriving in the afternoon.
Driest months: ~88–92°F (Dec–Apr)
Green season: ~86–90°F (May–Nov)
Rainiest stretch: Sep–Oct (more afternoon storms)
Sweet spot value: May & Nov (often)
Use the month-by-month cards below to choose the best timing for your trip style: guaranteed sunshine, lush landscapes, fewer crowds, or better rates—without guessing.
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Explore the resort
Continue planning your stay at JW Marriott Guanacaste Resort and Spa with these quick guides. Explore room categories from ocean-view suites to garden plunge pool options, browse restaurants including Azul, Sabanero Steak House, Tamarine Asian Fusion, Palapa, Pimento Italian, Pimento Breakfast, Waves and Cream, and Sandbar Lounge, preview activities and family amenities, and learn about the spa, golf, and wedding venues—so you can book the best experience for your Costa Rica vacation in Guanacaste.
JW Marriott Guanacaste Weather by Month (Quick Overview)
This quick chart helps you compare months at a glance for JW Marriott Guanacaste Resort and Spa on Costa Rica's Pacific coast. Use it to plan for sunshine, rainfall patterns, and the easiest conditions for beach days, wildlife tours, golf rounds, and family adventures.
| Month | Typical temps (°F) | Rain & humidity | Best for |
|---|---|---|---|
| Jan | High ~88–91°F • Low ~70–74°F | Very dry; minimal rain expected | Peak beach weather + family trips |
| Feb | High ~89–92°F • Low ~70–74°F | Driest month; excellent sunshine | Guaranteed sun + outdoor adventures |
| Mar | High ~90–93°F • Low ~71–75°F | Very dry; hot afternoons | Spring break + wildlife tours |
| Apr | High ~91–94°F • Low ~73–77°F | Still dry; hottest feel of the year | Last of dry season + Easter trips |
| May | High ~88–91°F • Low ~73–77°F | Green season starts; afternoon showers | Lush landscapes + value rates |
| Jun | High ~87–90°F • Low ~73–77°F | Moderate rain; sunny mornings common | Fewer crowds + green scenery |
| Jul | High ~87–90°F • Low ~73–77°F | "Veranillo" mini-dry spell often occurs | Summer trips + better weather window |
| Aug | High ~87–90°F • Low ~73–77°F | Rain picks up again; humid | Wildlife viewing + rain-flexible plans |
| Sep | High ~86–89°F • Low ~72–76°F | Rainiest month; frequent afternoon storms | Best deals + lush jungle scenery |
| Oct | High ~86–89°F • Low ~72–76°F | Very rainy; plan resort-centric days | Lowest crowds + spa relaxation |
| Nov | High ~87–90°F • Low ~71–75°F | Rain tapers; transition to dry season | Shoulder season value + improving weather |
| Dec | High ~88–91°F • Low ~70–74°F | Dry season returns; festive weather | Holiday trips + peak conditions |
Month-by-Month Weather at JW Marriott Guanacaste
These month cards translate the weather into real planning for JW Marriott Guanacaste Resort and Spa: what it feels like on-property on Costa Rica's Pacific coast, how to time excursions and beach days, and what to expect for family activities and outdoor adventures.
Weather by month
January
Peak dry season with near-guaranteed sunshine—ideal for beach days, golf, wildlife tours, and all-day family activities with minimal rain concerns.
Typical tempsHigh ~88–91°F • Low ~70–74°F
Beach + poolExcellent all day
Rain chanceVery low
Best forPeak family trips + outdoor adventures
Weather by month
February
Typically the driest month in Guanacaste—perfect for guaranteed sunshine, romantic beach walks, zip-lining adventures, and resort dining under the stars.
Typical tempsHigh ~89–92°F • Low ~70–74°F
HumidityLower tropical feel
Rain chanceMinimal to none
Best forPeak weather + wedding events
Weather by month
March
Hot and dry with strong sunshine—great for spring break trips, though midday heat calls for shade breaks, pool time, and plenty of hydration.
Typical tempsHigh ~90–93°F • Low ~71–75°F
Heat levelStrong midday sun
ExcursionsBest early morning or late afternoon
Best forSpring breakers + wildlife spotting
Weather by month
April
The hottest and driest month—sunshine guaranteed but plan your activities around the heat with early golf rounds, spa time, and afternoon pool relaxation.
Typical tempsHigh ~91–94°F • Low ~73–77°F
Heat managementShade + hydration essential
Rain chanceVery low
Best forLast of peak dry season + Easter trips
Weather by month
May
Green season begins with afternoon showers arriving—mornings stay sunny for beach time, with lush landscapes emerging and excellent value rates.
Typical tempsHigh ~88–91°F • Low ~73–77°F
Rain patternAfternoon showers, sunny mornings
LandscapeNature comes alive
Best forValue seekers + nature lovers
Weather by month
June
Green season continues with moderate rainfall—mornings often sunny for beach and pool time, with tropical showers refreshing the afternoon heat.
