AI-generatedSan Germán at a glance
- Best time
- Dec – Apr
- Warmest month
- Jul · 32°
- Sunshine a year
- 2,980 h
- Rain a year
- 697 mm
- Climate
- Tropical
- Time zone
- UTC−4
- Elevation
- 60 m
Climate in San Germán
San Germán has a tropical climate: it is warm all year round, and the seasons differ mainly in how much rain falls. July is the warmest month with average highs of 32 °C, while March is the coolest at 30 °C. With around 2,980 hours of sunshine a year, San Germán is sunny; June is the sunniest month with 8.9 hours a day.
Holiday weather through the year
Best time to visit San Germán
The best time to visit San Germán is from December to April. The rainy season is from September to October; the wettest month is September with 122 mm.
San Germán through the seasons
How the weather changes over the seasons, with averages for each.
San Germán in the dry season
Nov – Aug
Good
- 30–32 °C by day
- 8.3 h of sun a day
- 93 rainy days in all
San Germán in the rainy season
Sep – Oct
Poor
- 31–32 °C by day
- 7.4 h of sun a day
- 36 rainy days in all
Which month for what?
Beach & swimming
No sea nearby
Sea from 21 °C, warm and mostly dry
Sightseeing & hiking
No month
15–28 °C and not too much rain
Rainy months
Sep – Oct
Rainy season or more than 12 rainy days
Find your perfect month
Tell us what you like and we rate every month in San Germán for you.
Your best months: January – March
Based on the climate averages; tap a month to see its details.
Weather in October
Weather in October
Holiday weather in October
Poor
Best time to visit: December – April
October is the peak of the hurricane season Hurricane season
Keep in mindFrequent rainStorm season
A typical day in October
- Morning, 08:00: about 27°
- Midday, 13:00: about 31°
- Afternoon, 16:00: about 31°
- Evening, 20:00: about 28°
- Night, 23:00: about 27°
06:2118:07
Warm enough for a T-shirt in the evening.
Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.
Light for photos in October
- Golden hour
- Morning 06:08–06:50 · evening 17:37–18:20
- Blue hour
- Morning 05:59–06:08 · evening 18:20–18:28
Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.
October in San Germán compared with home
Loading the climate at home …
Early or late October?
In October, daytime highs stay at about 31° from start to end. The days get 0.5 h shorter.
| October | 1 Oct | 31 Oct |
|---|---|---|
| Daytime high | 31° | 31° |
| Night-time low | 25° | 25° |
| Daylight | 12.0 h | 11.5 h |
What is the weather like in San Germán in October?
In October, San Germán is hot: daytime highs average 31 °C, and even at night it stays warm at around 25 °C. The sun shines for around 7.2 hours a day. It is the rainy season: rain falls on about 18 days, totalling 107 mm. On about 27 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, October is not an ideal month for a holiday in San Germán.
More details for October
- Daylight
- 11 h 45 min06:21 – 18:07
- UV index
- 10 · very highclear sky, noon (estimate)All months
- Muggy days
- 31 daysdew point 18 °C or moreAll months
- Wind
- 17 km/haverage daily peakAll months
- Cloud cover
- 57 %on averageAll months
- Hot days
- 27 days30 °C or moreAll months
- Time zone
- UTC−4offset from UTC
How the score comes together
- Temperatureweight 50 %40 %
- Sunshineweight 20 %70 %
- Few rainy daysweight 30 %0 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Nature escape”.
What to pack in October
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
- Insect repellent
- Rain jacket or umbrella
Compare two months in San Germán
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
January has the better holiday weather in San Germán: score 77 against 34. In January, days are 1 °C cooler than in October. January has 14 fewer rainy days. The sun shines an hour longer a day in January.
| Month | October | January |
|---|---|---|
| Holiday weather score | 34 | 77better |
| Daytime high | 31° | 30° |
| Night-time low | 25° | 23° |
| Sunshine | 7.2 h | 8.0 hbetter |
| Rainy days | 18 | 4better |
| Rainfall | 107 mm | 13 mmbetter |
| Muggy days | 31 | 26better |
Based on the climate averages 1996–2025.
San Germán month by month
The typical weather for every month at a glance.
