As of 16:43 AST

Weather in Semil, PR

75°

Semil, Wednesday, 7 October, 16:43

Overcast. Feels like 77°. High 77°, low 69°.

Pressure29.91 inHg

Wind11 mph SW

Humidity97%

Visibility6.2 mi

Dew point74°

See detailed hourly forecast

Monthly outlook for Semil, PR: average high 80.6°, average low 67.3°. That is 1.7° below the climate normal for October. Precipitation is expected on 16 days (about 5.5 inches), against a normal of 11 days and 2.4 inches. The warmest day looks like 10 October (83.5°), the coolest 18 October (65°).

80.6°/67.3°

Average high / low

−1.7°

Below normal

16 / 11

Wet days / normal

5.5 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
7 October – 16 October	81.1°	83.8°	-1.5°
17 October – 26 October	79.6°	83.3°	-2°
27 October – 5 November	at normal	82.9°	—

October records over 66 years

91.4°8 October 2021All-time high

68.9°25 October 2008All-time low

Climate normals and records are computed from the nearest reference point — Luis Lloréns Torres (5 mi).

Thu, 0882° / 69°

0.21

82 °

Semil, Thursday, 8 October

Rain. High 82°, low 69°.

Pressure30.00 inHg

Wind3.8 mph SE

Humidity75%

Visibility6.2 mi

Dew point72°

Fri, 0983° / 68°

0.18

83 °

Semil, Friday, 9 October

Rain. High 83°, low 68°.

Pressure30.00 inHg

Wind6.2 mph SE

Humidity61%

Visibility6.2 mi

Dew point69°

Sat, 1083° / 68°

0.11

83 °

Semil, Saturday, 10 October

Rain. High 83°, low 68°.

Pressure30.03 inHg

Wind5.1 mph E

Humidity65%

Visibility6.2 mi

Dew point71°

Sun, 1179° / 69°

0.32

79 °

Semil, Sunday, 11 October

Rain. High 79°, low 69°.

Pressure30.03 inHg

Wind5.5 mph SE

Humidity75%

Visibility2.7 mi

Dew point69°

Mon, 1282° / 68°

0.29

82 °

Semil, Monday, 12 October

Rain. High 82°, low 68°.

Pressure30.00 inHg

Wind4.8 mph SE

Humidity68%

Visibility—

Dew point68°

Tue, 1382° / 69°

0.5

82 °

Semil, Tuesday, 13 October

Rain. High 82°, low 69°.

Pressure29.94 inHg

Wind11.5 mph SE

Humidity63%

Visibility—

Dew point67°

Wed, 1481° / 68°

0.61

81 °

Semil, Wednesday, 14 October

Rain. High 81°, low 68°.

Pressure29.97 inHg

Wind6.4 mph SE

Humidity79%

Visibility—

Dew point67°

Thu, 1582° / 67°

0.41

82 °

Semil, Thursday, 15 October

Rain. High 82°, low 67°.

Pressure29.97 inHg

Wind7.1 mph SE

Humidity51%

Visibility—

Dew point60°

Fri, 1679° / 67°

0.41

79 °

Semil, Friday, 16 October

Rain. High 79°, low 67°.

Pressure29.91 inHg

Wind4.4 mph SE

Humidity59%

Visibility—

Dew point62°

Sat, 1778° / 66°

0.32

78 °

Semil, Saturday, 17 October

Rain. High 78°, low 66°.

Pressure29.91 inHg

Wind6.1 mph SE

Humidity61%

Visibility—

Dew point62°

Sun, 1879° / 65°

0.34

79 °

Semil, Sunday, 18 October

Rain. High 79°, low 65°.

Pressure29.91 inHg

Wind4.2 mph SE

Humidity57%

Visibility—

Dew point61°

Mon, 1980° / 66°

0.15

80 °

Semil, Monday, 19 October

Light rain. High 80°, low 66°.

