ClimateExplore the planning map
Climate · Nicoya

Nicoya in September

Hot and wet, as the days shorten.

Typical weather, averaged over 30 years

September in Nicoya is hot: highs near 87°F, lows near 75°F. Rain falls on almost every day, and the days shorten by 12 minutes from the first week to the last.September in Nicoya is hot: highs near 31°C, lows near 24°C. Rain falls on almost every day, and the days shorten by 12 minutes from the first week to the last.

High
87°F31°Caverage
Low
75°F24°Caverage
Wet days
7a week · 99% of days
Daylight
12h 10mon average

Is September a good time to visit Nicoya?

A good month, just outside Nicoya's most comfortable months, which run from December to February.

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

How September sits in the year

week by week

Temperature

Highs near 87°F in September, against 87°F to 96°F through the year.Highs near 31°C in September, against 31°C to 36°C through the year.

Chance of a wet day

99% of days in September, against 6% to 99% through the year.

Cloud cover

77% cover in September, against 39% to 80% through the year.

Daylight

12h 10m in September, against 11h 33m to 12h 42m through the year.

Week by week, lightly smoothed, with September shaded. The olive line marks the most comfortable months. Hover or tap a week for its figures.

Either side

  1. August88°31°low 76°low 24°7 wet days a weekRain on almost every day.
  2. September87°31°low 75°low 24°7 wet days a weekRain on almost every day.
  3. October87°31°low 75°low 24°7 wet days a weekRain on almost every day.

Where Nicoya sits, in September

America/Costa Rica
this place
typical high in September 40°F4°C95°F35°C
Sunrise, mid-September
5:32 AMsets 5:44 PM
Above the sea
10 mlow-lying
Latitude
9.9°Nnorthern hemisphere
Nearest of ours
Santa Teresa60 km south-east

The land around Nicoya, shaded by its typical high in September, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Clock times are local, for the 15th.

Elsewhere in Costa Rica in September

high · low · wet days
See September on the planning mapThe whole year in Nicoya

Typical weather, averaged over 30 years (1995–2024), read 10 km north-east of Nicoya. Its own grid square is mostly sea and holds only a daily average, so the page reads the nearest square with a true high and low near the town's height. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (10 m) against the climate model's (216 m).Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (10 m) against the climate model's (216 m). Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.