77January30° · 8.0 h
In January, San Germán is hot: daytime highs average 30 °C, and even at night it stays warm at around 23 °C. The sun shines for around 8.0 hours a day. Rain is rare: about 4 days bring 13 mm in total. On about 13 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, January is a good month for a holiday in San Germán.
San Germán in January77February30° · 8.2 h
In February, San Germán is hot: daytime highs average 30 °C, and even at night it stays warm at around 23 °C. The sun shines for around 8.2 hours a day. Rain is rare: about 5 days bring 20 mm in total. On about 12 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, February is a good month for a holiday in San Germán.
San Germán in February73March30° · 8.4 h
In March, San Germán is hot: daytime highs average 30 °C, and even at night it stays warm at around 23 °C. The sun shines for around 8.4 hours a day. Rain falls on about 7 days, adding up to 30 mm. On about 12 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, March is a good month for a holiday in San Germán.
San Germán in March63April30° · 8.7 h
In April, San Germán is hot: daytime highs average 30 °C, and even at night it stays warm at around 24 °C. The sun shines for around 8.7 hours a day. Rain is frequent, with about 10 rainy days and 48 mm in total. On about 18 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, April is a good month for a holiday in San Germán.
San Germán in April53May31° · 8.6 h
In May, San Germán is hot: daytime highs average 31 °C, and even at night it stays warm at around 25 °C. The sun shines for around 8.6 hours a day. Rain is frequent, with about 12 rainy days and 74 mm in total. On about 26 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, May is a so-so month for a holiday in San Germán.
San Germán in May50June32° · 8.9 h
In June, San Germán is hot: daytime highs average 32 °C, and even at night it stays warm at around 26 °C. The sun shines for around 8.9 hours a day. Rain is frequent, with about 10 rainy days and 44 mm in total. On about 29 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, June is a so-so month for a holiday in San Germán.
San Germán in June42July32° · 8.9 h
In July, San Germán is hot: daytime highs average 32 °C, and even at night it stays warm at around 26 °C. The sun shines for around 8.9 hours a day. Rain is frequent, with about 13 rainy days and 56 mm in total. The thermometer climbs to 30 °C or more every day. The air is often humid and muggy. All in all, July is a so-so month for a holiday in San Germán.
San Germán in July35August32° · 8.3 h
In August, San Germán is hot: daytime highs average 32 °C, and even at night it stays warm at around 26 °C. The sun shines for around 8.3 hours a day. It rains often – on about 16 days, adding up to 86 mm. On about 30 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, August is not an ideal month for a holiday in San Germán.
San Germán in August32September32° · 7.5 h
In September, San Germán is hot: daytime highs average 32 °C, and even at night it stays warm at around 26 °C. The sun shines for around 7.5 hours a day. It is the rainy season: rain falls on about 18 days, totalling 122 mm. On about 28 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, September is not an ideal month for a holiday in San Germán.
San Germán in September34October31° · 7.2 h
In October, San Germán is hot: daytime highs average 31 °C, and even at night it stays warm at around 25 °C. The sun shines for around 7.2 hours a day. It is the rainy season: rain falls on about 18 days, totalling 107 mm. On about 27 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, October is not an ideal month for a holiday in San Germán.
San Germán in October53November30° · 7.3 h
In November, San Germán is hot: daytime highs average 30 °C, and even at night it stays warm at around 24 °C. The sun shines for around 7.3 hours a day. Rain is frequent, with about 12 rainy days and 75 mm in total. On about 19 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, November is a so-so month for a holiday in San Germán.
San Germán in November73December30° · 8.0 h
In December, San Germán is hot: daytime highs average 30 °C, and even at night it stays warm at around 24 °C. The sun shines for around 8.0 hours a day. Rain is rare: about 4 days bring 21 mm in total. On about 17 days the thermometer climbs to 30 °C or more. The air is often humid and muggy. All in all, December is a good month for a holiday in San Germán.
San Germán in DecemberClimate in detail
Year & climate table
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in San Germán
How warm the nights get in each month, from the mean night-time low. Tap a month for details.
- Warm 20–24°
- Hot 24° and more
- muggy month (15+ muggy days)
HotOctober: nights around 25°. Hot nights: air conditioning makes sleeping much easier. Muggy on about 31 days (dew point 18 °C or more).