Pressure29.91 inHg

Wind4.7 mph S

Humidity54%

Visibility—

Dew point60°

Tue, 2080° / 66°

0.28

80 °

Semil, Tuesday, 20 October

Rain. High 80°, low 66°.

Pressure29.88 inHg

Wind5.1 mph S

Humidity56%

Visibility—

Dew point61°

Wed, 2180° / 66°

0.25

80 °

Semil, Wednesday, 21 October

Rain. High 80°, low 66°.

Pressure29.88 inHg

Wind5.9 mph S

Humidity58%

Visibility—

Dew point62°

Thu, 2280° / 66°

0.63

80 °

Semil, Thursday, 22 October

Rain. High 80°, low 66°.

Pressure29.88 inHg

Wind3.3 mph N

Humidity56%

Visibility—

Dew point61°

From day 17 onward the outlook is built from 60-year climate statistics

Fri, 2383° / 74°

0.14

83 °

Semil, Friday, 23 October

Climate normal for this date — 60-year average.

Average high83°

Average low74°

Average precipitation0.14 in

Chance of precipitation67%

Record high88° (1967)

Record low71° (1979)

Sat, 2483° / 74°

0.12

83 °

Semil, Saturday, 24 October

Climate normal for this date — 60-year average.

Average high83°

Average low74°

Average precipitation0.12 in

Chance of precipitation62%

Record high90° (2024)

Record low70° (1984)

Sun, 2583° / 74°

0.14

83 °

Semil, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high83°

Average low74°

Average precipitation0.14 in

Chance of precipitation63%

Record high89° (2024)

Record low69° (2008)

Mon, 2683° / 74°

0.17

83 °

Semil, Monday, 26 October

Climate normal for this date — 60-year average.

Average high83°

Average low74°

Average precipitation0.17 in

Chance of precipitation68%

Record high90° (2020)

Record low71° (1981)

Tue, 2783° / 74°

0.2

83 °

Semil, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high83°

Average low74°

Average precipitation0.2 in

Chance of precipitation58%

Record high89° (2024)

Record low70° (1981)

Wed, 2883° / 74°

0.16

83 °

Semil, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high83°

Average low74°

Average precipitation0.16 in

Chance of precipitation58%

Record high89° (2024)

Record low71° (1970)

Thu, 2983° / 74°

0.15

83 °

Semil, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high83°

Average low74°

Average precipitation0.15 in

Chance of precipitation65%

Record high89° (2009)

Record low71° (1970)

Fri, 3083° / 74°

0.15

83 °

Semil, Friday, 30 October

Climate normal for this date — 60-year average.

Average high83°

Average low74°

Average precipitation0.15 in

Chance of precipitation70%

Record high88° (2020)

Record low70° (1988)

Sat, 3183° / 74°

0.11

83 °

Semil, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high83°

Average low74°

Average precipitation0.11 in

Chance of precipitation65%

Record high89° (2009)

Record low69° (1963)

Sun, 0183° / 74°

0.14

83 °

Semil, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high83°

Average low74°

Average precipitation0.14 in

Chance of precipitation58%

Record high89° (2020)

Record low69° (1976)

Mon, 0283° / 74°

0.13

83 °

Semil, Monday, 2 November

Climate normal for this date — 60-year average.

Average high83°

Average low74°

Average precipitation0.13 in

Chance of precipitation68%

Record high89° (2021)

Record low68° (1961)

Tue, 0383° / 74°

0.13

83 °

Semil, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high83°

Average low74°

Average precipitation0.13 in

Chance of precipitation58%

Record high87° (2009)

Record low70° (1974)

Wed, 0483° / 73°

0.13

83 °

Semil, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high83°

Average low73°

Average precipitation0.13 in

Chance of precipitation55%

Record high88° (2021)

Record low68° (2000)

Thu, 0583° / 74°

0.15

83 °

Semil, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high83°

Average low74°

Average precipitation0.15 in

Chance of precipitation58%

Record high88° (1960)

Record low71° (1964)

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Semil, PR are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Semil, PR since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.