Siquirres weather in October

In October, Siquirres sees average daytime highs of 26°C and overnight lows near 20°C, with 511 mm of rain across 27.9 wet days and about 11.8 hours of daylight. It is the 5th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 26°C through the month. The sky is clear or mostly clear about 2% of the time in October, and the air most often feels muggy.

Daylight stretches from about 11 h 54 min at the start of October to 11 h 36 min by month's end. Set against the rest of the year, October is Siquirres's 9th-clearest and 7th-windiest month. For the whole year in context, see Siquirres's year-round climate.

Daytime high
26°
5th warmest
Overnight low
20°
9th coldest
Rainfall
511 mm
27.9 wet days
Daylight
11 h 48 min
5:26 AM – 5:12 PM
Cloud cover
88%
9th clearest
Wind
4 km/h
7th windiest
Solar energy
4.21 kWh/m²
Travel score
3.8
out of 10

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 26°C through the month.

A typical October day in Siquirres reaches about 26°C in the afternoon and slips back to 20°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 27°C. Set against its neighbours, October runs on par with September and about 1°C warmer than November.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12620
22620
32620
42620
52620
62620
72620
82620
92620
102620
112620
122620
132620
142620
152620
162620
172620
182620
192620
202620
212620
222619
232619
242619
252619
262619
272619
282619
292619
302619
312619

Siquirres weather by month

How October compares with the rest of the year at a glance. October is the 5th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan24° / 17°21616.711.56.1
Feb24° / 17°15114.411.76.2
Mar25° / 17°15116.711.95.9
Apr26° / 18°12517.612.25.3
May26° / 20°39126.412.53.9
Jun26° / 20°29027.412.63.6
Jul26° / 20°23727.312.53.8
Aug26° / 20°22226.912.33.9
Sep26° / 20°31526.312.13.8
Oct26° / 20°51127.911.83.8
Nov25° / 19°40024.411.54.3
Dec24° / 18°28619.311.45.4

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 5% of October, with mostly cloudy or overcast conditions the remaining 92%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1595
2595
3595
4595
5595
6595
7595
8595
9595
10595
11694
12694
13694
14694
15694
16694
17694
18793
19793
20793
21892
22892
23892
24991
25991
261090
271189
281189
291288
301288
311288

Chance of precipitation in October

Any precipitation

Siquirres gets around 511 mm of rain over 27.9 wet days in October, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 90% and peaks near 91% on the wettest days.

0%20%40%60%80%100%151015202531
Rain chance (%)
191
291
391
491
591
691
791
891
991
1091
1190
1290
1390
1490
1590
1690
1790
1890
1990
2090
2190
2289
2389
2489
2589
2688
2788
2888
2988
3087
3187

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

Most of October feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, October lands in the muggy band about 90% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)
118910
218910
318910
418910
518910
618910
71909
81909
91909
101909
111909
121909
1318910
1418910
1518910
1618910
1718910
1818910
1918910
201909
211909
221909
231918
241918
251927
261936
272926
282935
292935
303934
313934

Wind in October

Winds average 4 km/h in October.

Across October, daily wind ranges from about 4 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 54 min at the start of October to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over October. Sunrise moves from 5:26 AM to 5:28 AM, and sunset from 5:20 PM to 5:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:265:20
211.95:265:20
311.95:265:19
411.95:265:19
511.95:265:18
611.95:265:17
711.95:265:17
811.85:265:16
911.85:265:16
1011.85:265:15
1111.85:265:15
1211.85:265:14
1311.85:265:14
1411.85:265:13
1511.85:265:13
1611.85:265:12
1711.85:265:12
1811.85:265:11
1911.75:265:11
2011.75:265:10
2111.75:265:10
2211.75:275:10
2311.75:275:09
2411.75:275:09
2511.75:275:09
2611.75:275:08
2711.75:275:08
2811.75:285:08
2911.75:285:07
3011.75:285:07
3111.65:285:07

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 4.21 kWh/m².

For context, solar energy here swings from a low near 3.7 kWh/m² to a high of 5.76 kWh/m² in March across the year — October's 4.21 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.4Bright
44.4Bright
54.4Bright
64.4Bright
74.3Bright
84.3Bright
94.3Bright
104.3Bright
114.3Bright
124.2Bright
134.2Bright
144.2Bright
154.2Bright
164.2Bright
174.2Bright
184.2Bright
194.1Bright
204.1Bright
214.1Bright
224.1Bright
234.1Bright
244.1Bright
254.1Bright
264.1Bright
274.1Bright
284.0Bright
294.0Bright
304.0Bright
314.0Moderate
Planning a trip in October

Is October a good time to visit Siquirres?

Our two travel scores rate October for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

3.8
Sightseeing
9th-best month of the year
3.6
Beach & pool
11th-best month of the year

October is a weaker month for outdoor sightseeing in Siquirres.

What to pack for Siquirres in October

From October's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In October, Siquirres sees daytime highs around 26°C and nights near 20°C. Pack rain gear. Worth having: light clothes. About 28 days see rain.

rain gearlight clothes

Sea temperature near Siquirres in October

The nearest coast averages about 29°C in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 34 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.

26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb27Warm
Mar28Warm
Apr28Tropical
May29Tropical
Jun29Tropical
Jul28Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec28Warm

UV index in Siquirres in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Siquirres peaks around March 20 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 10 (extreme).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 20UV 14Dec 15UV 10
UV index (midday)Level
Jan12Extreme
Feb13Extreme
Mar14Extreme
Apr14Extreme
May13Extreme
Jun13Extreme
Jul12Extreme
Aug13Extreme
Sep13Extreme
Oct12Extreme
Nov11Extreme
Dec10Extreme

Air quality in Siquirres in October

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where October falls, not just the annual average.

Air quality in Siquirres is worst in July — around 15 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (December, 7 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1515 µg/m³Dec 217 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb8Good
Mar9Good
Apr13Moderate
May15Moderate
Jun14Moderate
Jul15Moderate
Aug13Moderate
Sep11Good
Oct10Good
Nov7Good
Dec7Good
Location & terrain

Where is Siquirres?

Siquirres sits at 10.1°N, 83.5°W, 69 m above sea level, in Costa Rica. The nearest listed city is Turrialba, 29 km away.

TurrialbaGuápilesParaísoCartagoPuerto LimónIpísSan DiegoPurral

Topography around Siquirres

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Siquirres.

Within 3 km, the terrain around Siquirres has significant variations in elevation — a maximum elevation change of 486 m around an average of 137 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,108 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,765 m.

The land around Siquirres is covered by trees (78%) within 3 km, trees (81%) within 16 km, and trees (66%) and water (22%) within 80 km.

3 km
486 m
16 km
1,108 m
80 km
3,765 m
treesgrasslandcroplandartificial surfaceswater
October weather nearby: Turrialba 29 km · Guápiles 33 km · Paraíso 49 km · Cartago 52 km · Puerto Limón 53 km · Ipís 58 km · San Diego 58 km · Purral 60 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
Roman Catholic 48%none 27%Evangelical and Pentecostal 20%other 3%

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 Siquirres (10.0975°, -83.5066°, elevation 69 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).