Mercedes Norte weather in October

In October, Mercedes Norte sees average daytime highs of 24°C and overnight lows near 17°C, with 444 mm of rain across 28.8 wet days and about 11.8 hours of daylight. It is the 11th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 24°C through the month. The sky is clear or mostly clear about 1% of the time in October, and the air most often feels humid.

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 Mercedes Norte's 10th-clearest and 11th-windiest month. For the whole year in context, see Mercedes Norte's year-round climate.

Daytime high
24°
11th warmest
Overnight low
17°
7th coldest
Rainfall
444 mm
28.8 wet days
Daylight
11 h 48 min
5:28 AM – 5:15 PM
Cloud cover
92%
10th clearest
Wind
4 km/h
11th windiest
Solar energy
3.82 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 24°C through the month.

A typical October day in Mercedes Norte reaches about 24°C in the afternoon and slips back to 17°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 25°C. Set against its neighbours, October runs on par with September and on par with November.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12417
22417
32417
42417
52417
62417
72417
82417
92417
102417
112417
122417
132417
142417
152417
162417
172417
182417
192417
202417
212417
222417
232417
242417
252417
262417
272417
282417
292417
302417
312417

Mercedes Norte weather by month

How October compares with the rest of the year at a glance. October is the 11th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 16°295.811.57.8
Feb25° / 16°204.111.78.0
Mar26° / 17°205.211.97.5
Apr27° / 17°6211.212.26.2
May25° / 18°33324.712.54.2
Jun25° / 18°39027.312.63.8
Jul24° / 18°2672512.54.3
Aug25° / 18°35226.412.34.0
Sep24° / 17°42428.312.13.7
Oct24° / 17°44428.811.83.8
Nov24° / 17°22421.511.54.8
Dec24° / 17°7210.811.46.9

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 1% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 3% of October, with mostly cloudy or overcast conditions the remaining 97%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
1298
2298
3298
4298
5298
6298
7298
8298
9298
10298
11298
12298
13298
14397
15397
16397
17397
18496
19496
20496
21496
22496
23496
24496
25496
26496
27595
28694
29694
30793
31793

Chance of precipitation in October

Any precipitation

Mercedes Norte gets around 444 mm of rain over 28.8 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 93% and peaks near 96% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
196
295
395
495
595
695
794
894
994
1094
1194
1294
1394
1494
1594
1694
1793
1893
1993
2093
2192
2292
2392
2491
2591
2690
2790
2889
2988
3087
3186

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the humid band about 58% of days. Sticky, muggy-or-worse air turns up on roughly 42% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)
105644
205644
305644
405644
505644
605545
705545
805545
905545
1005545
1105545
1205545
1305644
1405644
1505644
1605644
1705743
1805743
1905842
2005842
2105941
2205941
2306040
2406139
2506238
2606238
2706337
2806535
2906634
3006733
3116831

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 5 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
265calm
275calm
285calm
295calm
305calm
315calm

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 5:28 AM to 5:31 AM, and sunset from 5:23 PM to 5:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:285:23
211.95:285:22
311.95:285:22
411.95:285:21
511.95:285:21
611.95:285:20
711.95:285:19
811.85:285:19
911.85:285:18
1011.85:285:18
1111.85:285:17
1211.85:285:17
1311.85:285:16
1411.85:285:16
1511.85:285:15
1611.85:285:15
1711.85:285:14
1811.85:285:14
1911.75:295:13
2011.75:295:13
2111.75:295:13
2211.75:295:12
2311.75:295:12
2411.75:295:12
2511.75:295:11
2611.75:305:11
2711.75:305:11
2811.75:305:10
2911.75:305:10
3011.75:305:10
3111.65:315:09

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 3.82 kWh/m².

For context, solar energy here swings from a low near 3.65 kWh/m² to a high of 5.95 kWh/m² in March across the year — October's 3.82 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
14.1Bright
24.1Bright
34.0Bright
44.0Bright
54.0Moderate
64.0Moderate
74.0Moderate
83.9Moderate
93.9Moderate
103.9Moderate
113.9Moderate
123.8Moderate
133.8Moderate
143.8Moderate
153.8Moderate
163.8Moderate
173.8Moderate
183.7Moderate
193.7Moderate
203.7Moderate
213.7Moderate
223.7Moderate
233.7Moderate
243.7Moderate
253.7Moderate
263.7Moderate
273.7Moderate
283.7Moderate
293.7Moderate
303.7Moderate
313.7Moderate
Planning a trip in October

Hazard calendar for Mercedes Norte

In seasonPeak

In October, Mercedes Norte sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Mercedes Norte's rainy season runs May–November, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is October a good time to visit Mercedes Norte?

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

3.8
Sightseeing
10th-best month of the year
3.2
Beach & pool
11th-best month of the year

October is a weaker month for outdoor sightseeing in Mercedes Norte.

What to pack for Mercedes Norte in October

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

In October, Mercedes Norte sees daytime highs around 24°C and nights near 17°C. Pack rain gear. Worth having: light clothes. About 29 days see rain.

rain gearlight clothes

Sea temperature near Mercedes Norte in October

The nearest coast averages about 28°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 56 km away) is warmest in April at about 29°C and coldest in November near 28°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
Jan29Tropical
Feb29Tropical
Mar29Tropical
Apr29Tropical
May29Tropical
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct28Tropical
Nov28Warm
Dec28Tropical

UV index in Mercedes Norte 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 Mercedes Norte peaks around March 19 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 19UV 15Dec 16UV 10
UV index (midday)Level
Jan12Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May13Extreme
Jun13Extreme
Jul13Extreme
Aug13Extreme
Sep13Extreme
Oct12Extreme
Nov12Extreme
Dec10Extreme

Air quality in Mercedes Norte 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 Mercedes Norte is worst in May — around 19 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (January, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMay 1718 µg/m³Jan 149 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb10Good
Mar11Good
Apr17Moderate
May19Moderate
Jun17Moderate
Jul18Moderate
Aug17Moderate
Sep16Moderate
Oct14Moderate
Nov12Good
Dec10Good
Location & terrain

Where is Mercedes Norte?

Mercedes Norte sits at 10.0°N, 84.1°W, 1,118 m above sea level, in Costa Rica. The nearest listed city is San Francisco, 1.0 km away.

Topography around Mercedes Norte

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

Within 3 km, the terrain around Mercedes Norte has significant variations in elevation — a maximum elevation change of 295 m around an average of 1,131 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,296 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,470 m.

The land around Mercedes Norte is covered by artificial surfaces (62%) and trees (25%) within 3 km, trees (57%) and artificial surfaces (28%) within 16 km, and trees (71%) within 80 km.

3 km
295 m
16 km
2,296 m
80 km
3,470 m
treesgrasslandcroplandartificial surfaceswater
October weather nearby: San Francisco 1.0 km · Heredia 2.0 km · San Pablo 4.0 km · San Juan 7.0 km · Colima 8.0 km · San Rafael 9.0 km · Alajuela 9.0 km · San Jose 9.0 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 Mercedes Norte (10.0061°, -84.1302°, elevation 1,118 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).