Monthly outlook for Ceiba, PR: average high 85.2°, average low 79.5°. That is 0.5° above the climate normal for August. Precipitation is expected on 15 days (about 2.5 inches), against a normal of 13 days and 2.7 inches. The warmest day looks like 9 August (90.6°), the coolest 8 August (78°).
85.2°/79.5°
Average high / low
+0.5°
Above normal
15 / 13
Wet days / normal
2.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
85.6°
84.2°
+0.8°
18 August – 27 August
84.4°
84.3°
+0.1°
28 August – 6 September
at normal
84.6°
—
August records over 66 years
88.9°31 August 2004All-time high
70.9°31 August 2021All-time low
Climate normals and records are computed from the nearest reference point — Duque (6 mi).
Sun, 0991° / 78°0.07
91 °
Ceiba, Sunday, 9 August
Light rain. High 91°, low 78°.
Pressure30.03 inHg
Wind16.5 mph E
Humidity75%
Visibility6.2 mi
Dew point76°
Mon, 1087° / 80°0.04
87 °
Ceiba, Monday, 10 August
Light rain. High 87°, low 80°.
Pressure30.09 inHg
Wind13.8 mph E
Humidity70%
Visibility6.2 mi
Dew point74°
Tue, 1183° / 79°0.44
83 °
Ceiba, Tuesday, 11 August
Light rain. High 83°, low 79°.
Pressure30.06 inHg
Wind13.7 mph E
Humidity74%
Visibility6.2 mi
Dew point74°
Wed, 1285° / 80°0.16
85 °
Ceiba, Wednesday, 12 August
Light rain. High 85°, low 80°.
Pressure30.03 inHg
Wind13.9 mph E
Humidity73%
Visibility6.2 mi
Dew point74°
Thu, 1384° / 80°0.07
84 °
Ceiba, Thursday, 13 August
Light rain. High 84°, low 80°.
Pressure30.09 inHg
Wind19.1 mph E
Humidity72%
Visibility—
Dew point73°
Fri, 1484° / 81°0.07
84 °
Ceiba, Friday, 14 August
Light rain. High 84°, low 81°.
Pressure30.15 inHg
Wind18.3 mph E
Humidity71%
Visibility—
Dew point73°
Sat, 1584° / 81°0.07
84 °
Ceiba, Saturday, 15 August
Light rain. High 84°, low 81°.
Pressure30.12 inHg
Wind19.5 mph E
Humidity70%
Visibility—
Dew point73°
Sun, 1684° / 80°0.09
84 °
Ceiba, Sunday, 16 August
Light rain. High 84°, low 80°.
Pressure30.09 inHg
Wind18.8 mph E
Humidity72%
Visibility—
Dew point73°
Mon, 1784° / 80°0.26
84 °
Ceiba, Monday, 17 August
Light rain. High 84°, low 80°.
Pressure30.03 inHg
Wind15.4 mph NE
Humidity80%
Visibility—
Dew point76°
Tue, 1884° / 79°0.66
84 °
Ceiba, Tuesday, 18 August
Rain. High 84°, low 79°.
Pressure29.97 inHg
Wind13.3 mph NE
Humidity78%
Visibility—
Dew point74°
Wed, 1984° / 80°0.33
84 °
Ceiba, Wednesday, 19 August
Light rain. High 84°, low 80°.
Pressure30.00 inHg
Wind12.5 mph S
Humidity79%
Visibility—
Dew point76°
Thu, 2085° / 80°0.07
85 °
Ceiba, Thursday, 20 August
Light rain. High 85°, low 80°.
Pressure30.06 inHg
Wind11.6 mph SE
Humidity71%
Visibility—
Dew point73°
Fri, 2185° / 79°0.03
85 °
Ceiba, Friday, 21 August
Light rain. High 85°, low 79°.
Pressure30.06 inHg
Wind13.9 mph SE
Humidity73%
Visibility—
Dew point74°
Sat, 2284° / 79°0.04
84 °
Ceiba, Saturday, 22 August
Light rain. High 84°, low 79°.
Pressure30.03 inHg
Wind13.3 mph E
Humidity69%
Visibility—
Dew point72°
Sun, 2385° / 79°0.06
85 °
Ceiba, Sunday, 23 August
Light rain. High 85°, low 79°.
Pressure30.00 inHg
Wind12.8 mph E
Humidity69%
Visibility—
Dew point72°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2484° / 76°0.23
84 °
Ceiba, Monday, 24 August
Climate normal for this date — 60-year average.
Average high84°
Average low76°
Average precipitation0.23 in
Chance of precipitation78%
Record high88° (1963)
Record low74° (1971)
Tue, 2584° / 76°0.16
84 °
Ceiba, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high84°
Average low76°
Average precipitation0.16 in
Chance of precipitation80%
Record high87° (2025)
Record low73° (1969)
Wed, 2684° / 77°0.15
84 °
Ceiba, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high84°
Average low77°
Average precipitation0.15 in
Chance of precipitation82%
Record high87° (2015)
Record low73° (2018)
Thu, 2785° / 76°0.13
85 °
Ceiba, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.13 in
Chance of precipitation82%
Record high87° (2010)
Record low74° (2022)
Fri, 2884° / 76°0.23
84 °
Ceiba, Friday, 28 August
Climate normal for this date — 60-year average.
Average high84°
Average low76°
Average precipitation0.23 in
Chance of precipitation95%
Record high88° (2010)
Record low72° (2022)
Sat, 2985° / 76°0.14
85 °
Ceiba, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.14 in
Chance of precipitation77%
Record high88° (2010)
Record low73° (2018)
Sun, 3085° / 76°0.26
85 °
Ceiba, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.26 in
Chance of precipitation78%
Record high88° (2023)
Record low73° (2021)
Mon, 3185° / 76°0.17
85 °
Ceiba, Monday, 31 August
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.17 in
Chance of precipitation85%
Record high89° (2004)
Record low71° (2021)
Tue, 0185° / 76°0.16
85 °
Ceiba, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.16 in
Chance of precipitation78%
Record high88° (2005)
Record low73° (1986)
Wed, 0284° / 76°0.18
84 °
Ceiba, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high84°
Average low76°
Average precipitation0.18 in
Chance of precipitation92%
Record high87° (2010)
Record low72° (1986)
Thu, 0385° / 76°0.15
85 °
Ceiba, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.15 in
Chance of precipitation78%
Record high88° (2003)
Record low74° (2023)
Fri, 0485° / 76°0.17
85 °
Ceiba, Friday, 4 September
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.17 in
Chance of precipitation78%
Record high89° (1960)
Record low74° (1982)
Sat, 0585° / 76°0.3
85 °
Ceiba, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.3 in
Chance of precipitation85%
Record high88° (2012)
Record low74° (1961)
Sun, 0685° / 76°0.22
85 °
Ceiba, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high85°
Average low76°
Average precipitation0.22 in
Chance of precipitation80%
Record high89° (2012)
Record low73° (2022)
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 Ceiba, 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 Ceiba, 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.