The coolest nights are in February (23°), the warmest in July (26°). Nights stay tropical all year (20 °C and more), so a room with air conditioning or at least a fan pays off. It is muggy (dew point 18 °C or more) all year, on about 341 days a year.
Temperatures through the year
Average daytime high, night-time low and sea temperature per month.
| Month | Score | Day | Night | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|
| JanuaryJan | 77 | 30° | 23° | 8.0 h | 4 | 13 |
| FebruaryFeb | 77 | 30° | 23° | 8.2 h | 5 | 20 |
| MarchMar | 73 | 30° | 23° | 8.4 h | 7 | 30 |
| AprilApr | 63 | 30° | 24° | 8.7 h | 10 | 48 |
| MayMay | 53 | 31° | 25° | 8.6 h | 12 | 74 |
| JuneJun | 50 | 32° | 26° | 8.9 h | 10 | 44 |
| JulyJul | 42 | 32° | 26° | 8.9 h | 13 | 56 |
| AugustAug | 35 | 32° | 26° | 8.3 h | 16 | 86 |
| SeptemberSep | 32 | 32° | 26° | 7.5 h | 18 | 122 |
| OctoberOct | 34 | 31° | 25° | 7.2 h | 18 | 107 |
| NovemberNov | 53 | 30° | 24° | 7.3 h | 12 | 75 |
| DecemberDec | 73 | 30° | 24° | 8.0 h | 4 | 21 |
Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences
18.08° N, 67.04° W · 60 m · America/Puerto_Rico
Sunshine
Sunshine hours in San Germán
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 7.2 of 11.8 hours of daylight in San Germán, 61 % of the daylight hours.
Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.
Rain
Rain in San Germán: rainy days and rainfall
A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.
In October, San Germán has about 18 rainy days with 107 mm of rain in total.
UV index
UV index in San Germán
How strong the sun is at noon, month by month, and how quickly unprotected skin burns.
- Clear-sky UV in October
- 10 · very highStay in the shade around midday; SPF 50, clothing, hat and sunglasses.
The sun is strongest in May (UV 13).
Minutes until sunburn in October
- Very fair skin
- about 15 min
- Fair skin
- about 15 min
- Light brown skin
- about 25 min
- Olive skin
- about 30 min
Rough guide for unprotected skin at noon under a clear sky; clouds lengthen the time, water, sand and snow shorten it. Sunscreen extends the time only partly.
Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.
Wind & clouds
Wind and clouds in San Germán
How breezy and how cloudy San Germán is through the year. Tap a month to select it on the whole page.
Wind
Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.
In October, the wind in San Germán typically peaks at 17 km/h during the day: Beaufort 3, gentle breeze.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 57 % of the sky over San Germán: variable cloud, with about 7.2 hours of sunshine a day.
Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.
Heat & humidity
Heat and humidity in San Germán
How often the day gets hot in San Germán (30 °C and more), and in which months heat and humidity come together. Tap a month to select it.
Heat calendar
- pleasant
- some hot or muggy days
- often muggy
- often hot
- hot and muggy
In October, San Germán has about 27 hot days, with an average daytime high of 31 °C: hot and muggy. Plan outdoor activities for the morning and evening, drink a lot and take breaks in the cool.
Hot days reach at least 30 °C; a month counts as muggy when the mean dew point reaches 18 °C on at least 15 days. Averages from ERA5 and ERA5-Land, 1996–2025. Muggy nights through the year
Planning a trip to San Germán
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
San Germán in the school holidays
How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.
San Germán has its best school-holiday weather during the Christmas holidays (score 75) and its weakest during October half-term (score 34).
- 66
Easter holidays
Mar – Apr
Good
- 30 °C by day
- 8.6 h of sun a day
- 9 rainy days a month
- 52
May half-term
May – Jun
Fair
- 31 °C by day
- 8.7 h of sun a day
- 12 rainy days a month
- 37
Summer holidays
Jul – Aug
Poor
- 32 °C by day
- 8.5 h of sun a day
- 15 rainy days a month
Keep in mind: Storm season
- 34
October half-term
Oct
Poor
- 31 °C by day
- 7.2 h of sun a day
- 18 rainy days a month
Keep in mind: Frequent rain, Storm season
- 75
Christmas holidays
Dec – Jan
GoodBest holidays
- 30 °C by day
- 8.0 h of sun a day
- 4 rainy days a month
Based on the climate averages 1996–2025.
