El Castillo in Fall
In fall (September, October and November), El Castillo sees average daytime highs around 30°C and overnight lows near 23°C, with 803 mm of rain over about 85 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.
Over the season highs ease from about 31°C in early September to 29°C by late November. The sky is clear or mostly clear about 3% of the time across fall, and the air most often feels oppressive.
Fall is El Castillo's 3rd-best season to visit on our travel score. El Castillo 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 El Castillo's year-round climate.
- Avg daytime high
- 30°C
- 3rd-warmest season
- Avg overnight low
- 23°C
- Rainfall
- 803 mm
- 85 wet days
- Avg wind
- 6 km/h
- Travel score
- 2.8
- 3rd-best season
- Months
- Sep · Oct · Nov
Temperature in El Castillo in Fall
Over the season highs ease from about 31°C in early September to 29°C by late November.
A typical fall day in El Castillo reaches about 30°C and drops to 23°C overnight. The warmest of the three months is September, the coolest November.
How fall really feels in El Castillo
Once humidity and wind are folded in, fall brings about 82 days that feel above 32°C and 0 that feel at or below 0°C.
The story in fall is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
El Castillo 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 | 28° / 22° | 60 | 20.2 | 11.4 | 5.0 |
| Feb | 29° / 22° | 41 | 15.9 | 11.6 | 4.9 |
| Mar | 30° / 22° | 31 | 12 | 11.9 | 4.9 |
| Apr | 31° / 23° | 47 | 13.4 | 12.2 | 3.9 |
| May | 31° / 24° | 220 | 25.9 | 12.5 | 2.7 |
| Jun | 30° / 24° | 297 | 29.6 | 12.6 | 2.5 |
| Jul | 30° / 23° | 271 | 30.3 | 12.6 | 2.7 |
| Aug | 30° / 23° | 260 | 29.9 | 12.4 | 2.6 |
| Sep | 31° / 23° | 290 | 29.4 | 12.1 | 2.4 |
| Oct | 30° / 23° | 301 | 29.7 | 11.8 | 2.7 |
| Nov | 29° / 23° | 212 | 26 | 11.5 | 3.3 |
| Dec | 28° / 22° | 112 | 24.2 | 11.4 | 4.0 |
Cloud cover in Fall
The sky is clear or mostly clear about 3% of the time across fall.
Chance of precipitation in Fall
El Castillo gets around 803 mm of rain over 85 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 6 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 3.7 kWh/m².
Hazard calendar for El Castillo
In fall, El Castillo overlaps its atlantic hurricane and rainy season season. The full year is below, with each hazard's peak months called out.
El Castillo sits in the Atlantic hurricane belt; the season peaks August–October.
El Castillo's rainy season runs May–November, when most of the year's rain falls.
Is fall a good time to visit El Castillo?
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 El Castillo.
What to pack for El Castillo in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, El Castillo sees daytime highs around 30°C and nights near 23°C. Pack light clothes and rain gear. About 85 days see rain.
Sea temperature near El Castillo 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 69 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 | 27 |
| 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 | 27 | Warm |
UV index in El Castillo 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 El Castillo peaks around March 19 at about 14 (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 | 13 | 14 | 13 | 12 | 13 | 12 | 13 | 12 | 12 | 10 | 9 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme | Very high |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 11 | Extreme |
| Feb | 13 | Extreme |
| Mar | 14 | Extreme |
| Apr | 13 | Extreme |
| May | 12 | Extreme |
| Jun | 13 | Extreme |
| Jul | 12 | Extreme |
| Aug | 13 | Extreme |
| Sep | 12 | Extreme |
| Oct | 12 | Extreme |
| Nov | 10 | Extreme |
| Dec | 9 | Very high |
Air quality in El Castillo 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 El Castillo is worst in July — around 24 µg/m³ PM2.5 (moderate), about 3.6× the cleanest month (December, 7 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) | 7 | 9 | 10 | 18 | 22 | 20 | 24 | 19 | 13 | 10 | 7 | 7 |
| Level | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 7 | Good |
| Feb | 9 | Good |
| Mar | 10 | Good |
| Apr | 18 | Moderate |
| May | 22 | Moderate |
| Jun | 20 | Moderate |
| Jul | 24 | Moderate |
| Aug | 19 | Moderate |
| Sep | 13 | Moderate |
| Oct | 10 | Good |
| Nov | 7 | Good |
| Dec | 7 | Good |
Where is El Castillo?
El Castillo sits at 11.0°N, 84.4°W, 0 m above sea level, in Nicaragua. The nearest listed city is San Carlos, 43 km away.
Topography around El Castillo
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of El Castillo.
Within 3 km, the terrain around El Castillo has only modest variations in elevation — a maximum elevation change of 128 m around an average of 59 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 403 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,141 m.
The land around El Castillo is covered by trees (69%) and grassland (26%) within 3 km, trees (67%) and grassland (31%) within 16 km, and trees (60%) and grassland (28%) within 80 km.
Nicaragua travel facts
- Travel advisory
- Level 3
- Reconsider Travel
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 34% of US
- price level, 2025
- GDP per capita
- $3,173
- 2025
- Happiness
- 6.3 / 10
- World Happiness, 2025
- Homicide rate
- 11.3
- per 100k, 2021
- Road deaths
- 16.9
- per 100k/yr, 2019
- Income group
- Lower middle
- World Bank
- English
- Moderate
- EF EPI 512
- 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 El Castillo (11.0189°, -84.397°, elevation 0 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.