Temperature
Hot by day, warm at night.
87°Ftypical September high
Typical range
September climate
September in Nosara
Costa Rica · Central America
Not the best time: Humid air is the main limitation.
Not an ideal month
Daytime high
87°F
Lows around 75°F
Rain
Rain most days
Sun
8.5 h/day
Air feel
Very humid
Sea temp
83°F
Great for swimming
When to visit
Month-by-month fit
Best
Precipitation
It rains on most days, including some longer spells. About 30 wet days, the highest monthly average.
100%wet-day frequency
AmountWet-day chance
Sunshine
Cloudier spells limit sunshine.
8.4 hSeptember sunshine
Heat & humidity by month
Very humid air is a major factor this month.
75%September Heat feel
Easy airWarm airHot airHumid airVery humid air
Hourly temperature pattern
In September, afternoons feel about 91° and nights feel near 85°.
WarmHotSwelteringNight hours
Clear sky
Overcast skies this month.
10%September Clear sky
Clear skyCloud
Wind pattern
Calm winds are typical in September.
3 mphSeptember Calm
Sea temperature
83°FSeptember sea temp
More detailIncludes daypart comfort
Typical September day
September late afternoons are around 81°F, easing to about 79°F in early evening.
Avg temp Typical range
Morning83°F
Feels 93°F
Rain68%
Cloud83%
Humid airVery high
Sun intensityModerate
Midday85°F
Feels 94°F
Rain90%
Cloud90%
Humid airVery high
Sun intensityStrong
Late afternoon81°F
Feels 90°F
Rain84%
Cloud95%
Humid airVery high
Sun intensityLow
Early evening78°F
Feels 88°F
Rain42%
Cloud95%
Humid airVery high
Sun intensityMinimal
Best windowData tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% | Sea°F |
|---|---|---|---|---|---|---|---|
| Jan | 91 | 74 | 0.5 | 4 | 11.2 | 70 | 82 |
| Feb | 93 | 75 | 0.5 | 2 | 11.6 | 65 | 82 |
| Mar | 94 | 75 | 1.0 | 6 | 11.7 | 66 | 82 |
| Apr | 92 | 76 | 4.1 | 16 | 11.3 | 75 | 84 |
| May | 89 | 77 | 15.4 | 28 | 9.5 | 86 | 84 |
| Jun | 87 | 76 | 17.5 | 29 | 9.0 | 89 | 84 |
| Jul | 87 | 76 | 13.8 | 28 | 9.2 | 88 | 84 |
| Aug | 87 | 76 | 16.3 | 29 | 9.0 | 89 | 84 |
| Sep | 87 | 75 | 18.3 | 30 | 8.4 | 90 | 83 |
| Oct | 86 | 75 | 20.6 | 30 | 8.2 | 91 | 83 |
| Nov | 86 | 75 | 10.3 | 23 | 9.6 | 87 | 82 |
| Dec | 88 | 74 | 2.0 | 9 | 10.7 | 79 | 82 |
Similar climates
Similar
Similar travel styleSanta TeresaCosta RicaSimilar travel styleEl TuncoEl SalvadorSimilar travel styleTamarindoCosta RicaSimilar travel styleSt. LuciaSaint Lucia
Want a side-by-side climate view? Compare Nosara with Santa Teresa.
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: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 1, 2026
Data & methodology