Temperature
Pleasant by day, mild at night.
74°Ftypical January high
Typical range
January climate
January in Arenal Volcano
Costa Rica · Central America
Mild days.
Some tradeoffs
Late
Daytime high
74°F
Lows around 63°F
Rain
Frequent rain
Sun
Not available
Air feel
Slightly humid
When to visit
Month-by-month fit
Best
Precipitation
Rain is frequent, including some longer spells. About 16 wet days, fewer than in most months.
52%wet-day frequency
AmountWet-day chance
Sunshine
Sunshine estimates are less reliable here; cloud and rain patterns are a better guide.
Heat & humidity by month
Humid air and frequent rain shape this month.
Slightly humidJanuary Heat feel
Easy airWarm airHumid air
Hourly temperature pattern
In January, afternoons feel about 72° and nights feel near 65°.
ComfortableWarmNight hours
Clear sky
Mostly cloudy skies this month.
37%January Clear sky
Clear skyCloud
Wind pattern
Calm winds are typical in January.
8 mphJanuary Light breeze
More detailIncludes daypart comfort
Typical January day
January late afternoons are around 71°F, easing to about 68°F in early evening.
Avg temp Typical range
Morning70°F
Rain44%
Cloud60%
Humid airModerate
Sun intensityModerate
Midday73°F
Rain41%
Cloud52%
Humid airModerate
Sun intensityStrong
Late afternoon71°F
Rain29%
Cloud46%
Humid airModerate
Sun intensityLow
Best windowEarly evening68°F
Rain26%
Cloud59%
Humid airModerate
Sun intensityMinimal
Data tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 74 | 63 | 4.5 | 16 | — | 87 |
| Feb | 76 | 63 | 2.1 | 9 | — | 83 |
| Mar | 78 | 64 | 1.2 | 7 | — | 80 |
| Apr | 80 | 65 | 2.1 | 10 | — | 80 |
| May | 80 | 67 | 9.9 | 24 | — | 86 |
| Jun | 78 | 67 | 12.6 | 29 | — | 90 |
| Jul | 77 | 67 | 10.4 | 28 | — | 90 |
| Aug | 78 | 67 | 9.9 | 28 | — | 90 |
| Sep | 79 | 66 | 11.3 | 29 | — | 90 |
| Oct | 77 | 66 | 12.8 | 30 | — | 91 |
| Nov | 76 | 65 | 11.8 | 26 | — | 90 |
| Dec | 75 | 64 | 7.8 | 22 | — | 88 |
Similar climates
Similar
Similar travel styleMonteverdeCosta RicaSimilar travel stylePerez ZeledonCosta RicaSimilar travel styleVang ViengLaosSimilar travel styleDominicaDominica
Want a side-by-side climate view? Compare Arenal Volcano with Monteverde.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: temporarily unavailable while its source is reviewed.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 1, 2026
Data & methodology