diff --git a/src/peep/peep.c b/src/peep/peep.c
index ac3f3270b1..d4e98dc93d 100644
--- a/src/peep/peep.c
+++ b/src/peep/peep.c
@@ -8007,8 +8007,9 @@ static bool peep_should_go_on_ride(rct_peep *peep, int rideIndex, int entranceNu
 						}
 					}
 
-					// Peeps won't go on certain rides while it's raining.
-					if (RCT2_GLOBAL(RCT2_ADDRESS_CURRENT_RAIN_LEVEL, uint8) != 0 && ride->var_114 < 96) {
+					// Peeps won't go on rides that aren't sufficiently undercover while it's raining.
+					// The threshold is fairly low and only requires about 10-15% of the ride to be undercover.
+					if (RCT2_GLOBAL(RCT2_ADDRESS_CURRENT_RAIN_LEVEL, uint8) != 0 && (ride->undercover_portion >> 5) < 3) {
 						if (peepAtRide) {
 							peep_insert_new_thought(peep, PEEP_THOUGHT_TYPE_NOT_WHILE_RAINING, rideIndex);
 							if (peep->happiness_growth_rate >= 64) {
diff --git a/src/ride/ride.h b/src/ride/ride.h
index d764b1df48..a1981d825d 100644
--- a/src/ride/ride.h
+++ b/src/ride/ride.h
@@ -236,8 +236,9 @@ typedef struct {
 	union {
 		uint8 inversions;			// 0x114 (???X XXXX)
 		uint8 holes;				// 0x114 (???X XXXX)
-		// This has something to do with how much of the ride is undercover.
-		uint8 var_114;
+		// The undercover portion is a very rough approximation of how much of the ride is undercover.
+		// It reaches the maximum value of 7 at about 50% undercover and doesn't increase beyond that.
+		uint8 undercover_portion;	// 0x114 (XXX?-????)
 	};
 	uint8 drops;					// 0x115 (??XX XXXX)
 	uint8 var_116;