Temperature
Hot by day, warm at night.
86°Ftypical October high
Typical range
October climate
October in San Juan
Puerto Rico · Caribbean
Hot afternoons and some sun. Hurricane risk near peak and humid air are the main drawbacks.
Some tradeoffs
Daytime high
86°F
Lows around 78°F
Rain
Rain most days
Sun
10.5 h/day
Air feel
Very humid
Sea temp
85°F
Great for swimming
When to visit
Month-by-month fit
Best
Precipitation
It rains on most days, but usually in brief, on-and-off spells. About 20 wet days, more than in most months.
65%wet-day frequency
AmountWet-day chance
Sunshine
Cloudier spells limit sunshine.
10.5 hOctober sunshine
Heat & humidity by month
Very humid air is a major factor this month.
64%October Heat feel
Easy airWarm airHumid airVery humid air
Hourly temperature pattern
In October, afternoons feel about 91° and nights feel near 86°.
WarmHotNight hours
Clear sky
Partly cloudy skies this month.
41%October Clear sky
Clear skyCloud
Wind pattern
Calm winds are typical in October.
7 mphOctober Light breeze
Sea temperature
85°FOctober sea temp
More detailIncludes daypart comfort
Typical October day
October late afternoons are around 84°F, easing to about 81°F in early evening.
Avg temp Typical range
Morning83°F
Feels 89°F
Rain25%
Cloud55%
Humid airVery high
Sun intensityModerate
Midday86°F
Feels 91°F
Rain42%
Cloud60%
Humid airVery high
Sun intensityStrong
Late afternoon84°F
Feels 90°F
Rain52%
Cloud65%
Humid airVery high
Sun intensityModerate
Early evening81°F
Feels 88°F
Rain22%
Cloud61%
Humid airVery high
Sun intensityMinimal
Best windowData tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% | Sea°F |
|---|---|---|---|---|---|---|---|
| Jan | 82 | 73 | 1.5 | 10 | 10.9 | 79 | 80 |
| Feb | 82 | 73 | 1.2 | 9 | 11.0 | 77 | 80 |
| Mar | 83 | 73 | 1.6 | 9 | 11.2 | 76 | 80 |
| Apr | 84 | 75 | 3.0 | 12 | 11.9 | 78 | 80 |
| May | 85 | 76 | 4.0 | 15 | 11.8 | 80 | 82 |
| Jun | 87 | 78 | 2.4 | 13 | 12.3 | 79 | 83 |
| Jul | 87 | 79 | 2.7 | 16 | 12.3 | 79 | 83 |
| Aug | 87 | 79 | 3.4 | 19 | 11.7 | 81 | 84 |
| Sep | 87 | 79 | 5.2 | 21 | 10.7 | 82 | 85 |
| Oct | 86 | 78 | 4.8 | 20 | 10.5 | 83 | 85 |
| Nov | 84 | 76 | 4.2 | 18 | 10.2 | 83 | 83 |
| Dec | 82 | 75 | 1.9 | 13 | 10.6 | 81 | 82 |
Similar climates
Similar
Similar travel styleHavanaCubaSimilar travel styleChennaiIndiaSimilar travel styleDar es SalaamTanzaniaSimilar travel styleKaohsiungTaiwan
Want a side-by-side climate view? Compare San Juan with Havana.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 1, 2026
Data & methodology