Getting there
Flying from
- Nonstop flight
- about 8 h 45 min
- Distance
- 6,830 km
- Time zone
- UTC−4
- Jet lag
- About 3 days (5 h west)
Rule of thumb for flying west: for a few days before, stay up a little later, and get afternoon and evening light at your destination.
Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.
Good to know: Puerto Rico
- Currency
- US Dollar (USD)
- Languages
- English, Spanish
- Sockets
- Type A, B · 120 V
- Traffic
- Drives on the right
- Dialling code
- +1 787
- Emergency number
- 911
UK plugs need a travel adapter
Only 120 V: chargers marked 100–240 V work, other devices need a voltage converter.
Sources: GeoNames (CC BY 4.0) and Wikidata (CC0). Please check details before you travel.
Storm season
San Germán lies in an area that Atlantic hurricanes can reach. The hurricane season runs from June to November, with most storms from August to October. A direct hit on any one place is rare, but if you travel then, keep an eye on weather warnings and book flexibly.
- January
- February
- March
- April
- May
- June: Season
- July: Season
- August: Peak
- September: Peak
- October: Peak
- November: Season
- December
Official season dates of the regional warning centres (NOAA, JMA, IMD, Météo-France, BoM, Fiji Meteorological Service); not a forecast.
Compare & alternatives
Compare with another place
San Germán compared
Put San Germán side by side with another destination.
San Germán vs Cabo Rojo
In October the holiday weather in San Germán and Cabo Rojo is about equally good (score 34 vs 35). During the day it is about as warm in Cabo Rojo as in San Germán.
| in October | San Germán | Cabo Rojo |
|---|---|---|
| Holiday weather score | 34 | 35 |
| Daytime high | 31° | 31° |
| Sea | no sea nearby | 29° |
| Sunshine | 7 h | 7 h |
| Rainy days | 18 | 18 |
| Best time | Dec – Apr | Nov – Jun |
Through the year
Best places in the country
Puerto Rico in October: the best places
In October, San Germán ranks 18 of 19 destinations in this country.
- Culebra30°29°77
- 2Vieques30°29°76
- 3Mayagüez31°29°74
- 4Añasco31°29°74
- 5Rincón31°29°74
- 6Ponce31°29°74
- 7Guayama30°29°73
- 8Humacao30°29°73
- 18San GermánThis page31°34
Places nearby
Near San Germán
Other destinations close by.
Places with a similar climate
Places with a climate like San Germán
Destinations whose weather through the year is closest to San Germán's – good alternatives.
Frequently asked questions about San Germán
When is the best time to visit San Germán?
The best time to visit San Germán is from December to April. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.
What is the warmest month in San Germán?
July is the warmest month, with average highs of 32 °C and nights around 26 °C. March is the coolest month at 30 °C.
When does it rain most in San Germán?
The rainy season is from September to October; the wettest month is September with 122 mm. The driest month is January with 13 mm.
How many hours of sunshine does San Germán get?
San Germán gets around 2,980 hours of sunshine a year. The sunniest month is June with 8.9 hours a day; in October there are 7.2 hours a day.
What time zone is San Germán in?
San Germán is on UTC−4 all year.
How long is the flight from London to San Germán?
A nonstop flight from London to San Germán takes about 8 h 45 min, for a straight-line distance of about 6,830 km.
When is hurricane season in San Germán?
San Germán lies in an area that Atlantic hurricanes can reach. The hurricane season runs from June to November, with most storms from August to October. A direct hit on any one place is rare, but if you travel then, keep an eye on weather warnings and book flexibly.
Which school holidays are best for San Germán?
San Germán has its best school-holiday weather during the Christmas holidays (score 75) and its weakest during October half-term (score 34). Holiday ratings (0–100): Easter holidays 66, May half-term 52, summer holidays 37, October half-term 34, Christmas holidays 75.