Typical tempsHigh ~87–90°F • Low ~73–77°F
Morning activitiesBest window for excursions
Rain feelModerate; plan flexible afternoons
Best forFewer crowds + green scenery
Weather by month
July
Often features "veranillo"—a mini-dry spell with improved weather—making it a surprisingly good month for summer family trips with better conditions than expected.
Typical tempsHigh ~87–90°F • Low ~73–77°F
Veranillo effectTemporary drier period common
Rain feelLower than June/August
Best forSummer vacations + outdoor activities
Weather by month
August
Rain picks up again after July's mini-dry spell—humid with more frequent afternoon showers, but mornings still offer good beach windows and wildlife is very active.
Typical tempsHigh ~87–90°F • Low ~73–77°F
Rain patternMore frequent afternoon storms
WildlifeExcellent viewing opportunities
Best forNature enthusiasts + flexible planners
Weather by month
September
Typically the rainiest month with frequent afternoon storms—best for resort-focused trips with spa time, restaurant exploration, and flexible outdoor plans.
Typical tempsHigh ~86–89°F • Low ~72–76°F
Rain levelHighest of the year
SceneryPeak lush jungle landscapes
Best forBest deals + lowest crowds
Weather by month
October
Still very rainy with humid conditions—prioritize indoor amenities like the spa and restaurants, with beach time best attempted in early mornings.
Typical tempsHigh ~86–89°F • Low ~72–76°F
Rain feelVery frequent storms
Resort activitiesFocus on covered amenities
Best forSpa retreats + maximum value
Weather by month
November
Transition month as rains taper and dry season approaches—improving conditions with shoulder-season value and fewer crowds than peak months.
Typical tempsHigh ~87–90°F • Low ~71–75°F
Weather trendImproving throughout the month
Rain patternDecreasing frequency
Best forShoulder season sweet spot
Weather by month
December
Dry season returns with festive weather—excellent for holiday trips, family reunions, and wedding celebrations with reliable sunshine and comfortable conditions.
Typical tempsHigh ~88–91°F • Low ~70–74°F
Rain chanceVery low
Peak seasonStarts ramping up
Best forHoliday vacations + special events
What to Pack for JW Marriott Guanacaste (By Weather)
Packing for JW Marriott Guanacaste Resort and Spa depends on when you visit. The dry season (Dec–Apr) needs sun protection and light layers, while the green season (May–Nov) requires rain gear and humidity-friendly clothing. Rule of thumb: Dec–Apr stays reliably dry, while May–Nov brings tropical showers—usually brief but regular.
Dry season months (often ~88–94°F highs, Dec–Apr)
- Reef-safe sunscreen + sunglasses + wide-brim hats (UV is strong)
- Light evening layer (ocean breezes can be cooler after sunset)
- Comfortable resort-casual outfits for specialty restaurants
- Closed-toe shoes for nature tours and hiking excursions
- Insect repellent for wildlife areas
Green season months (often ~86–91°F highs, May–Nov)
- Compact rain jacket or poncho (afternoon showers common)
- Quick-dry clothing + extra swimwear (humidity stays high)
- Water-resistant sandals and closed-toe water shoes
- Electrolytes + after-sun care for humid conditions
- Waterproof bag for electronics during excursions
- Light, breathable fabrics (cotton/linen blends work best)
FAQ: JW Marriott Guanacaste Weather by Month
What month has the best weather at JW Marriott Guanacaste?
Most travelers prefer December through April—Costa Rica's dry season—when daytime highs are typically around 88–92°F with minimal rain and excellent sunshine. February is often considered the driest month with near-guaranteed beach weather.
What is the rainy season in Guanacaste?
The green season typically runs May through November, with the rainiest months usually being September and October. However, even during rainy season, mornings are often sunny—rain typically arrives in the afternoon as brief tropical showers.
Does it rain all day during Costa Rica's rainy season?
No. In Guanacaste, rain typically follows a pattern of sunny mornings with afternoon showers. You can usually enjoy beach time, golf, and excursions in the morning, with rain arriving mid-to-late afternoon. Showers are often intense but brief.
What is "veranillo" and when does it happen?
"Veranillo" is a mini-dry spell that typically occurs in July, sometimes extending into early August. During this period, rainfall decreases temporarily, creating better weather conditions within the green season—making it a surprisingly good time to visit.
Is JW Marriott Guanacaste still enjoyable during the rainy season?
Yes. The resort offers extensive covered amenities including multiple restaurants, a world-class spa, fitness facilities, and family activities. Plus, the green season brings lush landscapes, excellent wildlife viewing, fewer crowds, and significantly better rates. Morning beach time is usually still possible.
What's the hottest month in Guanacaste?
April is typically the hottest month, with highs often reaching 91–94°F. It's also the end of the dry season, so while sunshine is guaranteed, midday heat can be intense—plan activities for early morning or late afternoon.
Can you swim in the ocean year-round at JW Marriott Guanacaste?
Yes. The Pacific Ocean stays warm year-round, typically ranging from 80–85°F. Water conditions are generally calmer during the dry season (Dec–Apr), though swimming is possible throughout the year with normal ocean safety precautions.
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