Guápiles in Fall
In fall (September, October and November), Guápiles sees average daytime highs around 28°C and overnight lows near 21°C, with 1066 mm of rain over about 84 wet days across the season. It is the 2nd-warmest season and the wettest season of the year.
Over the season highs ease from about 28°C in early September to 26°C by late November. The sky is clear or mostly clear about 4% of the time across fall, and the air most often feels oppressive.
Fall is Guápiles's 3rd-best season to visit on our travel score. Guápiles has little temperature swing across the year, so its calendar seasons blur — the season framing matters less here than for a place with four distinct seasons. For the whole year in context, see Guápiles's year-round climate.
- Avg daytime high
- 28°C
- 2nd-warmest season
- Avg overnight low
- 21°C
- Rainfall
- 1066 mm
- 84 wet days
- Avg wind
- 4 km/h
- Travel score
- 3.5
- 3rd-best season
- Months
- Sep · Oct · Nov
Temperature in Guápiles in Fall
Over the season highs ease from about 28°C in early September to 26°C by late November.
A typical fall day in Guápiles reaches about 28°C and drops to 21°C overnight. The warmest of the three months is September, the coolest November.
Guápiles weather by month
How the three fall months (September, October and November) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 26° / 19° | 268 | 17.3 | 11.5 | 5.8 |
| Feb | 26° / 19° | 163 | 13.7 | 11.7 | 6.1 |
| Mar | 27° / 19° | 136 | 14.2 | 11.9 | 6.0 |
| Apr | 28° / 20° | 117 | 16.9 | 12.2 | 5.2 |
| May | 28° / 21° | 334 | 26.9 | 12.5 | 3.6 |
| Jun | 28° / 21° | 306 | 28.8 | 12.6 | 3.1 |
| Jul | 28° / 21° | 281 | 28.4 | 12.5 | 3.5 |
| Aug | 28° / 21° | 246 | 28.3 | 12.3 | 3.4 |
| Sep | 28° / 21° | 270 | 28.1 | 12.1 | 3.2 |
| Oct | 28° / 21° | 368 | 29.3 | 11.8 | 3.4 |
| Nov | 27° / 20° | 428 | 26.3 | 11.5 | 3.9 |
| Dec | 26° / 20° | 353 | 21.4 | 11.4 | 5.0 |
Cloud cover in Fall
The sky is clear or mostly clear about 4% of the time across fall.
Chance of precipitation in Fall
Guápiles gets around 1066 mm of rain over 84 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 4 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 12 h 12 min in early September to 11 h 24 min by late November. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 4.1 kWh/m².
Is fall a good time to visit Guápiles?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a weaker month for outdoor sightseeing in Guápiles.
What to pack for Guápiles in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Guápiles sees daytime highs around 28°C and nights near 21°C. Pack light clothes and rain gear. Worth having: sun protection. About 84 days see rain.
Sea temperature near Guápiles in Fall
The nearest coast averages about 29°C across fall — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 48 km away) is warmest in September at about 29°C and coldest in January near 27°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 27 | 27 | 28 | 28 | 29 | 29 | 28 | 29 | 29 | 29 | 28 | 28 |
| Comfort | Warm | Warm | Warm | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Tropical | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 27 | Warm |
| Feb | 27 | Warm |
| Mar | 28 | Warm |
| Apr | 28 | Tropical |
| May | 29 | Tropical |
| Jun | 29 | Tropical |
| Jul | 28 | Tropical |
| Aug | 29 | Tropical |
| Sep | 29 | Tropical |
| Oct | 29 | Tropical |
| Nov | 28 | Tropical |
| Dec | 28 | Warm |
UV index in Guápiles in Fall
Clear-sky midday UV across fall averages around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Guápiles peaks around March 20 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 9 (very high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 11 | 12 | 14 | 13 | 12 | 13 | 12 | 12 | 12 | 12 | 11 | 9 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 11 | Extreme |
| Feb | 12 | Extreme |
| Mar | 14 | Extreme |
| Apr | 13 | Extreme |
| May | 12 | Extreme |
| Jun | 13 | Extreme |
| Jul | 12 | Extreme |
| Aug | 12 | Extreme |
| Sep | 12 | Extreme |
| Oct | 12 | Extreme |
| Nov | 11 | Extreme |
| Dec | 9 | Very high |
Air quality in Guápiles in Fall
Average fine-particle pollution (PM2.5) through the year — so you can see where fall falls, not just the annual average.
Air quality in Guápiles is worst in July — around 23 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (January, 10 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 10 | 11 | 12 | 22 | 23 | 22 | 23 | 20 | 18 | 16 | 12 | 10 |
| Level | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 10 | Good |
| Feb | 11 | Good |
| Mar | 12 | Moderate |
| Apr | 22 | Moderate |
| May | 23 | Moderate |
| Jun | 22 | Moderate |
| Jul | 23 | Moderate |
| Aug | 20 | Moderate |
| Sep | 18 | Moderate |
| Oct | 16 | Moderate |
| Nov | 12 | Moderate |
| Dec | 10 | Good |
Where is Guápiles?
Guápiles sits at 10.2°N, 83.8°W, 254 m above sea level, in Costa Rica. The nearest listed city is Siquirres, 33 km away.
Topography around Guápiles
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Guápiles.
Within 3 km, the terrain around Guápiles has only modest variations in elevation — a maximum elevation change of 190 m around an average of 253 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,700 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,471 m.
The land around Guápiles is covered by trees (48%) and grassland (34%) within 3 km, trees (70%) and grassland (26%) within 16 km, and trees (70%) within 80 km.
Costa Rica travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 59% of US
- price level, 2025
- GDP per capita
- $19,970
- 2025
- Happiness
- 7.4 / 10
- World Happiness, 2025
- Safe drinking water
- 81%
- of population, 2024
- Homicide rate
- 17.7
- per 100k, 2023
- Road deaths
- 14.8
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Moderate
- EF EPI 516
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Guápiles (10.2168°, -83.7848°, elevation 254 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.