Historical baseline
Historical Rainfall Pattern Summary
Current cumulative rainfall observations from the AgriFlood database. These are supporting historical observations, not weather forecasts.
Peak Annual Rainfall
3,805
mm · 2020 (record high)
2025 Annual Total
3,302
mm · 363 rainy days
Highest Single Day
188.38mm
Extreme rainfall event
Peak Season
Jul, Aug, Sep, Oct
Top four months by average accumulated rainfall
Total Rainfall by Year
Bataan Province · 2015-2025 · AgriFlood shared precipitation database
Graph details: Annual recorded rainfall total in millimeters; exact values are available on hover.
Rainfall by Month and Year
Darker cells show months with more average daily rainfall · 2015-2025
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
2015
0.91
0.3
0.4
0.58
1.24
6.18
14.1
12.91
9.04
8.32
1.24
9.62
2016
0.53
1.51
0.56
0.81
3.88
7.97
12.41
18.46
8.93
10.36
4.63
5.54
2017
2.3
1.34
0.65
2.28
5.97
7.69
13.84
11.71
10.81
8.81
6.83
3.61
2018
2.16
1.41
1.23
1.21
3.95
21.99
22.42
13.89
10.69
3.51
1.23
4.63
2019
0.77
0.17
0.23
1.19
6.99
9.71
11.23
16.93
12.28
3.58
4.99
4.57
2020
1.13
4.27
5.52
6.44
3.87
18.38
9.09
9.13
10.06
26.07
20.68
10.17
2021
2.73
1.45
1.27
1.01
1.57
8.28
20.66
7.3
14.88
11.54
2.57
2.12
2022
0.95
1.12
1.74
3.21
6.77
9.02
10.8
20.59
13.73
19.19
3.74
2.94
2023
3.63
0.71
0.37
4.02
3.79
10.08
17.34
9.1
10.09
6.28
3.5
2.48
2024
0.59
0.2
1.04
0.48
5.8
7.82
21.17
10.51
16.09
16.3
2.74
5
2025
1.56
2.21
1.23
1.27
6.57
18.22
25.72
10.29
16.94
11.12
9.9
3.21
Graph details: Mean daily rainfall by month and year; darker color represents a higher recorded value.
Average Rainfall for Each Month
Typical monthly rainfall based on 2015-2025 records
Graph details: Average accumulated rainfall for each calendar month across the displayed dataset period.
Annual Summary Table
Total, mean daily, maximum single day, and rainy days per year
| Year | Total (mm) | Mean (mm/day) | Max Single Day (mm) | Rainy Days | Rainfall Band |
|---|---|---|---|---|---|
| 2025 | 3,302.2 | 9.047 | 176.43 | 363 | Very Wet |
| 2024 | 2,692.0 | 7.355 | 173.78 | 357 | Wet |
| 2023 | 2,183.6 | 5.982 | 59.90 | 361 | Lower Total |
| 2022 | 2,874.7 | 7.876 | 188.38 | 359 | Wet |
| 2021 | 2,305.5 | 6.316 | 126.93 | 359 | Lower Total |
| 2020 | 3,805.0 | 10.396 | 143.12 | 365 | Very Wet |
| 2019 | 2,223.7 | 6.092 | 92.02 | 345 | Lower Total |
| 2018 | 2,698.6 | 7.393 | 152.97 | 361 | Wet |
| 2017 | 2,319.3 | 6.354 | 87.90 | 357 | Lower Total |
| 2016 | 2,317.8 | 6.333 | 63.75 | 354 | Lower Total |
| 2015 | 1,991.9 | 5.457 | 134.58 | 352 | Lower Total |
Precipitation Data Summary
Recorded values from the 2015-2025 supporting rainfall dataset
Wet-season pattern:
The highest average accumulated rainfall occurs in Jul, Aug, Sep, Oct. These are descriptive historical observations, not a forecast.
The highest average accumulated rainfall occurs in Jul, Aug, Sep, Oct. These are descriptive historical observations, not a forecast.
Peak rainfall year:
The highest annual rainfall in the dataset occurred in 2020 with 3,805 mm.
The highest annual rainfall in the dataset occurred in 2020 with 3,805 mm.
Extreme rainfall event:
The highest single-day rainfall reached 188.38 mm, showing that short-duration heavy rainfall events are present in Bataan.
The highest single-day rainfall reached 188.38 mm, showing that short-duration heavy rainfall events are present in Bataan.
Latest year status:
2025 recorded 3,302.2 mm of rainfall across 363 rainy days.
2025 recorded 3,302.2 mm of rainfall across 363 rainy days.